rezaavaz's blog
https://imechanica.org/blog/8570
enPhD Position at Texas A&M University
https://imechanica.org/node/26938
<div class="field field-name-taxonomy-vocabulary-6 field-type-taxonomy-term-reference field-label-hidden"><div class="field-items"><div class="field-item even"><a href="/taxonomy/term/73">job</a></div></div></div><div class="field field-name-body field-type-text-with-summary field-label-hidden"><div class="field-items"><div class="field-item even"><p>One PhD position is available in the Computational Cardiovascular Bioengineering Lab (C2BL) at the Department of Biomedical Engineering at Texas A&M University for Summer/Fall 2024 entry. The position will focus on cardiac imaging, inverse modeling, and machine learning. Candidates with a strong background in mechanics and computational modeling/programming and an interest in cardiovascular medicine are encouraged to send their CV to <a href="mailto:rezaavaz@tamu.edu">rezaavaz@tamu.edu</a>. Select research projects are described on our <a href="https://c2bl.engr.tamu.edu/">website</a> and <a href="https://twitter.com/avazlab">Twitter page</a>.</p>
</div></div></div>Tue, 24 Oct 2023 15:57:50 +0000rezaavaz26938 at https://imechanica.orghttps://imechanica.org/node/26938#commentshttps://imechanica.org/crss/node/26938PhD Position at Texas A&M University
https://imechanica.org/node/26375
<div class="field field-name-taxonomy-vocabulary-6 field-type-taxonomy-term-reference field-label-hidden"><div class="field-items"><div class="field-item even"><a href="/taxonomy/term/73">job</a></div></div></div><div class="field field-name-body field-type-text-with-summary field-label-hidden"><div class="field-items"><div class="field-item even"><p><span>One PhD position is available in the Computational Cardiovascular Bioengineering Lab (</span><a href="https://c2bl.engr.tamu.edu/"><strong>C2BL</strong></a><span>) at the Department of Biomedical Engineering at Texas A&M University for </span><strong>Fall 2023 entry</strong><span>. The position will focus on cardiac imaging, inverse modeling, and machine learning. Candidates with a strong background in mechanics and computational modeling/programming and an interest in cardiovascular medicine </span><span>are encouraged to send their CV to </span><a href="mailto:rezaavaz@tamu.edu"><strong>rezaavaz@tamu.edu</strong></a><span>. Select research projects are described </span><a href="http://c2bl.engr.tamu.edu/"><strong>here</strong></a><span>.</span></p>
</div></div></div>Sun, 20 Nov 2022 15:19:51 +0000rezaavaz26375 at https://imechanica.orghttps://imechanica.org/node/26375#commentshttps://imechanica.org/crss/node/26375PhD Position at Texas A&M University
https://imechanica.org/node/25886
<div class="field field-name-taxonomy-vocabulary-6 field-type-taxonomy-term-reference field-label-hidden"><div class="field-items"><div class="field-item even"><a href="/taxonomy/term/73">job</a></div></div></div><div class="field field-name-body field-type-text-with-summary field-label-hidden"><div class="field-items"><div class="field-item even"><p>One PhD position is available in the Computational Cardiovascular Bioengineering Lab (<a href="https://c2bl.engr.tamu.edu/"><strong>C2BL</strong></a>) at the Department of Biomedical Engineering at Texas A&M University for <strong>Fall 2022 entry</strong>. The position will focus on cardiac imaging, inverse modeling, and machine learning. Candidates with a strong background in mechanics and computational modeling/programming and an interest in cardiovascular medicine <strong>who can be present in the US by fall 2022</strong> are encouraged to send their CV to <a href="mailto:rezaavaz@tamu.edu"><strong>rezaavaz@tamu.edu</strong></a>. Select research projects are described <a href="http://c2bl.engr.tamu.edu/"><strong>here</strong></a>. Early application is encouraged.</p>
</div></div></div>Tue, 05 Apr 2022 11:04:37 +0000rezaavaz25886 at https://imechanica.orghttps://imechanica.org/node/25886#commentshttps://imechanica.org/crss/node/25886PhD Position at Texas A&M University
https://imechanica.org/node/25575
<div class="field field-name-taxonomy-vocabulary-6 field-type-taxonomy-term-reference field-label-hidden"><div class="field-items"><div class="field-item even"><a href="/taxonomy/term/73">job</a></div></div></div><div class="field field-name-body field-type-text-with-summary field-label-hidden"><div class="field-items"><div class="field-item even"><p class="MsoNormal"><span>One PhD position is available in the Computational Cardiovascular Bioengineering Lab (</span><a href="https://c2bl.engr.tamu.edu/"><strong><span>C2BL</span></strong></a><span><span>) at the Department of Biomedical Engineering at Texas A&M University for Summer/Fall 2022 entry. The position will focus on cardiac imaging, inverse modeling, and machine learning. Candidates with a strong background in mechanics and computational modeling/programming and an interest in cardiovascular medicine are encouraged to send their CV to </span></span><a href="mailto:rezaavaz@tamu.edu"><strong><span>rezaavaz@tamu.edu</span></strong></a><span><span>. Select research projects are described <a href="http://c2bl.engr.tamu.edu/"><strong>here</strong></a>. Early application is encouraged.</span></span></p>
</div></div></div>Thu, 18 Nov 2021 00:39:47 +0000rezaavaz25575 at https://imechanica.orghttps://imechanica.org/node/25575#commentshttps://imechanica.org/crss/node/25575PhD Positions at Texas A&M University
https://imechanica.org/node/25126
<div class="field field-name-taxonomy-vocabulary-6 field-type-taxonomy-term-reference field-label-hidden"><div class="field-items"><div class="field-item even"><a href="/taxonomy/term/73">job</a></div></div></div><div class="field field-name-body field-type-text-with-summary field-label-hidden"><div class="field-items"><div class="field-item even"><p>Two PhD positions are available in the Computational Cardiovascular Bioengineering Lab (<a href="https://c2bl.engr.tamu.edu/">C2BL</a>) at the Department of Biomedical Engineering at Texas A&M University for Spring 2022 entry. The positions will focus on cardiac imaging, inverse modeling, and machine learning. Candidates with a strong background in mechanics and computational modeling/programming and an interest in cardiovascular medicine are encouraged to send their CV to <a href="mailto:rezaavaz@tamu.edu">rezaavaz@tamu.edu</a>. The Spring 2022 application deadline is July 1st. Thank you!</p>
</div></div></div>Sat, 24 Apr 2021 12:53:31 +0000rezaavaz25126 at https://imechanica.orghttps://imechanica.org/node/25126#commentshttps://imechanica.org/crss/node/25126Postdoctoral position at Texas A&M University
https://imechanica.org/node/24255
<div class="field field-name-taxonomy-vocabulary-6 field-type-taxonomy-term-reference field-label-hidden"><div class="field-items"><div class="field-item even"><a href="/taxonomy/term/73">job</a></div></div></div><div class="field field-name-body field-type-text-with-summary field-label-hidden"><div class="field-items"><div class="field-item even"><p class="MsoNormal"><span><span>One postdoctoral position is available in the </span>Computational Cardiovascular Bioengineering Lab <span>at the Department of Biomedical Engineering at Texas A&M University. This position will focus on developing and using integrated computational-experimental models of cardiovascular function. Some representative research projects are described here: <a href="http://c2bl.engr.tamu.edu/">http://c2bl.engr.tamu.edu/</a>.</span></span></p>
<p class="MsoNormal"><span><span>Interested candidates with a strong background in programming and computational modeling and sound knowledge of cardiovascular physiology are encouraged to </span>email me their CV at <a href="mailto:rezaavaz@tamu.edu">rezaavaz@tamu.edu</a>.</span></p>
</div></div></div>Tue, 02 Jun 2020 00:20:54 +0000rezaavaz24255 at https://imechanica.orghttps://imechanica.org/node/24255#commentshttps://imechanica.org/crss/node/24255Postdoctoral and PhD positions at Texas A&M University
https://imechanica.org/node/23762
<div class="field field-name-taxonomy-vocabulary-6 field-type-taxonomy-term-reference field-label-hidden"><div class="field-items"><div class="field-item even"><a href="/taxonomy/term/73">job</a></div></div></div><div class="field field-name-body field-type-text-with-summary field-label-hidden"><div class="field-items"><div class="field-item even"><p class="MsoNormal">One postdoctoral and multiple PhD positions are available in the Computational Cardiovascular Bioengineering Lab (C2BL) at the Department of Biomedical Engineering at Texas A&M University. Please see the attached flyer for descriptions of some of the projects.</p>
<p class="MsoNormal">Interested candidates with a strong background in programming and computational modeling and sound knowledge of cardiovascular physiology are encouraged to apply. For PhD positions, please apply for the upcoming admission cycle as laid out here</p>
<p class="MsoNormal"> <a href="https://engineering.tamu.edu/biomedical/admissions-and-aid/graduate-admissions/index.html">https://engineering.tamu.edu/biomedical/admissions-and-aid/graduate-admissions/index.html</a></p>
<p class="MsoNormal">Please submit your application before the Dec. 1st deadline. For the postdoctoral position, please email me (<a href="mailto:rezaavaz@tamu.edu">rezaavaz@tamu.edu</a>) your CV.</p>
</div></div></div><div class="field field-name-upload field-type-file field-label-hidden"><div class="field-items"><div class="field-item even"><table class="sticky-enabled">
<thead><tr><th>Attachment</th><th>Size</th> </tr></thead>
<tbody>
<tr class="odd"><td><span class="file"><img class="file-icon" alt="PDF icon" title="application/pdf" src="/modules/file/icons/application-pdf.png" /> <a href="https://imechanica.org/files/Flyer_1.pdf" type="application/pdf; length=266614">Flyer.pdf</a></span></td><td>260.37 KB</td> </tr>
</tbody>
</table>
</div></div></div>Sun, 17 Nov 2019 13:28:03 +0000rezaavaz23762 at https://imechanica.orghttps://imechanica.org/node/23762#commentshttps://imechanica.org/crss/node/23762Call For Abstracts: USNC/TAM 2018 Symposium "Growth and Remodeling of Living Matter"
https://imechanica.org/node/21656
<div class="field field-name-body field-type-text-with-summary field-label-hidden"><div class="field-items"><div class="field-item even"><p>Dear Colleagues:</p>
<p>We would like to invite you to submit an abstract to Symposium: Growth and Remodeling of Living Matter, as part of the 18th U.S. National Congress for Theoretical and Applied Mechanics (<a href="http://sites.northwestern.edu/usnctam2018/" target="_blank">USNCTAM 2018</a>). The conference will be hosted by Northwestern University, at the Hyatt Regency O'Hare from June 5 to June 9, 2018. </p>
<p class="MsoNormal">More information about the symposium can be found here: <a href="http://sites.northwestern.edu/usnctam2018/312-growth-and-remodeling-of-living-matter/" target="_blank">http://sites.northwestern.edu/usnctam2018/312-growth-and-remodeling-of-living-matter/</a></p>
<p>Deadline for submission of an abstract is November 10th, 2017. If you have any questions, please feel free to contact us.</p>
<p class="MsoNormal">We are looking forward to receiving a contribution from you!</p>
<p class="MsoNormal">Thank you,</p>
<p class="MsoNormal">Reza Avaz</p>
<p class="MsoNormal">Symposium Organizers:</p>
<p class="MsoNormal"><span>Michael Sacks (</span>University<span> of Texas at Austin, </span><a href="mailto:rezaavaz@ices.utexas.edu">msacks@ices.utexas.edu</a><span>)</span></p>
<p class="MsoNormal">Reza Avaz (University of Texas at Austin, <a href="mailto:rezaavaz@ices.utexas.edu">rezaavaz@ices.utexas.edu</a>)</p>
<p>Joao Soares (Virginia Commonwealth University, <a href="mailto:joao@ices.utexas.edu">jsoares@vcu.edu</a>)</p>
</div></div></div>Tue, 03 Oct 2017 21:07:07 +0000rezaavaz21656 at https://imechanica.orghttps://imechanica.org/node/21656#commentshttps://imechanica.org/crss/node/21656Call For Abstracts: SES 2017 Symposium "Growth and Remodeling of Living Matter"
https://imechanica.org/node/21111
<div class="field field-name-body field-type-text-with-summary field-label-hidden"><div class="field-items"><div class="field-item even"><p><span>Dear Colleagues:</span>
</p><p><span>We would like to invite you to submit an abstract to S</span><span>ymposium</span><span>: </span><span>Growth and Remodeling of Living Matter, </span><span>as part of</span><span> the </span><span>54th Annual Technical Meeting of the Society of Engineering Science (<a href="http://www.northeastern.edu/ses2017/" target="_blank">SES 2017</a>). </span><span>The conference will be held at Northeastern University in Boston, MA on July 25-28, 2017. </span></p>
<p class="MsoNormal"><span>More information about the symposium and link to contribute can be found here: </span><span><a href="http://www.northeastern.edu/ses2017/track-topics/symposia/symposium-vii-a-growth-and-remodeling-of-living-matter/" target="_blank"><span>http://www.northeastern.edu/ses2017/track-topics/symposia/symposium-vii-a-growth-and-remodeling-of-living-matter/</span></a></span></p>
<p> <span>Deadline for submission of an abstract is April 15th, 2017. If you have any questions, please feel free to contact us.</span></p>
<p class="MsoNormal"><span>We are looking forward to receiving a contribution from you!</span></p>
<p class="MsoNormal"><span>Thank you,</span></p>
<p class="MsoNormal"><span>Reza Avaz</span></p>
<p class="MsoNormal"><span>Symposium Organizers:</span></p>
<p class="MsoNormal"><span>Reza Avaz (University of Texas at Austin, <a href="mailto:rezaavaz@ices.utexas.edu">rezaavaz@ices.utexas.edu</a>)</span></p>
<p><span>Joao Soares (University of Texas at Austin, </span><span><a href="mailto:joao@ices.utexas.edu"><span>joao@ices.utexas.edu</span></a><span>)</span></span></p>
</div></div></div>Tue, 04 Apr 2017 15:29:16 +0000rezaavaz21111 at https://imechanica.orghttps://imechanica.org/node/21111#commentshttps://imechanica.org/crss/node/21111The rheology of non-dilute dispersions of highly deformable viscoelastic particles in Newtonian fluids
https://imechanica.org/node/17744
<div class="field field-name-taxonomy-vocabulary-6 field-type-taxonomy-term-reference field-label-hidden"><div class="field-items"><div class="field-item even"><a href="/taxonomy/term/76">research</a></div></div></div><div class="field field-name-body field-type-text-with-summary field-label-hidden"><div class="field-items"><div class="field-item even"><p><strong>Abstract</strong>: We present a model for the rheological behaviour of non-dilute suspensions of initially spherical viscoelastic particles in viscous fluids under uniform Stokes flow conditions. The particles are assumed to be neutrally buoyant Kelvin–Voigt solids undergoing time-dependent finite deformations and exhibiting generalized neo-Hookean behaviour in their purely elastic limit. We investigate the effects of the shape dynamics and constitutive properties of the viscoelastic particles on the macroscopic rheological behaviour of the suspensions. The proposed model makes use of known homogenization estimates for composite material systems consisting of random distributions of aligned ellipsoidal particles with prescribed two-point correlation functions to generate corresponding estimates for the instantaneous (incremental) response of the suspensions, together with appropriate evolution laws for the relevant microstructural variables. To illustrate the essential features of the model, we consider two special cases: (i) extensional flow and (ii) simple shear flow. For each case, we provide the time-dependent response and, when available, the steady-state solution for the average particle shape and orientation, as well as for the effective viscosity and normal stress differences in the suspensions. The results exhibit shear thickening for extensional flows and shear thinning for simple shear flows, and it is found that the volume fraction and constitutive properties of the particles significantly influence the rheology of the suspensions under both types of flows. In particular, for extensional flows, suspensions of particles with finite extensibility constraints are always found to reach a steady state, while this is only the case at sufficiently low strain rates for suspensions of (less realistic) neo-Hookean particles, as originally reported by Roscoe (J. Fluid Mech., vol. 28, 1967, pp. 273–293) and Gao et al. (J. Fluid Mech., vol. 687, 2011, pp. 209–237). For shear flows, viscoelastic particles with high viscosities can experience a damped oscillatory motion of decreasing amplitude before reaching the steady state.</p>
<p><a href="http://journals.cambridge.org/action/displayAbstract?fromPage=online&aid=9478829&fileId=S0022112014006879">http://journals.cambridge.org/action/displayAbstract?fromPage=online&aid=9478829&fileId=S0022112014006879</a></p>
</div></div></div><div class="field field-name-upload field-type-file field-label-hidden"><div class="field-items"><div class="field-item even"><table class="sticky-enabled">
<thead><tr><th>Attachment</th><th>Size</th> </tr></thead>
<tbody>
<tr class="odd"><td><span class="file"><img class="file-icon" alt="PDF icon" title="application/pdf" src="/modules/file/icons/application-pdf.png" /> <a href="https://imechanica.org/files/NewtonianFluid.pdf" type="application/pdf; length=994790">NewtonianFluid.pdf</a></span></td><td>971.47 KB</td> </tr>
<tr class="even"><td><span class="file"><img class="file-icon" alt="Image icon" title="image/jpeg" src="/modules/file/icons/image-x-generic.png" /> <a href="https://imechanica.org/files/Untitled_4.jpg" type="image/jpeg; length=85539">Untitled.jpg</a></span></td><td>83.53 KB</td> </tr>
</tbody>
</table>
</div></div></div>Tue, 06 Jan 2015 23:41:40 +0000rezaavaz17744 at https://imechanica.orghttps://imechanica.org/node/17744#commentshttps://imechanica.org/crss/node/17744Constitutive modeling of hyperelastic solids reinforced by spheroidal particles under large deformations
https://imechanica.org/node/17042
<div class="field field-name-taxonomy-vocabulary-6 field-type-taxonomy-term-reference field-label-hidden"><div class="field-items"><div class="field-item even"><a href="/taxonomy/term/76">research</a></div></div></div><div class="field field-name-taxonomy-vocabulary-8 field-type-taxonomy-term-reference field-label-hidden"><div class="field-items"><div class="field-item even"><a href="/taxonomy/term/549">continuum mechanics</a></div><div class="field-item odd"><a href="/taxonomy/term/609">homogenization</a></div><div class="field-item even"><a href="/taxonomy/term/10020">Particle-Reinforced Composite</a></div><div class="field-item odd"><a href="/taxonomy/term/4207">finite deformations</a></div></div></div><div class="field field-name-body field-type-text-with-summary field-label-hidden"><div class="field-items"><div class="field-item even"><p>This paper presents a homogenization-based constitutive model for the mechanical behavior of particle-reinforced elastomers with random microstructures subjected to finite deformations. The model is based on a recently developed homogenization method (<a href="http://imechanica.org/files/JElas-12.pdf">Avazmohammadi and Ponte Castaneda 2013; J. Elasticity 112, 1828–1850</a>) for two-phase, hyperelastic composites, and is able to directly account for the shape, orientation, and concentration of the particles. We describe the application of this method to composites consisting of an incompressible rubber reinforced by aligned, spheroidal, rigid particles, undergoing generally non-aligned, three-dimensional loadings. While the results are valid for finite particle concentrations, in the dilute limit they can be viewed as providing a generalization of Eshelby’s results in linear elasticity. In particular, we provide analytical estimates for the overall response and microstructure evolution of the particle-reinforced composites with generalized neo-Hookean matrix phases under non-aligned loadings. For the special case of aligned pure shear and axisymmetric shear loadings, we give closed-form expressions for the effective stored-energy function of the composites with neo-Hookean matrix behavior. Moreover, we investigate the possible development of “macroscopic” (shear band-type) instabilities in the homogenized behavior of the composite at sufficiently large deformations. These instabilities whose wavelengths are much larger than the typical size of the microstructure are detected by making use of the loss of strong ellipticity condition for the effective stored-energy function of the composites. The analytical results presented in this paper will be complemented in Part II of this work by specific applications for several representative microstructures and loading configurations.</p>
<p> </p>
<p>This research has been published in two parts in Philosophical Magazine available at the following links:</p>
<p><a href="http://www.tandfonline.com/doi/abs/10.1080/14786435.2013.878048#.U_U3m_ldWYA">http://www.tandfonline.com/doi/abs/10.1080/14786435.2013.878048#.U_U3m_ldWYA</a></p>
<p><a href="http://www.tandfonline.com/doi/abs/10.1080/14786435.2013.878049#.U_U4fvldWYA%20%20%20">http://www.tandfonline.com/doi/abs/10.1080/14786435.2013.878049#.U_U4fvldWYA</a></p>
<p><a href="http://www.tandfonline.com/doi/abs/10.1080/14786435.2013.878049#.U_U4fvldWYA%20%20%20"> </a></p>
<p> </p>
</div></div></div><div class="field field-name-upload field-type-file field-label-hidden"><div class="field-items"><div class="field-item even"><table class="sticky-enabled">
<thead><tr><th>Attachment</th><th>Size</th> </tr></thead>
<tbody>
<tr class="odd"><td><span class="file"><img class="file-icon" alt="Image icon" title="image/jpeg" src="/modules/file/icons/image-x-generic.png" /> <a href="https://imechanica.org/files/Spheroid.jpg" type="image/jpeg; length=220434">Spheroid.jpg</a></span></td><td>215.27 KB</td> </tr>
<tr class="even"><td><span class="file"><img class="file-icon" alt="PDF icon" title="application/pdf" src="/modules/file/icons/application-pdf.png" /> <a href="https://imechanica.org/files/Sphroidal_Part%20I.pdf" type="application/pdf; length=950839" title="Sphroidal_Part I.pdf">Part I</a></span></td><td>928.55 KB</td> </tr>
<tr class="odd"><td><span class="file"><img class="file-icon" alt="PDF icon" title="application/pdf" src="/modules/file/icons/application-pdf.png" /> <a href="https://imechanica.org/files/Sphroidal_Part%20II.pdf" type="application/pdf; length=988151" title="Sphroidal_Part II.pdf">Part II</a></span></td><td>964.99 KB</td> </tr>
</tbody>
</table>
</div></div></div>Wed, 20 Aug 2014 22:21:26 +0000rezaavaz17042 at https://imechanica.orghttps://imechanica.org/node/17042#commentshttps://imechanica.org/crss/node/17042Effective behavior of porous elastomers containing aligned spheroidal voids
https://imechanica.org/node/15270
<div class="field field-name-taxonomy-vocabulary-6 field-type-taxonomy-term-reference field-label-hidden"><div class="field-items"><div class="field-item even"><a href="/taxonomy/term/76">research</a></div></div></div><div class="field field-name-body field-type-text-with-summary field-label-hidden"><div class="field-items"><div class="field-item even"><p>[img_assist|nid=15271|title=|desc=|link=none|align=center|width=149|height=96]</p>
<p><strong>Abstract</strong>. The theoretical need to recognize the link between the basic microstructure of nonlinear porous materials and their macroscopic mechanical behavior is continuously rising owing to the existing engineering applications. In this regard, an analytical homogenization model is proposed to establish an overall, continuum-level constitutive law for nonlinear elastic materials containing prolate/oblate spheroidal voids undergoing finite axisymmetric deformations. The microgeometry of the porous materials is taken to be voided spheroid assemblage consisting of confocally voided spheroids of all sizes having the same orientation. Following a kinematically admissible deformation field for a confocally voided spheroid, which is the basic constituent of the microstructure, we make use of an energy-averaging procedure to obtain a constitutive relation between the macroscopic nominal stress and deformation gradient. In this work, both prolate and oblate voids are considered. As a numerical example, we study macroscopic nominal stress components for a hyperelastic porous material consisting of a neo-Hookean matrix and prolate/oblate voids subjected to 3-D and plane strain dilatational loadings. In this numerical study, the relation between the relevant microstructural variables (i.e., initial porosity and void aspect ratio) for a rather large range of applied stretch is put into evidence for two types of loading. Finally, a finite element (FE) simulation is presented, and the homogenization model is assessed through comparison of its predictions with the corresponding FE results. The illustrated agreement between the results demonstrates a good accuracy of the model up to rather large deformations. [img_assist|nid=15269|title=Porous spheroids assemblage consisting of voided spheroidal elements undergoing tri-axial axisymmetric stretching|desc=|link=none|align=center|width=648|height=416]</p>
</div></div></div><div class="field field-name-upload field-type-file field-label-hidden"><div class="field-items"><div class="field-item even"><table class="sticky-enabled">
<thead><tr><th>Attachment</th><th>Size</th> </tr></thead>
<tbody>
<tr class="odd"><td><span class="file"><img class="file-icon" alt="PDF icon" title="application/pdf" src="/modules/file/icons/application-pdf.png" /> <a href="https://imechanica.org/files/ActaMech_2013.pdf" type="application/pdf; length=493266" title="ActaMech_2013.pdf">ActaMech_2013.pdf</a></span></td><td>481.71 KB</td> </tr>
</tbody>
</table>
</div></div></div>Sun, 08 Sep 2013 00:25:12 +0000rezaavaz15270 at https://imechanica.orghttps://imechanica.org/node/15270#commentshttps://imechanica.org/crss/node/15270Overall Mechanical Response of Particle-Reinforced Elastomers at Finite Strains
https://imechanica.org/node/15080
<div class="field field-name-taxonomy-vocabulary-6 field-type-taxonomy-term-reference field-label-hidden"><div class="field-items"><div class="field-item even"><a href="/taxonomy/term/76">research</a></div></div></div><div class="field field-name-body field-type-text-with-summary field-label-hidden"><div class="field-items"><div class="field-item even"><p>[img_assist|nid=15079|title=Elastomers Reinforced by Spherical Particles Under Different Loading Conditions|desc=|link=none|align=left|width=300|height=264]<strong>Abstract</strong> An approximate homogenization method is proposed and used to obtain estimates for the effective constitutive behavior and associated microstructure evolution in hyperelastic composites undergoing finite-strain deformations. The method yields a constitutive relation accounting for the evolution of characteristic features of the underlying microstructure in the composites, when subjected to large deformations. The method is applied to elastomers containing random distributions of aligned, rigid, ellipsoidal inclusions, and explicit analytical estimates are obtained for the special case of spherical inclusions distributed isotropically in an incompressible neo-Hookean matrix. In addition, the method is also applied to two-dimensional composites with random distributions of aligned, elliptical fibers, and the results are compared with corresponding results of earlier homogenization estimates and finite element simulations.</p>
</div></div></div><div class="field field-name-upload field-type-file field-label-hidden"><div class="field-items"><div class="field-item even"><table class="sticky-enabled">
<thead><tr><th>Attachment</th><th>Size</th> </tr></thead>
<tbody>
<tr class="odd"><td><span class="file"><img class="file-icon" alt="PDF icon" title="application/pdf" src="/modules/file/icons/application-pdf.png" /> <a href="https://imechanica.org/files/JElas-12.pdf" type="application/pdf; length=1920837" title="JElas-12.pdf">JElas-12.pdf</a></span></td><td>1.83 MB</td> </tr>
</tbody>
</table>
</div></div></div>Thu, 08 Aug 2013 14:45:55 +0000rezaavaz15080 at https://imechanica.orghttps://imechanica.org/node/15080#commentshttps://imechanica.org/crss/node/15080Error | iMechanica