iMechanica - nonlocal theory
https://imechanica.org/taxonomy/term/546
enA nonlocal physics-informed deep learning framework using the peridynamic differential operator
https://imechanica.org/node/24263
<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/12851">Physics-informed deep learning</a></div><div class="field-item odd"><a href="/taxonomy/term/546">nonlocal theory</a></div><div class="field-item even"><a href="/taxonomy/term/169">Plasticity</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><a href="https://www.researchgate.net/publication/341816480_A_nonlocal_physics-informed_deep_learning_framework_using_the_peridynamic_differential_operator">https://www.researchgate.net/publication/341816480_A_nonlocal_physics-in...</a></p>
<p><img src="https://imechanica.org/files/nonlocal.png" width="300" /></p>
<p> </p>
<p>Dear iMechanica Community: </p>
<p>I am sharing with you our latest work on Physics-Informed Neural Networks (PINN) for the discovery of non-smooth problems with steep gradients (concentration) or singularity. To this end, we propose a nonlocal PINN architecture, inspired by the Peridynamic nonlocal theory, using the Peridynamic Differential Operator. </p>
<p>If you are interested in deep learning for non-smooth problems with discontinuity, steep gradients, or even singularity, please check our pre-print at: </p>
<p><a href="https://www.researchgate.net/publication/341816480_A_nonlocal_physics-informed_deep_learning_framework_using_the_peridynamic_differential_operator">https://www.researchgate.net/publication/341816480_A_nonlocal_physics-in...</a></p>
<p>Thanks,</p>
<p>Ehsan</p>
<p> </p>
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</div></div></div>Thu, 04 Jun 2020 18:55:59 +0000haghighat24263 at https://imechanica.orghttps://imechanica.org/node/24263#commentshttps://imechanica.org/crss/node/24263IMECE 2015 Symposium: Modeling and experimental characterization for the behavior of the micro/nanostructured thin films
https://imechanica.org/node/17932
<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/74">conference</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/17">thin film</a></div><div class="field-item odd"><a href="/taxonomy/term/507">size effect</a></div><div class="field-item even"><a href="/taxonomy/term/546">nonlocal theory</a></div><div class="field-item odd"><a href="/taxonomy/term/900">microstrctural evolution</a></div><div class="field-item even"><a href="/taxonomy/term/269">manufacturing</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> We would like to invite you to participate in a symposium on <strong>“Modeling and experimental characterization for the behavior of the micro/nanostructured thin films” </strong>in ASME 2015 International Mechanical Engineering Congress & Exposition November 13 – 19, 2015 Houston, Texas. The deadline for abstract submission is <strong>March 2, 2015</strong>.</span></p>
<p><span>Organizers:</span></p>
<p><span>Danial Faghihi, <span>Institute for Computational Engineering & Sciences,UT Austin</span></span></p>
<p><span>George Voyiadjis, Department of Civil and Environmental Engineering, Louisiana State University </span><span> </span></p>
<p> </p>
<p><span>This symposium’s main focus is on experimental, theoretical and computational studies of mechanical and thermal properties and responses of small structured thin films and coatings. These studies will include, but are not limited to the following subject areas: microstructural characterization, elasticity, fatigue, fracture, plasticity and creep, thermal stability, micro/nano-mechanical testing techniques, Micro/Nano-fabrication methods, advanced Micro/Nano-manufacturing of various devices and theoretical, computational and analytical modeling of mechanical and thermal properties at small dimensions.</span></p>
<p><span>To submit an abstract please go to: <a href="http://www.asmeconferences.org/IMECE2015/Author/NewAbstract.cfm">http://www.asmeconferences.org/IMECE2015/Author/NewAbstract.cfm</a></span></p>
<ul><li>
<p><span>Track 11 Materials: Genetics to Structures</span></p>
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<p><span>Symposium: 11-4 Modeling and experimental characterization for the behavior of the micro/nanostructured thin films</span></p>
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</ul><p><span>We would very much like you to consider contributing a presentation within this symposium.</span></p>
<p> </p>
<p><span>Best regards,</span></p>
<p><span>Danial Faghihi and George Z. Voyiadjis</span></p>
<p><span> </span></p>
</div></div></div>Thu, 12 Feb 2015 23:23:58 +0000danial_faghihi17932 at https://imechanica.orghttps://imechanica.org/node/17932#commentshttps://imechanica.org/crss/node/17932Nonlinear vibration of a nanoplate embedded on a Pasternak-type foundation using nonlocal continuum theory
https://imechanica.org/node/14024
<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/95">nanomechanics</a></div><div class="field-item odd"><a href="/taxonomy/term/546">nonlocal theory</a></div><div class="field-item even"><a href="/taxonomy/term/2882">Continuum mechanics; nonlinear elasticity</a></div><div class="field-item odd"><a href="/taxonomy/term/8351">nanoplates</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>Nonlinear vibration of a nanoplate embedded on a Pasternak-type foundation using nonlocal continuum theory</strong>
</p>
<p>
BY: Payam Soltani, V. Kamali , O. Pashaei Narenjbon, A. Farshidianfar
</p>
<p>
<strong>Abstract: </strong>
</p>
<p>
Nonlocal plate continuum model is utilized to investigate the nonlinear vibration behaviour of a singlelayer
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<p>
nanoplate. The isotropic nanoplate is assumed to be embedded on a Pasternak-type elastic foundation with the
</p>
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simply supported boundary conditions. The Hamilton’s principle is applied to derive the governing equation of motion,
</p>
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and the nonlinear frequency is obtained analytically using perturbation approach. The results indicate that the nonlinear
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frequency is significantly dependent on the maximum amplitude. Furthermore, the nonlinear frequency increases with
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an increase in the nonlocal parameter, which means that the nonlinear frequency based on the local plate theory are
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underestimated. Furthermore, for arbitrary maximum amplitude, the variations of the nonlinear frequency against the
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<p>
nonlocal parameter, aspect ratio, Pasternak-type foundation constants, and size effects of the nanoplate are investigated.
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<p>
The present communication may be useful for designing nanomechanical devices and nano-electromechanical systems.
</p>
<p>
<a href="http://icns4.nanosharif.ir/proceedings/files/proceedings/MOD060.pdf">http://icns4.nanosharif.ir/proceedings/files/proceedings/MOD060.pdf</a>
</p>
<p>
</p>
</div></div></div>Tue, 15 Jan 2013 08:43:04 +0000Payam Soltani14024 at https://imechanica.orghttps://imechanica.org/node/14024#commentshttps://imechanica.org/crss/node/14024Symposium: Plasticity and Damage Size Effects at the Micron and Nano Length Scales
https://imechanica.org/node/3123
<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/74">conference</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/192">thin films</a></div><div class="field-item odd"><a href="/taxonomy/term/421">multiscale</a></div><div class="field-item even"><a href="/taxonomy/term/546">nonlocal theory</a></div><div class="field-item odd"><a href="/taxonomy/term/548">length scale</a></div><div class="field-item even"><a href="/taxonomy/term/1641">Size effects</a></div><div class="field-item odd"><a href="/taxonomy/term/2257">gradient theory</a></div><div class="field-item even"><a href="/taxonomy/term/2258">nano wires</a></div><div class="field-item odd"><a href="/taxonomy/term/2259">indentation size effect</a></div><div class="field-item even"><a href="/taxonomy/term/2260">micro-bending</a></div><div class="field-item odd"><a href="/taxonomy/term/2261">micro-torsion</a></div><div class="field-item even"><a href="/taxonomy/term/2262">micro-tension</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">
Dear Esteemed Researcher,
</p>
<p class="MsoNormal">
It is our pleasure to invite you to attend and submit an abstract to our symposium on “<strong><a href="https://outlook.civil.tamu.edu/exchweb/bin/redir.asp?URL=http://ses2008.mechse.uiuc.edu/content/call_for_abstracts/symposium.php?id=41" target="_blank">Plasticity and Damage Size Effects at the Micron and Nano Length Scales</a></strong>'' to be held at The <a href="http://ses2008.mechse.uiuc.edu/index.php" target="_blank">45th Annual Technical Meeting of the Society of Engineering Science</a>; October 12–15, 2008 at the <a href="http://www.uiuc.edu/" target="_blank">University of Illinois at Urbana-Champaign</a>. If you are interested, abstracts can be submitted at: <a href="https://outlook.civil.tamu.edu/exchweb/bin/redir.asp?URL=http://ses2008.mechse.uiuc.edu/content/call_for_abstracts/" target="_blank">http://ses2008.mechse.uiuc.edu/content/call_for_abstracts/</a>.
</p>
<p class="MsoNormal">
The deadline for submission of abstracts is <strong>June 2nd, 2008</strong>.
</p>
<p class="MsoNormal">
Symposium Organizers
</p>
<p class="MsoNormal">
Rashid K. Abu Al-Rub, <a href="mailto:rabualrub@civil.tamu.edu" target="_blank">rabualrub@civil.tamu.edu</a>
</p>
<p class="MsoNormal">
Texas A&M University
</p>
<p class="MsoNormal">
George Z. Voyiadjis, <a href="mailto:voyiadjis@eng.lsu.edu" target="_blank">voyiadjis@eng.lsu.edu</a>
</p>
<p class="MsoNormal">
Louisiana State University
</p>
<p class="MsoNormal">
Cemal Basaran, <a href="mailto:cjb@eng.buffalo.edu" target="_blank">cjb@eng.buffalo.edu</a>
</p>
<p class="MsoNormal">
The State University of New York at Buffalo
</p>
</div></div></div>Mon, 28 Apr 2008 04:03:08 +0000Rashid K. Abu Al-Rub3123 at https://imechanica.orghttps://imechanica.org/node/3123#commentshttps://imechanica.org/crss/node/3123Symposium: Plasticity and Damage Size Effects at the Micron and Nano Length Scales
https://imechanica.org/node/752
<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/74">conference</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/169">Plasticity</a></div><div class="field-item odd"><a href="/taxonomy/term/192">thin films</a></div><div class="field-item even"><a href="/taxonomy/term/507">size effect</a></div><div class="field-item odd"><a href="/taxonomy/term/545">damage</a></div><div class="field-item even"><a href="/taxonomy/term/546">nonlocal theory</a></div><div class="field-item odd"><a href="/taxonomy/term/547">strain gradient</a></div><div class="field-item even"><a href="/taxonomy/term/548">length scale</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><a href="http://ses2007.tamu.edu/" target="_blank"><img src="http://ses2007.tamu.edu/images/banner.png" border="0" width="600" height="100" align="top" /></a></p>
<p><a href="http://ses2007.tamu.edu/" target="_blank">The SES 2007 Conference</a>, Oct. 21-24, 2007, Texas A&M University campus in College Station, Texas, home to the George Bush Presidential Library and Museum.</p>
<p><strong><a href="http://ses2007.tamu.edu/symposia.php?action=sym&sid=23" target="_blank"> Symposium: Plasticity and Damage Size Effects at the Micron and Nano Length Scales</a></strong></p>
<p><strong>Call for papers</strong></p>
<p>The emerging areas of micro- and nano-devices exhibit important strength differences that result from continuous modification of the material microstructural characteristics with changing size, whereby the smaller is the size the stronger is the response. This resulted in an increasing need for basic research to better understand the underlying deformation mechanisms at the micron and nano length scales. For example, experimental works have shown increase in strength by decreasing the particle size in particle-reinforced composites, the diameter of thin wires in micro-torsion and uniaxial compression, the thickness of thin films in micro-bending and uniaxial tension, the grain size of polycrystalline materials, void size in porous media, the indentation depth in micro/nano indentation tests etc. </p>
<p>This symposium focuses upon presenting experimental, theoretical, and/or computational results that will increase our understanding of the deformation mechanisms responsible for size effects at the micron and nano length scales in metals and metal alloys, ceramics, polymers, composites, etc. Presentation topics include but are not limited to the following areas: Size effect in thin films, composites, micro/nano indentation, fracture toughness, fatigue resistance, initial yield strength, and hardening; grain size effect; surface and interface effects; strain-gradient plasticity/damage theories; dislocation mechanics; size effect testing techniques; and measurement of material length scales. </p>
<p class="MsoNormal">Organizers</p>
<p><a href="http://www.cee.lsu.edu/eng/ceeweb.nsf/$Content/voyiadjis?OpenDocument" target="_blank">George Z. Voyiadjis</a>, <a href="mailto:voyiadjis@eng.lsu.edu">voyiadjis@eng.lsu.edu</a><br /></p><p class="MsoNormal">Louisiana State University</p>
<p class="MsoNormal"><a href="http://engineering.cua.edu/civil/Faculty_Staff/profiles//abualrub.cfm" target="_blank">Rashid K. Abu Al-Rub</a>, <a href="mailto:abualrub@cua.edu">abualrub@cua.edu</a></p>
<p class="MsoNormal">Catholic University of America</p>
<p><a href="http://www.civil.buffalo.edu/profiles_basaran.shtml" target="_blank">Cemal Basaran</a>, <span> </span><a href="mailto:cjb@eng.buffalo.edu">cjb@eng.buffalo.edu</a><br /></p><p class="MsoNormal">The State University of New York at Buffalo</p>
</div></div></div>Sat, 27 Jan 2007 00:08:59 +0000Rashid K. Abu Al-Rub752 at https://imechanica.orghttps://imechanica.org/node/752#commentshttps://imechanica.org/crss/node/752Error | iMechanica