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Theoretical and Applied Fracture Mechanics' live webinar by Prof. René de Borst - Friday 28 May at 2.30 PM GMT (3.30 PM BST)

Submitted by lsusmel on

Esteemed Colleagues,

this post is to invite you all to attend the next free on-line global live TAFMech webinar on Fracture Mechanics-related topics that will take place this Friday (28/05) at 2.30 PM GMT (3.30 PM BST). The webinar’s details are as follows:

 

Þ Prof. René de Borst – University of Sheffield, Sheffield, UK

Title of seminar: Smeared vs discrete approaches in computational fracture mechanics

 

Date/time: 28 May 2021 at 2.30 PM GMT (3.30 PM BST)

 

Flexoelectricity in soft elastomers and the molecular mechanisms underpinning the design and emergence of giant flexoelectricity

Submitted by matthew.grasinger on
research
preprint
Flexoelectricity
Elastomers

Dear colleagues,
We invite you to see the preprint of our new paper "Flexoelectricity in soft elastomers and the molecular mechanisms underpinning the design and emergence of giant flexoelectricity" that will appear in PNAS. Here we present a molecular-to-continuum scale theory for the flexoelectric effect in elastomers. The theory unveils a mechanism for achieving giant flexoelectricity--which finds support in prior experimental results; it is then leveraged for designing elastomers for 1) piezoelectricity, 2) tuning the direction of flexoelectricity, and 3) flexoelectricity which is invariant with respect to spurious deformations (https://doi.org/10.1073/pnas.2102477118).

Application of stress gradient plasticity model in different passivated problems

Submitted by Nayebi on

In classical plasticity models, the physical length scale is not considered to control the size effects. Strain gradient plasticity models include one or more length scales that control size effects. Stress gradient plasticity model is introduced with a specific physical length scale and does not include any additional parameters.

On Eshelby's Inclusion Problem in Nonlinear Anisotropic Elasticity

Submitted by arash_yavari on
research
eigenstrain
anelasticity
Nonlinear elasticity
inclusion
Geometric mechanics
Material Manifold

The recent literature of finite eignestrains in nonlinear elastic solids is reviewed, and Eshelby's inclusion problem at finite strains is revisited. The subtleties of the analysis of combinations of finite eigenstrains for the example of  combined finite radial, azimuthal, axial, and twist eigenstrains in a finite circular cylindrical bar are discussed. The stress field of a spherical inclusion with uniform pure dilatational eigenstrain in a radially-inhomogeneous spherical ball made of arbitrary incompressible isotropic solids is analyzed.

Open webinar on Metamaterials, Glaucio Paulino, May 28, 5:00PM-7:30PM, CET

Submitted by Elena Benvenuti on

Origami Engineering: Metamaterials, Structures, and Robots

Prof. Glaucio Paulino

Georgia Institute of Technology, Atlanta, USA

 

JOIN THE WEBINARS

The webinars are hosted by the University of Ferrara on GoToMeeting platform. Join us on PC, tablet or smartphone at:

https://www.gotomeet.me/VirtualRoom-8/prin2015-metamaterials-webinars

Graduate Assistant Position in Fall 2021: Finite element modeling and simulations

Submitted by jeonghokim on
job

Graduate Research Assistant position (GPA: 3.5 or higher) is available to US Citizen for finite element modeling and simulations in the fall semester of 2021 at University of Connecticut. Apply ASAP for CEE  (structural engineering (MS/PhD) or Applied mechanics (PhD)) or ME (Systems and Mechanics (MS)) department. Contact: jeongho.kim [at] uconn.edu

Call for abstracts: Topic on 3D Printed Soft Materials in ASME IMECE 2021 (virtual conference)

Submitted by Kai Yu on
conference
ASME IMECE
3D printing
soft material
additive manufacturing

Dear colleagues:

We would like to invite you to submit an abstract to the topic on 3D Printed Soft Materials at the 2021 ASME IMECE, which is to be held as a virtual conference online from November 1 to November 5, 2021. This year, we are more than happy to invite Dr. Cheng Sun from Northwestern University to give an invited talk.

 

Please refer to the attached file for the scope of our topic. To submit an abstract, please

1. Go to: https://event.asme.org/IMECE

Curvature tunes wrinkling in shells

Submitted by Fan Xu on
research
hyper elasticity
finite strain
differential geometry

Transverse wrinkles usually emerge in a uniaxially stretched elastic film and can be suppressed upon further tension, which is an instability-restabilization behavior due to the nonlinear competition between stretching energy and bending energy. Here, we show that curvature can effectively and precisely tune the wrinkling localization and amplitude.

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