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.
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.
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 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
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
Please find our new post-doc opening in the http://www.legato-team.eu
Write to Dr Anina GLUMAC <anina . glumac @ uni.lu> to apply.
Check the group out here:
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.
We are currently investigating the shock response of materials using molecular dynamics (MD). This project showed us that the preparation of properly equilibrated MD models can be very challenging even for someone with a strong background in molecular modeling. Therefore, we thought of sharing some of our recent MD models with the research community. We would like to share the LAMMPS input and data files required to run MD simulation of shock wave propagation and ballistic impacts. The two MD models are shown above.
The UV cross-linking technique applied to the cornea is a popular and effective therapy for eye diseases such as keratoconus and ectatic disorders. The treatment strengthens the cornea by forming new cross-links via photochemical reactions and, in turn, prevents the disease from further developing.
