EML Webinar on 9 December 2020 will be given by Jian Ping Gong, Hokkaido University. Discusion Leader: Rong Long, University of Colorado.
Title: Self-Growing and Strengthening of Double Network Hydrogels by Mechanical Training
Time: 8 am Boston, 1 pm London, 2 pm Paris, 9 pm Beijing on 9 December 2020
This work addresses the determination of yield surfaces for geometrically exact elastoplastic rods. Use is made of a formulation where the rod is subjected to an uniform strain field along its arc length, thereby reducing the elastoplastic problem of the full rod to just its cross-section. By integrating the plastic work and the stresses over the rod's cross-section, one then obtains discrete points of the yield surface in terms of stress resultants. Eventually, Lamé curves in their most general form are fitted to the discrete points by an appropriate optimisation method.
Dear iMechanicians, I hope that our latest JMPS paper is of interest to you. We show how the phase field paradigm can be extended to model localised corrosion (aqueous electrolyte-solid interface) and the associated damage mechanisms.
C. Cui, R. Ma, E. Martínez-Pañeda. A phase field formulation for dissolution-driven stress corrosion cracking. Journal of the Mechanics and Physics of Solids 147, 104254 (2021)
https://www.sciencedirect.com/science/article/pii/S0022509620304622
A central tool of nonlinear anelasticity is the multiplicative decomposition of the deformation tensor that assumes that the deformation gradient can be decomposed as a product of an elastic and an anelastic tensor. It is usually justified by the existence of an intermediate configuration. Yet, this configuration cannot exist in Euclidean space, in general, and the mathematical basis for this assumption is on unsatisfactory ground.
Excited to announce that Anthony Lau and I are editing a special issue for Bioengineering (ISSN 2306-5354)- Pubmed Indexed - Quantification of Biological and Mechanical Changes Due to Radiation Exposure. Deadline for manuscript submissions: 30 June 2021.
Link : https://www.mdpi.com/journal/bioengineering/special_issues/radiat_expos…
Special Issue Editors
3D Printing of Batteries: Fabrication, Materials and Challenges
Yaokun Pang, Changyong Cao*
Laboratory for Soft Machines & Electronics, Michigan State University
1. Introduction
Smart soft materials, which can flexibly respond to external multi-physics stimuli, have attracted considerable attention over the past few years. Here, we present tunable wrinkling patterns in cylindrical core-shell systems under thermal load via the orientation of director in nematic liquid crystal polymer (LCP). To quantitatively analyze mechanical behavior and morphological evolution of LCP core-shell cylinders, we develop a core-shell model that accounts for director-induced anisotropic spontaneous strains.
EML Webinar on November 18, 2020 will be given by Professor Vikram Deshpande, The University of Cambridge. Discussion leader: Professor Lihua Jin, UCLA
Title: Ballistic and blast response of structural materials: lessons from architecting materials
Time: 7 am California, 9:30 am Boston, 2:30 pm London, 10:30 pm Beijing on November 18, 2020
My group at Peking University proposed a novel mechano-chemical continuum model based on the framework of thermodynamics that can describe the microstructural evolution in metallic glass, and connect it with the macroscopic plastic deformation. The model successfully simulated the shear band instability and dilatancy effects of metallic glass under uniaxial tension and simple shear.
