research

By Yuzhen Chen, Lihua Jin

Twenty years in since their introduction, it is now plain that the regularized formulations dubbed as phase-field of the variational theory of brittle fracture of Francfort and Marigo (1998) provide a powerful macroscopic theory to describe and predict the propagation of cracks in linear elastic brittle materials under arbitrary quasistatic loading conditions. Over the past ten years, the ability of the phase-field approach to also possibly describe and predict crack nucleation has been under intense investigation.

Dear colleagues,

This paper on  comparison between frontal and bulk polymerization of polymer matrix compositres using a non-dimensional solver is published in Composite Science and Technology. If you would like to take a look, full paper is avaiable at the publisher and Researchgate.

Abstract:

https://doi.org/10.1039/D0TB00896F It is my privilege and honor to be highlighted as the Journal of Material Chemistry B's Emerging Investigators for 2020. Together with our group's young budding scientists, Chenxi Zhai, Tianjiao Li, and Haoyuan Shi, we review the discovery and design of next-generation bio-inspired materials by harnessing the virtual space in materials design: materials omics (materiomics), materials informatics, computational modelling and simulations, artificial intelligence (AI), and big data.

This is the preprint of an article that will appear in Soft Matter (doi.org/10.1039/D0SM00845A)

Statistical Mechanical Analysis of the Electromechanical Coupling in an Electrically-Responsive Polymer Chain

Matthew Grasinger and Kaushik Dayal
Carnegie Mellon University

The USACM has established a virtual seminar series that will run for six weeks over the course of this summer.  Exact dates and times will vary each week, but a full listing of the speakers is available here:

https://www.usacm.org/seminar-series

The series features young computational mechanicians from across the US.  The talks are an opportunity for these young scientists to showcase their research activities during a period in which so many conferences and meetings are being cancelled or postponed.  

https://www.researchgate.net/publication/341816480_A_nonlocal_physics-i…

Dear iMechanica Community: 

Dear iMechanicians,

I hope the present work is of interest to you. We present a new formulation for resolving the electrochemical-diffusion interface in hydrogen embrittlement modelling 

E. Martínez-Pañeda, A. Díaz, L. Wright, A. Turnbull

Generalised boundary conditions for hydrogen transport at crack tips

Corrosion Science 173, 108698 (2020)

https://www.sciencedirect.com/science/article/pii/S0010938X20305345

Open Access
A. Emdadi, J. Watts, W.G. Fahrenholtz, G.E. Hilmas, and M. Asle Zaeem. Predicting effective fracture toughness of ZrB2 based ultra-high temperature ceramics by phase-field modeling.  Materials & Design 192 (2020) 108713 (11 pages).

For researchers and industrialists being active and/or interested in finite element modeling of machining operations and surface integrity:

https://link.springer.com/article/10.1007/s00170-018-1759-6