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MicroStructPy: Generation of statistically representative microstructures with direct grain geometry control

Submitted by Julian J. Rimoli on

I would like to share an article that was recently published in CMAME.

It is about MicroStructPy, a very flexible microstructure generator able to represent various statistics for microstructures with multiple phases. It works in 2D and 3D and you can provide, for each phase, grain size distributions, volume fraction, elongation and orientation distribution for elongated grains, etc.

A residual stiffness-based model for the fatigue damage of biological soft tissues

Submitted by Hai Dong on

Biologically-derived and chemically-treated collagenous tissues such as glutaraldehyde-treated bovine pericardium (GLBP) are widely used in many medical applications. The long-term cyclic loading-induced tissue fatigue damage has been identified as one of the primary factors limiting the durability of such medical devices and an in-depth understanding of the fatigue behaviors of biological tissues is critical to increase device durability.

Models for peristaltic locomotion in soft robots and worms

Submitted by oliver oreilly on

Dear Colleague,

I'm pleased to announce the latest paper from my research group (coauthored with Evan Hemingway (PhD 2020)): 

Continuous models for peristaltic locomotion with application to worms and soft robots

has just been published in Biomechanics and Modeling in Mechanobiology. Here's a simulation of the model:

@UCBDynamicsLab

Thermodynamics 2.0 Conference Presentation

Submitted by Cemal Basaran on

Here is a Youtube video link to my recent lecture on the Unification of Newton's Laws and Thermodynamics' Laws at the Thermodynamics 2.0 Conference on June 22-24, 2020.

https://lnkd.in/dZmfqrE

 

Electrical contact resistance and its dependence on applied pressure

Submitted by Dr. Hanaor - D… on

The relationships between surface roughness, contact pressure and contact resistance are studied in this work published three years ago.

It is imporant to distinguish between the different conduction mechanisms acting at contacts at different scales, in order to better understand how surface structure and surface chemistry can alter the behaviour of electrical contacts

USACM Virtual Seminar by Manuel Rausch, the University of Texas

Submitted by John E. Dolbow on

The USACM is happy to announce a virtual seminar this week on Thursday, July 9th at 3pm Eastern.  The title of the seminar is "Image- and Experiment-based Modeling of the Forgotten Right Side: Right Ventricle, Tricuspid Valve, and Venous Blood Clot".  An abstract of the talk is available here:

https://unsacm.memberclicks.net/assets/docs/Rausch_2020.07.09_2pm.pdf

We have a number of seats available to anyone interested.  We just ask attendees to register at this page:

keep reading-1

Submitted by Bin Wang on

Design of robust superhydraphobic surfaces, Dehui Wang, Zuankai Wang, Robin H.A. Ras, Xu Deng, et al., Nature, 2020

Superhydrophobic surfaces have promising applications in various medical and engineering applications; however, these surfaces, either via physical and/or chemical methods, suffer from one major flaw- extremely vulnerable to mechanical damage, so lose superhydrophobicity easily in practice.

How to include temperature effects on the shear rates in Dr. Huang's crystal plasticity code

Submitted by rctron on

I am using Dr. Huang's crystal plasticity code for an adiabatic process where temperature increase due to deformation need to be calculated. Dr. Huang's CP UMAT code does not consider the temperature effect of shear rate or hardening. Is there a way to include temperature effects in the current UMAT code?

http://www.columbia.edu/~jk2079/Kysar_Research_Laboratory/Single_Crysta…