research

Over the past decade, there has been a growing interest in applying machine learning techniques to problems in mechanics. From material design optimization, manufacturing, to multiscale modelling, to real time prediction and autonomy, data mining and analysis, machine learning techniques have had a massive impact in the field.

apparent paradox: for a sliding flat punch on a viscoelastic halfspace, friction is zero or not?

Submitted by Mike Ciavarella on Thu, 11/09/2023 - 09:43

research

friction

viscoelasticity

dear Imechanica friends

here is an apparent paradox: for a sliding flat punch on a viscoelastic halfspace, friction is zero or not? Certainly there seems to be viscoelastic dissipation, but the pressure is also normal to dispacements, so am I missing something obvious here? Any help is welcome!

See https://www.researchgate.net/publication/375497066

Thanks

Mike

Journal Club for November 2023: Top-down multi scale damage mechanics

Submitted by arsonc on Wed, 11/01/2023 - 00:17

Chloé Arson, Ph.D.

Professor, Cornell University School of Civil and Environmental Engineering

A Hidden Convexity in Continuum Mechanics, with application to classical, continuous-time, rate-(in)dependent plasticity

Submitted by Amit Acharya on Sun, 10/29/2023 - 13:19

research

Amit Acharya

A methodology for defining variational principles for a class of PDE models from continuum mechanics is demonstrated, and some of its features explored. The scheme is applied to quasi-static and dynamic models of rate-independent and rate-dependent, single crystal plasticity at finite deformation.

Preprint: A Dimensionally-Reduced Nonlinear Elasticity Model for Liquid Crystal Elastomer Strips with Transverse Curvature

Submitted by Kaushik Dayal on Mon, 10/23/2023 - 14:11

research

preprint

This article will appear in Soft Matter (https://doi.org/10.1039/D3SM00664F)

A Dimensionally-Reduced Nonlinear Elasticity Model for Liquid Crystal Elastomer Strips with Transverse Curvature

Kevin LoGrande (1, 2), M. Ravi Shankar (3) and Kaushik Dayal (1, 4, 5)

1Department of Civil and Environmental Engineering, Carnegie Mellon University

2Computation and Information Sciences Directorate, CCDC Army Research Lab

PhD Openings on Multiscale Materials Modeling in University of Kentucky

Submitted by xingshengsun on Mon, 10/23/2023 - 14:01

research

Greetings from Lexington, Kentucky! We are an interdisciplinary research group in the Department of Mechanical and Aerospace Engineering at the University of Kentucky. We specialize in the modeling, computation and simulation of materials across multiple length- and time-scales. Our missions include advancing fundamental understanding of materials under different operating environments and making contributions to material design and discovery for diverse applications.

Online seminar "Strain Gradient Plasticity based on saturating internal variables” by Samuel Forest

Submitted by Lorenzo Bardella on Thu, 10/19/2023 - 06:28

strain gradient plasticity

Size effects

finite deformations

On Tuesday 24th October at 3:00 pm (Italian time) Samuel Forest will offer the seminar “Strain gradient plasticity based on saturating internal variables” at the Department of Civil, Environmental, Architectural Engineering and Mathematics of the University of Brescia (Italy). Here attached please find the abstract of the seminar.

Anyone may directly join online through Google Meet at

https://meet.google.com/rad-ehjg-ker