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Analysis of a model of field crack mechanics for brittle materials

Submitted by Amit Acharya on

Léo Morin       Amit Acharya

(in Computer Methods in Applied Mechanics and Engineering)

A computational model for arbitrary brittle crack propagation, in a fault-like layer within a 3-d
elastic domain, and its associated quasi-static and dynamic fields is developed and analyzed. It
uses an FFT-based solver for the balance of linear momentum and a Godunov-type projection-evolution
method for the crack evolution equation. As applications, we explore the questions of equilibria
and irreversibility for crack propagation with and without surface energy, existence of strength
and toughness criteria, crack propagation under quasi-static and dynamic conditions,
including Modes I, II and III, as well as multiaxial compressive loadings.

Full-Time Position in Schlumberger- Modeling and Simulation Engineer

Submitted by Haitao Zhang on

Title: Modeling and Simulation Engineer
Category: Full-time position in industry
Employer: Schlumberger Technology Corporation
Location: United States, Texas, Sugar Land
Opening Date: 04/01/2021


Intro

Vibrations + Contact = Quadratic Nonlinearity

Submitted by oliver oreilly on

Hello,

Studies of the vibration of a rod in contact with a surface are central to a range of applications from MEMS devices to flexible ocean risers. In our latest paper,

Nate N. Goldberg and Oliver M. O'Reilly Pervasive nonlinear vibrations due to rod-obstacle contact, Nonlinear Dynamics, 2021

Talk by Prof Dennis Kochmann

Submitted by rram on

The Department of Mechanical Engineering at the Indian Institute of Science, Banglore is celebrating its 75th year by hosting distinguished speakers.

This month's talk will be delivered by Prof Dennis Kochmann (ETH Zurich).

Title: Learning from the building blocks of nature in the design of periodic architected materials

Date: Februrary 17, 2021

Time: 16:30 Indian Standard Time (06:00 New York, 12:00 Zurich,  19:00 Beijing)

Acta Mechanica Sinica (Volume 37, Issue 1, 2021) is online now!

Submitted by Acta Mechanica… on

Acta Mechanica Sinica (Volume 37, Issue 1, 2021 ) is online now!

Dear everyone!

The 1st issue in 2021 (Volume 37 Issue 1) of Acta Mechanica Sinica (AMS) is online now.

Welcome to this SCI-indexed journal http://ams.cstam.org.cn for rapid publication of your exciting results.

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Online Resource on Rotations with Rigid Body Dynamics Applications

Submitted by oliver oreilly on

Dear Colleague,

The online resource on rotations,

 http://rotations.berkeley.edu, 

has been operational now for nearly 7 years and has been recently updated with material from the literature. Among the latest additions, we note the following subjects: