fracture

a possible seminar on friction as fracture

Submitted by Mike Ciavarella on Fri, 10/30/2026 - 20:16

Dear colleague,

I am preparing a seminar that I will give at several universities, and I would be glad to offer it to your group as well, either online or, if you are able to invite me, in person.

The seminar is about recent theories of friction and frictional contact, viewed as a fracture problem. In the "Griffith friction" picture the edge of the stick zone is treated as a shear crack, and this explains why static friction depends on load, size and roughness. It covers:

fatigue and fracture world whatsup chat

Submitted by Mike Ciavarella on Sat, 10/17/2026 - 05:42

research

Fatigue

fracture

Dear all,

[Filled] Postdoctoral opening on computational study of fatigue at McMaster University (Canada)

Submitted by Blaise Bourdin on Sun, 08/30/2026 - 15:17

job

fracture

phase field modelling

Update: The positions been filled.

I have an opening for a Postdoctoral Fellow working on phase-field computational studies of fracture and fatigue in Ti alloys.

Candidates must have a solid background in applied mathematics, solid mechanics, and computational science. Prior knowledge of phase-field methods is an asset but not strictly required. Experience dealing with large scale computing, high-performance computing, and high performance clusters is a must.

USACM Short Course: The Phase-Field Approach to Brittle Fracture: Theory and Numerical Implementation: August 10-13, 2026

Submitted by John E. Dolbow on Tue, 06/30/2026 - 20:18

computational mechanics

August 10-13, 2026

Live Online

Instructors: Professor John Dolbow and Professor Oscar Lopez-Pamies

An asymptotic model of vibroadhesion

Submitted by Antonio Papangelo on Mon, 03/31/2025 - 10:05

A compliantly fixed hemispherical indenter in adhesive contact with an elastic sample firmly bonded to a rigid base is considered under the assumption that the rigid base undergoes small-amplitude high-frequency normal (vertical) oscillations. A general law of the rate-dependent JKR-type adhesion is assumed, which relates the work of adhesion to the contact front velocity. Using the Bogoliubov averaging approach in combination with the method of harmonic balance, the leading-order asymptotic model is constructed for steady-state vibrations.

comment on a recent Nature paper on nucleation of sliding by Fineberg's group

Submitted by Mike Ciavarella on Sun, 01/19/2025 - 04:05

Dear colleagues

Postdoctoral fellowship in Computational Fracture Mechanics at Duke

Submitted by John E. Dolbow on Thu, 12/05/2024 - 15:16

job

fracture

I am happy to announce that a postdoctoral fellowship is available in the Dolbow Research Group at Duke University, working in the area of computational fracture mechanics. The fellowship provides the opportunity to work on an emerging class of complete fracture models that incorporate the three ingredients that are necessary to be predictive with elastic brittle materials: their elasticity, their fracture toughness, and their strength.

Classical variational phase-field models cannot predict fracture nucleation

Submitted by John E. Dolbow on Wed, 09/04/2024 - 14:36

by Oscar Lopez-Pamies, John E. Dolbow, Gilles A. Francfort, and Chris J. Larsen

Abstract

Quenched disorder and instability control dynamic fracture in three dimensions

Submitted by Eran Bouchbinder on Fri, 08/30/2024 - 05:48

out-of-plane structures

mirror-mist-hackle transitions

branching

limiting velocity

disorder

In this work, we show that the combination of material quenched disorder (of finite strength/amplitude and correlation length) and a 2D tip-splitting instability (that gives rise to extra fracture surfaces) is at the heart of the spatiotemporal dynamics of cracks in 3D. Specifically, it is shown to account for the widely observed limiting (terminal) velocity of cracks, mirror-mist-hackle sequence of morphological transitions, crack macro-branching and a 3D-to-2D transition, out-of-plane crack front waves and the properties of micro-branches.