fracture

Preprint here: https://www.researchgate.net/publication/333260238_An_Adaptive_Quasi-Co…

We have discovered a peculiar form of fracture that occurs in a highly stretchable silicone elastomer (Smooth-On Ecoflex 00–30). Under certain conditions, cracks propagate in a direction perpendicular to the initial pre-cut and in the direction of the applied load. In other words, the crack deviates from the standard trajectory and instead propagates perpendicular to that trajectory. The crack arrests stably, and thus the material ahead of the crack front continues to sustain load, thereby enabling enormous stretchabilities. We call this phenomenon 'sideways' and stable cracking.

A post-doctoral position is immediately available in a research group by Prof. Kyoungsoo Park at the School of Civil & Environmental Engineering, Yonsei University, Seoul, Korea. The successful applicant should have strong research background on computational fracture mechanics associated with cohesive zone modeling, contact mechanics, microstructure computation, hygro-thermo-mechanical analysis, parallel computing or related research area. Specific research direction can be discussed. If interested, please contact Dr.

I hope some of you will find our recent paper in the Journal of the Mechanics and Physics of Solids interesting. The Abaqus user element (UEL) subroutine developed to implement strain gradient plasticity theories with energetic and dissipative higher order stresses (Gudmundson 2004, Fleck and Willis 2009) can be downloaded from www.empaneda.com/codes

The role of plastic strain gradients in the crack growth resistance of metals

Emilio Martínez-Pañeda, Vikram S. Deshpande, Christian F. Niordson, Norman A. Fleck

interfacial crack initiated from a polymer notch (click here to view this YouTube video from our experiment),     read more below to submit your abstracts

Prof. Jun Xu, Dr. Scott Grutzik, and I organize one topic on “Dynamic failure of materials and structures” for 2019 ASME Congress. We invite you, your colleagues and group members to submit short abstracts before ASME’s deadline of Feb 25, 2019. More details below: 

I hope some of you may find this work interesting. We show that kinematic hardening effects play a significant role in monotonic/static fracture.

Steady-state fracture toughness of elastic-plastic solids: Isotropic versus kinematic hardening

K.J.Juul, E.Martínez-Pañeda, K.L.Nielsen, C.F.Niordson

Engineering Fracture Mechanics, 207, pp. 254-268 (2019)

Volume 207, 15 February 2019, Pages 254-268

A 1 year post Doctoral position is avalaible in France, on computational fractur mechanics. This is a join project between Univ. Paris 13 (LSPM lab), and Paris 7 (ITODYS lab).

The present postdoc subject is focused on the modeling cracking and buckling in thin films and nanostructures on stretchable substrate.

Dear Colleagues,

The SEM 2019 annual conference abstract deadline has been extended to October 24, 2018. Please see the Call for Abstracts below and consider submitting an abstract.

We invite you to submit a paper to the 2019 Society for Experimental Mechanics (SEM) Annual Meeting in one of the many sessions in the Fatigue and Fracture Track. See below for further information on these sessions, and please forward this to others who may be interested.

 This position has been filled!