Crack pattern in ceramics subject to thermal shock

New paper on fracture in elastic - perfectly plastic materials

A new article based on the algorithm and code implemented by E. Tanné in his thesis (Tanné, 2017) has been accepted in Computer Methods in Applied Mechanics and Engineering<&nbsp>(Brach, Tanné, Bourdin, & Bhattacharya, 2019).

One of the interesting features of this paper is the identification of pinning of cracks due to the interaction of plastic and fracture dissipation in a homogeneous material!

Crack, plastic strain and stress evolution between two successive time steps showing pinning of a crack tip in a homogeneous elastic - perfectly plastic material. Crack, plastic strain and stress evolution between two successive time steps showing pinning of a crack tip in a homogeneous elastic - perfectly plastic material.

This work was supported in part by a a joint grant from the National Science Foundation (Grant No. DMS-1535083 and 1535076) under the Designing Materials to Revolutionize and Engineer our Future (DMREF).

References

  1. Tanné, E. (2017, December). Variational phase-field models from brittle to ductile fracture: nucleation and propagation (PhD thesis). Université Paris-Saclay, École Polytechnique.
  2. Brach, S., Tanné, E., Bourdin, B., & Bhattacharya, K. (2019). Phase-field study of crack nucleation and propagation in elastic - perfectly plastic bodies. Comp. Meth. Appl. Mech. Engng.

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