Crack arrest and propagation in impact loaded shock resistant PMMA: mesh-free numerical simulation
Faculty of Engineering, National Defence University of Malaysia, 57000 Kuala Lumpur, Malaysia
2 Institut Clément Ader, Université de Toulouse, ISAE-SUPAERO, MINES ALBI, UPS, INSA, CNRS, 31400 Toulouse, France
* Corresponding author: firstname.lastname@example.org
Published online: 9 September 2021
The use of shock resistant RT-PMMA in engineering structures potentially subject to accidental overloading requires an evaluation of its crack arrest capability under impact loading. Based on experimental results obtained from a series of Kalthoff and Winkler (KW)-type impact tests, the present study aims at numerically reproducing the conditions for brittle-like crack initiation and propagation in impact-loaded RT-PMMA. For that purpose, three-dimensional SPH numerical simulations were conducted and the performance of various failure criteria was evaluated. The numerical model together with a combination of stress- and strain- dependent failure criteria were shown to fairly reproduce the experimental results in terms of finite crack advance and orientation.
© The Authors, published by EDP Sciences, 2021
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