Journal
ENGINEERING FRACTURE MECHANICS
Volume 218, Issue -, Pages -Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.engfracmech.2019.106568
Keywords
Non-ordinary state-based peridynamics; Crystal plasticity; Implicit solver; Dynamic fracture
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Funding
- National Natural Science Foundation of China [11672101, 11372099, 51709194]
- National Key Research & Development Program of China [2017YFC1502603, 2018YFC0406703]
- China Postdoctoral Science Foundation [2019M651667]
- China Scholarship Council [201606710089]
- AFOSR [FA9550-14-1-0073]
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The peridynamic correspondence material models provide a way to convert the classical continuum constitutive models into the framework of non-ordinary state-based peridynamics (NOSB PD) with inherent capabilities for describing long-range interactions and fracture. The present study introduces the modeling approach for crystal plasticity in the framework of NOSB PD with a penalty force stabilization technique. It also provides details for numerical implementation of explicit dynamic solver and implicit quasi-static nonlinear solver for many constitutive models. The quasi-static elastoplastic deformation and dynamic cracking examples illustrate that NOSB PD crystal plasticity can capture the fine shear bands that occur naturally in deforming polycrystalline aggregates and the elastoplastic dynamic cracking of polycrystals.
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