Non-ordinary state-based peridynamic simulation of elastoplastic deformation and dynamic cracking of polycrystal

Xin Gu, Qing Zhang, Erdogan Madenci

Research output: Contribution to journalArticle

5 Scopus citations

Abstract

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.

Original languageEnglish (US)
Article number106568
JournalEngineering Fracture Mechanics
Volume218
DOIs
StatePublished - Sep 2019

Keywords

  • Crystal plasticity
  • Dynamic fracture
  • Implicit solver
  • Non-ordinary state-based peridynamics

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

Fingerprint Dive into the research topics of 'Non-ordinary state-based peridynamic simulation of elastoplastic deformation and dynamic cracking of polycrystal'. Together they form a unique fingerprint.

  • Cite this