Study of the Kalthoff–Winkler experiment using an ordinary state-based peridynamic model under low velocity impact

Js Guo,Wc Gao

doi:10.1177/1687814019852561

Abstract

To overcome the limitation of constant Poisson’s ratio in bond-based peridynamics, an ordinary state-based peridynamic (OSB PD) model was applied to simulate dynamic crack propagation in Kalthoff–W...

Highlights

Fracture and failure analysis has always been one of the major concerns in theoretical studies and engineering applications
For target plate made of steel, the failure mode transition can be observed when the strain rate varies from low to high, the crack form failure translating to adiabatic shear band (ASB) form, because the latter has a higher capability of energy
Within the late time effect stage, the crack propagation path after the Mode II crack ends; in this stage the pure Mode II loading condition disappeared. To illustrate how these three stages are defined, a wave propagation analysis is conducted, which is consistent with the essence of the loading edge cracks by edge impact (LECEI) experiment, that is, the displacement associated with stress wave field generates a Mode II loading conditions at the crack tips

Summary

Introduction

Fracture and failure analysis has always been one of the major concerns in theoretical studies and engineering applications. Keywords Ordinary state-based peridynamic model, dynamic shear mode II fracture, effective crack propagation path, wave propagation analysis An OSB PD model was applied to study dynamic shear failure and crack propagation of LECEI problem.

Objectives

Results

Conclusion