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Indexed by:期刊论文

Date of Publication:2018-09-01

Journal:STRENGTH OF MATERIALS

Included Journals:SCIE

Volume:50

Issue:5

Page Number:800-806

ISSN No.:0039-2316

Key Words:woven carbon fibers; crack propagation; fracture mode; damage; stress intensity factor

Abstract:An experimental study and numerical calculation are conducted to investigate the crack propagation in a 2D woven composite. Crack propagation tests of single-layer composite plate specimens permit this process to be directly followed. Analysis of their fracture surfaces reveals crack propagation paths, fracture mode, and damage mechanisms. The load-deflection curve represents the crack propagation as a three-stage process. The stress intensity near the crack tip is evaluated with the critical stress intensity factor numerically calculated. The results demonstrate a good agreement between the calculations and experiment.