Crack growth in glass matrix composite reinforced by long SiC fibres

被引：6

作者：

Kotoul, Michal ^{[1
]}

Vyslouzil, Tomas ^{[2
]}

Boccaccini, Aldo R. ^{[3
]}

Dlouhy, Ivo ^{[4
]}

机构：

[1] Brno Univ Technol, Dept Solid Mech, Brno 61669, Czech Republic

[2] Jan E Purkyne Univ, Usti Nad Labem 40096, Czech Republic

[3] Univ London Imperial Coll Sci Technol & Med, Dept Mat, London SW7 2BP, England

[4] ASCR, Inst Phys Mat, Brno 61662, Czech Republic

来源：

THEORETICAL AND APPLIED FRACTURE MECHANICS | 2008年 / 49卷 / 02期

关键词：

brittle matrix composites; SiC fibres; Chevron-notch specimen; crack bridging; R-curve modelling; weight functions;

D O I：

10.1016/j.tafmec.2007.11.001

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Theoretical and experimental work are made for bridged cracks in chevron-notched three point bend specimens made of glass matrix composite reinforced by long SiC fibres. The fracture toughness (K(IC)) values are determined using the chevron-notch technique and compared with the theoretical predictions based on micromechanical analysis exploiting weight functions. The weight functions for orthotropic material are obtained numerically by means of detailed FEM analysis using the ANSYS package and they are further used together with appropriate bridging models for the theoretical prediction of the R-curve behaviours typical of the investigated composites. (c) 2007 Elsevier Ltd. All rights reserved.

引用

页码：158 / 170

页数：13

共 22 条

[1] Strain and hysteresis by stochastic matrix cracking in ceramic matrix composites [J].