Interlaminar fracture of multidirectional glass/epoxy laminates under mixed-mode I+II loading

被引：12
作者：
de Morais, A. B. [1 ]
Pereira, A. B. [1 ]
机构：
[1] Univ Aveiro, Dept Mech Engn, P-3810 Aveiro, Portugal
来源：
MECHANICS OF COMPOSITE MATERIALS | 2007年 / 43卷 / 03期
关键词：
delamination; mixed-mode bending; finite-element analysis; beam theory model; fracture loci;
D O I：
10.1007/s11029-007-0023-1
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
The mixed-mode I + II interlaminar fracture of multidirectional glass/epoxy laminates is investigated. Mixed-mode bending (MMB) tests were performed on specimens with delaminations in 0/theta-type interfaces, with theta varying from 0 to 90 degrees. Preliminary three-dimensional finite-elementanalyses validated the beam theory model (BTM) used for analysing experimental data. The compliances measured are in a good agreement with BTM predictions. The total critical energy release rate GC varies linearly with the mode II ratio G(II)/G, although some discrepancies are observed in the high-mode II results for the 0/45 and 0/90 specimens.
引用
收藏
页码：233 / 244
页数：12
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