Effect of off - axis matrix cracking on stiffness of symmetric angle-ply composite laminates

被引：16
|
作者：
Katerelos, D. G.
McCartney, L. N.
Galiotis, C.
机构：
[1] Fdn Res & Technol Hellas, Inst Chem Engn & High Temp Chem Proc, GR-26504 Patras, Greece
[2] Natl Phys Lab, NPL Mat Ctr, Teddington TW11 0LW, Middx, England
[3] Univ Patras, Dept Mat Sci, GR-26500 Patras, Greece
来源：
INTERNATIONAL JOURNAL OF FRACTURE | 2006年 / 139卷 / 3-4期
关键词：
composite materials; matrix cracking; stiffness reduction; Raman spectroscopy; generalized plane strain model;
D O I：
10.1007/s10704-006-0100-9
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Matrix cracking models developed for cross-ply composite laminates cannot easily be applied to more complicated geometries. In this paper a detailed analysis of the effect of matrix cracking on the longitudinal Young's Modulus of a [0/45](s) plate under uniaxial tension is attempted. The theoretical approach, based on a semi-analytical generalized plane strain model, is compared to experimental data obtained by microscopic strain, measurements on a fiber sensor using the technique of laser Raman Spectroscopy. The experimental results are in a good agreement with theoretical stiffness degradation predictions obtained using the semi-analytical model.
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页码：529 / 536
页数：8
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