A DAMAGE MECHANICS MODEL FOR FATIGUE LIFE PREDICTION OF FIBER REINFORCED POLYMER COMPOSITE LAMINA

被引：0
|
作者：
Shi, Wenjing [1 ]
Hu, Weiping [1 ]
Zhang, Miao [1 ]
Meng, Qingchun [1 ]
机构：
[1] BeiHang Univ, Sch Aeronaut Sci & Engn, Inst Solid Mech, Beijing 100191, Peoples R China
来源：
ACTA MECHANICA SOLIDA SINICA | 2011年 / 24卷 / 05期
关键词：
fiber reinforced polymer composite lamina; continuum damage mechanics; fatigue life prediction; fiber breakage; matrix cracking; FAILURE;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A damage mechanics fatigue life prediction model for the fiber reinforced polymer lamina is established. The stiffness matrix of the lamina is derived by elastic constants of fiber and matrix. Two independent damage degrees of fiber and matrix are introduced to establish constitutive relations with damage. The damage driving forces and damage evolution equations for fiber and matrix are derived respectively. Fatigue tests on 0 degrees and 90 degrees unidirectional laminates are conducted respectively to identify parameters in damage evolution equations of fiber and matrix. The failure criterion of the lamina is presented. Finally, the life prediction model for lamina is proposed.
引用
收藏
页码：399 / 410
页数：12
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