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

作     者：Wenjing Shi Weiping Hu Miao Zhang Qingchun Meng 

作者机构：Institute of Solid Mechanics School of Aeronautics Science and Engineering BeiHang University Beijing 100191 China 

出 版 物：《Acta Mechanica Solida Sinica》 (固体力学学报（英文版）)

年 卷 期：2011年第24卷第5期

页      面：399-410页

核心收录：

学科分类：08[工学] 081401[工学-岩土工程] 081402[工学-结构工程] 0805[工学-材料科学与工程（可授工学、理学学位）] 0802[工学-机械工程] 0814[工学-土木工程] 0701[理学-数学] 0801[工学-力学（可授工学、理学学位）] 0702[理学-物理学] 

基　　金：supported by the FanZhou Science and Research Foundation for Young Scholars 

主　　题：fiber reinforced polymer composite lamina continuum damage mechanics fatigue life prediction fiber breakage matrix cracking 

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° and 90° 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.