A multi-area fatigue damage model of composite honeycomb sandwich panels under three-point bending load

被引：17
作者：
Ma, Mingze [1 ]
Yao, Weixing [2 ]
Jiang, Wen [1 ]
Jin, Wei [3 ]
Chen, Yan [3 ]
Li, Piao [1 ]
机构：
[1] Nanjing Univ Aeronaut & Astronaut, State Key Lab Mech & Control Mech Struct, Nanjing 210016, Peoples R China
[2] Nanjing Univ Aeronaut & Astronaut, Key Lab Fundamental Sci Natl Def Adv Design Techn, Nanjing 210016, Peoples R China
[3] Chengdu Aircraft Design Inst, Struct Strength Dept, Chengdu 610092, Peoples R China
来源：
COMPOSITE STRUCTURES | 2021年 / 261卷
关键词：
Composite sandwich panels; Fatigue damage; Three-point bending test; IMPACT RESPONSE; BEAMS; BEHAVIOR; CORE; FOAM;
D O I：
10.1016/j.compstruct.2021.113603
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
The fatigue damage of composite sandwich panels is divided into two parts: the face sheet damage and the core damage. Both the two kinds of damage cause the performance degradation of panels, however only the core damage results in the ultimate failure. In this paper, a fatigue damage model of the face sheet and the core is proposed and three-point bending tests are carried out to obtain the deflection evolution curves. With the proposed model, the fatigue damage can be predicted accurately, which proves the validity of the fatigue damage model proposed in this paper.
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页数：8
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