Tensile behavior of fiber metal laminates with multiple holes at different temperature conditions

被引:0
|
作者
Fang, Yuting [1 ,2 ]
Sheng, Dongfa [1 ]
Lin, Zhongzhao [1 ,2 ]
Fei, Peng [3 ]
机构
[1] Southwest Forestry Univ, Sch Civil Engn, 300 Bailong Temple,Qingyun St, Kunming 650224, Peoples R China
[2] Southwest Forestry Univ, Key Lab Forest Disaster Warning & Control Yunnan P, Kunming, Peoples R China
[3] Univ South China, Sch Resources Environm & Safety Engn, Hengyang, Peoples R China
关键词
Fiber metal laminate; tensile behavior; temperature effect; hole arrangement; residual strength; failure modes; MECHANICAL-PROPERTIES; CARBON; COMPOSITES; FAILURE; PREDICTION; SIMULATION; STRENGTH;
D O I
10.1177/07316844241267339
中图分类号
TB33 [复合材料];
学科分类号
摘要
In this paper, the tensile properties of fiber metal laminates (FMLs) at 25 degrees C similar to 180 degrees C temperature conditions and different hole arrangements are researched mainly by means of experiments, theoretical model, and numerical simulation. The stress-strain curves of FMLs are obtained by extensive tensile tests and are analyzed and compared. The fracture morphology of the specimens under different temperature conditions is observed using scanning electron microscopy (SEM). Finally, a progressive damage model on the basis of the subroutine Abaqus-VUMAT is developed to analyze the damage evolution process and failure mode of FMLs. Combined with the numerical simulation results, the damage evolution process, equivalent plastic strain, and interlaminar damage of FMLs under different hole arrangements are investigated and found to be in good agreement. The phenomena such as tough nest fracture, matrix fragmentation, fiber debonding, and fiber pullout at different temperatures are observed and analyzed by SEM. The failure modes of FMLs with multiple holes at different temperatures are discussed in this paper, which provides a solution for the application of FMLs in practical engineering.
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页数:12
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