L 型碳纤维增强复合材料连接件承载力的渐进损伤分析

doi:10.12066/j.issn.1007-2861.2126

Abstract

Abstract:

The failure modes and bearing capacities of L-type carbon fibre reinforced composite connectors (CFRCC) were studied through experimental testing and computational simulation. The results demonstrated the following. ① Delamination at the corner and matrix damage around bolt holes were the dominant failure modes of L-type CFRCC under tensile loading. ② Comparing the different combinations of two strength failure criteria and two material degradation criteria revealed that the combination of mixed strength failure criteria and the Camanho-Mathews stiffness degradation criteria was more suitable for analysing the progressive damage to the connectors. ③ The predictions from the finite element simulation were in good agreement with the experimental results, and the relative error of the bearing capacity was 9.4%. The strategy of "design-test-simulation-prediction-validation" and the results obtained in this study may provide reliable guidance for the design of L-type CFRCC.

Key words: carbon fibre reinforced composite (CFRC), L-type connector, failure criteria, progressive failure analysis, finite element analysis

CLC Number:

TB332

DU Yapeng, HU Xiaoyu, CHU Haijian. Progressive damage analysis of the bearing capacity of L-type carbon fibre reinforced composite connectors[J]. Journal of Shanghai University（Natural Science Edition）, 2021, 27(2): 325-335.

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References 21

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Progressive damage analysis of the bearing capacity of L-type carbon fibre reinforced composite connectors

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