Failure Analysis of Composite Pinned Joints Based on Continuum Damage Mechanics

Author:

Tuo Hongliang,Ma Xiaoping,Lu Zhixian

Abstract

The paper conducted bearing tests on composite pinned joints with four different stacking sequences. The bearing strength and bearing chord stiffness were obtained. The influence of stacking sequences on failure modes, bearing strength and bearing chord stiffness was discussed. Based on continuum damage mechanics, a three-dimensional finite element model of composite pinned joint under bearing load was built, where the maximum strain criterion was employed for initiation and bi-liner damage constitutive relation for revolution of fiber damage, while the physical-based Puck criterion was used for matrix damage initiation, and matrix damage revolution depended on the effective strain on the fracture plane. The failure mode, bearing strength and bearing chord stiffness of composite pinned joint were discussed with this model under which the non-linear shear behavior and in-situ strength effects were considered. Good agreements between test results and numerical simulations validates the accuracy and applicability of the finite element model.

Publisher

EDP Sciences

Subject

General Engineering

Cited by 4 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. Damage behavior and mechanical property investigation of CFRP/CFRP washer-bushing riveted joints;Xibei Gongye Daxue Xuebao/Journal of Northwestern Polytechnical University;2023-12

2. Study on failure of single-bolt double-lap composite joints based on test and numerical emulation;Xibei Gongye Daxue Xuebao/Journal of Northwestern Polytechnical University;2023-06

3. Failure analysis and experimental study on bolted composite joints based on continuum damage mechanics;Composite Structures;2023-01

4. Progressive Failure Analysis and Experiment Research of the Composite Bolted Connection;Journal of Physics: Conference Series;2021-03-01

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