A combined high and low cycle fatigue progressive damage model for composite laminates considering the effect of loading interaction

IF 9.8 1区材料科学 Q1 MATERIALS SCIENCE, COMPOSITES

Composites Science and Technology Pub Date : 2025-08-05 DOI:10.1016/j.compscitech.2025.111316

Zhongyu Wang, Tao Zheng, Li Zhang, Zhanguang Chen, Jindi Zhou, Licheng Guo

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Abstract

A fatigue progressive damage model considering the loading interaction is introduced to predict the combined high and low cycle fatigue (CCF) life and residual fatigue properties of composite laminates. This model incorporates fatigue failure criteria, fatigue damage evolution, residual property degradation and a normalized fatigue life model. By considering the interaction between low cycle fatigue (LCF) and high cycle fatigue (HCF), the cumulative fatigue damage under the CCF loading is calculated, and the models for residual stiffness and strength are improved accordingly. A comprehensive fatigue simulation procedure is established to perform equivalent treatment on the combined fatigue loads and calculate the fatigue life. Experimental tests on LCF and CCF are carried out to validate the accuracy of the proposed model, and the simulated results demonstrate good consistency with the experimental results. Moreover, the key parameters in CCF, such as the stress amplitude ratio of CCF, frequency ratio of CCF and stress ratio of LCF, are discussed in terms of their effects on fatigue life and residual stiffness.

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考虑载荷相互作用影响的复合材料层合板高低周疲劳累进损伤模型

提出了考虑载荷相互作用的疲劳渐进损伤模型，用于预测复合材料层合板的高、低周联合疲劳寿命和残余疲劳性能。该模型结合了疲劳失效准则、疲劳损伤演化、残余性能退化和归一化疲劳寿命模型。考虑低周疲劳和高周疲劳的相互作用，计算了CCF载荷下的累积疲劳损伤，并对残余刚度和强度模型进行了改进。建立了综合疲劳模拟程序，对复合疲劳载荷进行等效处理，计算疲劳寿命。在LCF和CCF上进行了实验测试，验证了模型的准确性，仿真结果与实验结果吻合良好。讨论了CCF的关键参数CCF的应力幅比、频率比和LCF的应力比对疲劳寿命和剩余刚度的影响。

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来源期刊

Composites Science and Technology 工程技术-材料科学：复合

CiteScore

16.20

自引率

9.90%

发文量

611

审稿时长

33 days

期刊介绍： Composites Science and Technology publishes refereed original articles on the fundamental and applied science of engineering composites. The focus of this journal is on polymeric matrix composites with reinforcements/fillers ranging from nano- to macro-scale. CSTE encourages manuscripts reporting unique, innovative contributions to the physics, chemistry, materials science and applied mechanics aspects of advanced composites. Besides traditional fiber reinforced composites, novel composites with significant potential for engineering applications are encouraged.