恒幅载荷下复合材料剩余刚度退化模型

宋江北; 安宗文; 汤婷; 马强; 黄涛

doi:10.19912/j.0254-0096.tynxb.2020-0562

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太阳能学报 ›› 2022, Vol. 43 ›› Issue (3) : 382-387. DOI: 10.19912/j.0254-0096.tynxb.2020-0562

恒幅载荷下复合材料剩余刚度退化模型

宋江北, 安宗文, 汤婷, 马强, 黄涛

作者信息 +

DEGRADATION MODEL OF RESIDUAL STIFFNESS OF COMPOSITE MATERIALS UNDER CONSTANT AMPLITUDE LOAD

Song Jiangbei, An Zongwen, Tang Ting, Ma Qiang, Huang Tao

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文章历史 +

摘要

在分析现有纤维增强复合材料层合板疲劳累积损伤模型的基础上,根据复合材料层合板疲劳损伤演变过程和剩余刚度退化规律,提出一种用于描述恒幅疲劳载荷作用下复合材料层合板刚度退化规律的模型。该模型适用于描述复合材料层合板的三阶段非线性刚度退化轨迹。通过T300/HT3复合材料层合板、玻璃纤维/环氧复合材料层合板以及T300/QY8911复合材料层合板试验数据对模型的有效性进行验证,结果表明,相对于现有模型,该文所提模型适用性更广、拟合优度更高,能更精确地描述复合材料层合板疲劳损伤过程中的剩余刚度退化规律。

Abstract

Based on the analysis of the existing fatigue damage accumulation models of composite laminates, a method considering fatigue damage evolution process for describing stiffness degradation of composite laminates under constant amplitude fatigue load is proposed. The proposed model is suitable for describing three-stage nonlinear stiffness degradation of composite laminates. The validity of the model is verified by T300/HT3, the test data of glass fiber/epoxy, and T300/QY8911. The results indicate that the proposed model has higher fitting goodness than the existing models and can more accurately describe the residual stiffness degradation law during the fatigue damage of composite laminates.

导出引用

宋江北, 安宗文, 汤婷, 马强, 黄涛. 恒幅载荷下复合材料剩余刚度退化模型[J]. 太阳能学报. 2022, 43(3): 382-387 https://doi.org/10.19912/j.0254-0096.tynxb.2020-0562

Song Jiangbei, An Zongwen, Tang Ting, Ma Qiang, Huang Tao. DEGRADATION MODEL OF RESIDUAL STIFFNESS OF COMPOSITE MATERIALS UNDER CONSTANT AMPLITUDE LOAD[J]. Acta Energiae Solaris Sinica. 2022, 43(3): 382-387 https://doi.org/10.19912/j.0254-0096.tynxb.2020-0562

中图分类号： TK83

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