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首页> 外文期刊>Journal of Adhesion Science and Technology: The International Journal of Theoredtical and Basic Aspects of Adhesion Science and Its Applications in All Areas of Technology >Crack propagation analysis in composite bonded joints under mixed-mode (I + II) static and fatigue loading: a damage-based model
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Crack propagation analysis in composite bonded joints under mixed-mode (I + II) static and fatigue loading: a damage-based model

机译：混合模式（I + II）静载荷和疲劳载荷下复合材料接头的裂纹扩展分析：基于损伤的模型

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摘要

In this paper, a first step towards the definition of a unifying model based on the process zone concept has been attempted. The aim of the proposed model is to summarize the fatigue behaviour of composite bonded joints under mixed-mode (I+II) fatigue loading conditions focusing as close as possible on the actual damage mechanisms observed during the fatigue tests, which were found strongly dependent on the mode mixity. The proposed model has been verified on the experimental results obtained from double cantilever beam (DCB), end notch flexure (ENF) and mixed-mode bending (MMB) tests as well as from single-lap bonded joints. Finally, the model is successfully applied to the description of joint behaviour under static mixed-mode loading.
机译：在本文中，已经尝试了朝着基于过程区概念定义统一模型的第一步。该模型的目的是总结混合模式（I + II）疲劳载荷条件下复合粘结接头的疲劳行为，并尽可能地关注疲劳测试过程中观察到的实际损伤机理，这些损伤机理在很大程度上取决于模式混合。从双悬臂梁（DCB），端部切口挠曲（ENF）和混合模式弯曲（MMB）测试以及单搭接接头获得的实验结果中验证了所提出的模型。最后，该模型成功地应用于静态混合模式载荷下的关节行为描述。

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