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纤维缠绕复合材料夹芯圆柱体轴压力学模型及复合吸能机制

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纤维缠绕复合材料夹芯圆柱体轴压力学模型及复合吸能机制
Mechanical Model and Damage Mechanism of Filament Wound Composite Sandwich Cylinder Under Axial Compression Loading
投稿时间:2016-12-28
DOI:10.15918/j.tbit1001-0645.2018.06.016
中文关键词:纤维缠绕复合材料夹芯圆柱体力学模型
English Keywords:filament woundcompositesandwich cylindermechanical model
基金项目:国家自然科学基金资助项目(51479205)
作者单位E-mail
周晓松海军工程大学 舰船工程系, 湖北, 武汉 430033
梅志远海军工程大学 舰船工程系, 湖北, 武汉 430033zhiyuan_mei@163.com
张焱冰海军工程大学 舰船工程系, 湖北, 武汉 430033
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中文摘要:
为了从结构力学角度揭示纤维缠绕复合材料夹芯圆柱体在轴向压缩载荷作用下的复合吸能机制,建立了该结构的轴压力学模型,在考虑静力学平衡条件以及表层和芯材间位移协调条件的基础上,建立了表层侧向约束应力和芯材轴向压缩变形间的关系,重点分析侧向约束应力对结构损伤吸能机制的影响,探讨了表层和芯材设计参数间的影响规律.进一步开展的试验研究和破坏模式分析结果表明,该力学模型有效揭示了纤维缠绕复合材料夹芯圆柱体的复合吸能机制,指导了该结构的参数化设计.
English Summary:
In order to reveal the energy absorption mechanism of the filament wound composite sandwich cylinder in the view of structural mechanics,a mechanical model of the structure was established under axial compression loading. Considering the force equilibrium and displacement compatibility between the surface and core,the relationship between the lateral restraint stress and core compressive deformation was put forward. The influence of hoop restraint stress on the damage mechanism was analyzed and the influence rules of parametric design between the surface and core was also conducted. The results of experimental studies and failure mode analysis show that, the mechanical model can effectively reveal the energy absorption mechanism in the view of structural mechanics and guide the parametric design of the structure.
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