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Buckling and post-buckling improvements of laminated composite plates using finite element method

机译:有限元方法改善复合材料层合板的屈曲和屈曲

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摘要

The improvements of buckling and post-buckling behaviours of laminated composite plates were done by changing the composite related parameters such as the level of anisotropy, thickness to width ratio and boundary condition. In recent years, shape memory alloy has been used to achieve such improvements. A study is conducted on the buckling and post-buckling improvements of composite plates due to the combined effects of composite and shape memory alloy related parameters. Shape memory alloy wires are embedded within laminated composite plates and the amount of recovery stress induced by the shape memory wires is predicted using the Brinson’s model. A geometric non-linear finite element method is used to model the buckling and post-buckling behaviours of shape memory alloy composite plates and source codes are developed to solve the model. It is found that significant improvements in buckling and post-buckling behaviours of composite plates can be attained by combining the effect of shape memory alloy and composite related parameters.
机译:通过改变各向异性水平,厚度与宽度之比和边界条件等复合材料相关参数,可以改善层压复合材料板的屈曲和后屈曲性能。近年来,已经使用形状记忆合金来实现这种改进。由于复合材料和形状记忆合金相关参数的综合作用,对复合材料板的屈曲和后屈曲改进进行了研究。形状记忆合金线嵌入层压复合板内,并且使用布林森模型预测形状记忆线引起的回复应力量。使用几何非线性有限元方法对形状记忆合金复合板的屈曲和后屈曲行为进行建模,并开发了源代码来求解该模型。已经发现,通过将形状记忆合金的效果和复合材料相关参数结合起来,可以显着改善复合材料板的屈曲和后屈曲性能。

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