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Free Edge Stresses in the Bending of Bidirectional Laminates

机译:双向层压板弯曲中的自由边缘应力

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The "local model", a stress based theory in which each layer of a laminate is considered to be a homogeneous plate, is applied to the free edge stress analysis of a bidirectional laminate subjected to pure bending. Residual thermal stresses due to processing are also considered in the analysis. Numerical results illustrate a fundamental difference between the free edge problem in bending versus the classical free edge problem under uniaxial extensional loading. Significant effects of residual stresses as well, as width-to-thickness ratio, are illustrated for plate aspect ratios ranging from a plate to a beam.
机译:“局部模型”,基于应力的理论,其中每个层叠体被认为是均匀板,应用于对经受纯弯曲的双向层压材料的自由边缘应力分析。在分析中也考虑了由于加工引起的残余热应力。数值结果说明了单轴伸展加载下弯曲与经​​典自由边缘问题的自由边缘问题之间的根本差异。对于从板到梁的板宽度比例示出了残余应力的显着效果,作为宽度到厚度比。

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