复合材料等效弹性模量的改进混合律方法
ImprovedM ixed-M odeM ethod ofValid ElasticM odulus ofComposites
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摘要:用连续介质力学方法,建立了混合律模型,对复合材料的等效弹性模量进行了分析;提出了一种改进的 混合律方法,并给出了计算等效弹性模量的改进公式.计算实例表明,改进公式的最大误差为9%,计算曲线逼 近试验曲线,而Voight模型、Reuss模型以及Halpain-Tsai修正公式的最大误差都大于23%,它们的计算曲线与 试验曲线相距较远.Abstract:Based on the continuummechanics theory, amixedmodewas setup to investigate the valid elastic modulus of composites. An improved mixed-mode method was proposed, and the revised formula of calculating the valid elastic modulus of compositeswas given. The calculational results of the valid elasticmoduli of two composites show that the biggest error is 9% for the improved method and over23% for theVoightmode,l theReussmodel and theHalpain-Tsaimodified formula, and the difference between the calculational and experimental curves of the valid elastic moduli of the two composites is small for the improvedmethod and great for the threemodels.
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