【摘要】 本文将基于小参数渐近展开和摄动方法的均匀化理论与有限元方法结合起来应用于三维编织复合材料弹性本构的数值模拟。通过对三维编织结构等效模量的数值计算 ,结果表明本文的方法可得到较为准确的等效模量 ,并较其它解法大大降低了计算量。更多还原

【Abstract】 A perturbational method based homogenization method is formulated to simulate the constitutive properities of three-dimenisonal braided composite materials by means of finite element models.The numerical tests of three dimensional braided composite structures are presented to show that more accurate results of effective modulus are obtained and little computer time cost comparing to other numerical methods.更多还原