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中文摘要：
采用浮动的拉伸与压缩生长参考区间法讨论材料的拉伸与压缩性能差别对最优拓扑的影响.材料的拉伸与压缩性能差别包含两个方面,其一,基础材料的拉伸杨氏模量与压缩杨氏模量存在差异;其二,基础材料在拉伸变形与在压缩变形下生长的参考应变区间不同.两者对结构最优拓扑的影响具有等效性.数值算例证明了这一等效性.数值算例进一步表明,对于一个给定的设计域,基础材料的拉伸与压缩性能差异对结构最优拓扑影响很大.因此,考虑结构及材料具有不同拉压性能时的拓扑优化工作具有明显的工程意义.
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