球形孔泡沫铝合金压缩性能与理论模型Compressive behavior of spherical pore Al alloy foam and its theoretical model
王展光,尚金堂,何思渊,何德坪,单建
摘要(Abstract):
研究了孔隙率低于65%的球形孔泡沫铝合金的单轴压缩应力应变曲线、吸能能力和吸能效率,并与多面体形孔泡沫铝合金比较,表明球形孔使力学性能有较大提高。采用球形自洽模型研究了球形孔泡沫铝合金的屈服应力与孔隙率关系,与实验结果吻合良好,表明该模型可以有效地预测球形孔泡沫铝合金的屈服强度。
关键词(KeyWords): 球形孔泡沫铝合金;球形自洽模型;屈服应力
基金项目(Foundation): 国家重点基础研究发展计划(2006CB601201);; 国家自然科学重点基金(No50231010);; 国家自然科学面上基金(No50471031)、(No50081002)(No19982001)
作者(Author): 王展光,尚金堂,何思渊,何德坪,单建
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