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杆中嵌入薄板的应力波传播行为
  • ISSN号：0254-7805
  • 期刊名称：《固体力学学报》
  • 时间：0
  • 分类：TU528.01[建筑科学—建筑技术科学] TD235.1[矿业工程—矿井建设]
  • 作者机构：[1]西北工业大学航空学院,西安 710072, [2]中国工程物理研究院总体工程研究所,绵阳621900
  • 相关基金：国家自然科学基金重大研究计划重点基金项目（90405016）资助.
作者： 毛勇建[1,2], 李玉龙[1]
关键词： 应力波, 一维应力波理论, 数值模拟, 分离式Hopkinson压杆, stress wave, one-dimensional stress wave theory,numerical simulation,split Hopkinson pressure bar （SHPB）
中文摘要：

采用一维理论分析和二维有限元模拟，研究了杆中嵌入薄板的应力波传播行为．首先根据一维弹性应力波理论，推导了反射波，透射波以及板中应力的表达式．结合算例，分析了薄板厚度对应力波传播的影响，然后采用有限元方法，验证了一维理论分析结果，同时也研究了不同界面处理方式对结果的影响．结果表明板越薄，对应力波传播的影响越小，薄板中应力越能真实地反映杆中的应力状态；在SHPB实验中，嵌入薄片／薄膜传感器测量微弱应力信号是可行的．

英文摘要：

By one-dimensional theoretical analysis and： two-dimensional finite element simulation, the stress wave propagation through a thin plate sandwiched between two bars is investigated. Firstly, the ex- pressions of reflected and transmitted waves were derived by the theory of one-dimensional elastic stress wave. Then examples were used to analyze the influences of plate thickness on wave propagation. Secondly, finite element simulations were performed and the results agree with the one-dimensional analysis. Also, the influences of different plate-bar interactions on wave propagation were studied in the numerical simula- tions. The results show that..the thinner the plate is,the less the wave propagation is influenced; the thin- ner the plate is,the better the stress in plate agrees with the stress in the bars; and thin plate/film transducers can be used to measure weak stress signals in SHPB tests.

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期刊信息
  • 《固体力学学报》
  • 北大核心期刊（2011版）
  • 主管单位:中国科学技术协会
  • 主办单位:中国力学学会
  • 主编：方岱宁
  • 地址：武汉华中科技大学南一楼西北508室
  • 邮编：430074
  • 邮箱：amss@mail.hust.edu.cn
  • 电话：027-87543737
  • 国际标准刊号：ISSN：0254-7805
  • 国内统一刊号：ISSN：42-1250/O3
  • 邮发代号:38-44
  • 获奖情况:
  • 获得第二届全国优秀科技期刊三等奖,中国期刊方阵“双效”期刊
  • 国内外数据库收录:
  • 美国化学文摘（网络版）,荷兰文摘与引文数据库,日本日本科学技术振兴机构数据库,中国中国科技核心期刊,中国北大核心期刊（2004版）,中国北大核心期刊（2008版）,中国北大核心期刊（2011版）,中国北大核心期刊（2014版）,中国北大核心期刊（2000版）
  • 被引量:6186