期刊文献+

膨胀-劈裂组合模式下薄壁圆管的吸能性能研究 被引量:1

Study on Energy Absorption Performance of Thin-Walled Circular Tube Under Expansion-Splitting Combined Deformation Model
下载PDF
导出
摘要 结合薄壁圆管轴向压缩试验设计和数值计算,建立了该组合模式下压模结构参数与吸能性能参数之间的响应面模型,发现载荷响应量与上锥角和压模外径呈单调递增关系,但随着下锥角的增大先减小后增大,其比能量吸收率随着上下锥角和压模外径的增大而增大。依据响应面模型和相应目标函数,开展了压模结构的优化设计,获得了能够实现最优能量吸收性能的压模结构设计参数,并与渐进压溃模式下薄壁圆管的吸能性能进行了对比,结果表明在一定的压模结构设计下的组合变形模式,其吸能性能优于渐进压溃变形模式。 The response surfaces between the structural parameters of the die and the energy absorption performance parameters of the thin-walled circular tube in this combined model were established by the design of experiment and numerical calculation,it is found that the load responses is monotonically increasing with the upper conical angle and the out diameter of the die,but first decreases and the increases with the increasing of the lower conical angle.According the response surface model and the corresponding objective function,the optimized design of the die structure was carried out to achieve the optimal energy absorption performance of the circular tube,and that was compared with that of the tube under progressive collapse,the result show the energy absorption performance of the combined deformation is better than that of the progressive crushing deformation under the die of certain structural parameters.
作者 吴明泽 张晓伟 张庆明 WU Mingze;ZHANG Xiaowei;ZHANG Qingming(State Key Laboratory of Explosion Science and Technology,Beijing Institute of Technology,Beijing 100081,China)
出处 《兵器装备工程学报》 CAS 北大核心 2019年第12期171-177,共7页 Journal of Ordnance Equipment Engineering
基金 国家重点研发计划项目(2016YFC0801200) 国家自然科学基金项目(11102025)
关键词 薄壁圆管 膨胀 劈裂 响应面模型 结构优化 渐进压溃 thin-walled circular tube expansion splitting the response surface structure optimization progressive collapse
  • 相关文献

参考文献1

二级参考文献9

  • 1陈刚,陈忠富,陶俊林,牛伟,张青平,黄西成.45钢动态塑性本构参量与验证[J].爆炸与冲击,2005,25(5):451-456. 被引量:98
  • 2王仁 熊祝华 黄文彬.塑性力学基础[M].北京:科学出版社,1998..
  • 3Hancock J W,Brown D K.On the role of strain and stress state in ductile failure[J].Journal of the Mechanics and Physics of Solids,1983,31:1-24.
  • 4Mirza M S,Barton D C,Church P.The effect of stress triaxiality and strain-rate on the fracture characteristics of ductile materials[J].Journal of Materials Science,1996,31:453-461.
  • 5Bфrvik T,Hopperstad O S,Dey S,et al.Strength and ductility of weldox 460E steel at high strain rates,elevated temperatures and various stress triaxialities[J].Engineering Fracture Mechanics,2005,72:1071-1087.
  • 6Rice J R,Tracey D M.On the ductile enlargement of voids in triaxial stress fields[J].Journal of the Mechanics and Physics of Solids,1969,17:210-217.
  • 7Johnson G R,Cook W H.Fracture characteristics of three metals subjected to various strains,strain rates,temperatures,and pressures[J].Engineering Fracture Mechanics,1985,21:31-48.
  • 8Taylor G I.The use of flat-ended projectiles for determining dynamic yield stress[J].Proceedings of Royal Society:Series A,1948,194:289-299.
  • 9Joseph C F J,Martin G,Wilson L L.The use of the Taylor test in exploring and validating the large-strain,high-strain-rate constitutive response of materials[C]//Furnish M D.Shock compression of condensed matter-2001.American Institute of Physics,2002:1318-1322.

共引文献73

同被引文献4

引证文献1

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部