烘烤硬化对于一种钢板材动态拉伸本构方程以及碰撞安全性的影响
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- 英文论文题名：The Effects of Bake-hardening for a Steel Sheet Material on the Dynamic Tensile Constitutive Equation and Impact Safety
- 论文作者：徐莉 ; 邓高涛 ; 侯聚英 ; 王金玉 ; 陈大年
- 英文论文作者：Xu Li ; Deng Gaotao ; Hou Juying ; Wang Jinyu ; Chen Danian ; JMC Product Development & Technical Center ; JMC Purchasing Center ; Mechanics and Materials Science Research Center ; Ningbo University
- 年：2016
- 作者机构：江铃汽车股份有限公司产品开发技术中心;江铃汽车股份有限公司采购中心;宁波大学力学与材料科学研究中心;
- 论文关键词：动态拉伸试验 ; 动态拉伸本构方程 ; 烘烤硬化 ; 数值模拟 ; HC220B钢
- 英文论文关键词：dynamic tensile tests ; dynamic tensile constitutive equation ; bake-hardening ; numerical simulation ; HC220B steel
- 会议召开时间：2016-10-26
- 会议录名称：2016中国汽车工程学会年会论文集
- 英文会议录名称：Proceedings of 2016 SAE-China Congress
- 语种：中文
- 分类号：TG142.1
- 学会代码：QCGC
- 会议名称：2016中国汽车工程学会年会暨展览会
- 会议地点：中国上海
- 主办单位：中国汽车工程学会
- 学会名称：中国汽车工程学会
- 页数：5
- 文件大小：963k
- 原文格式：O
- 会议级别：全国
摘要
采用WDW-100型静态拉伸试验机及日本鹭工TS2000检力头式材料高速试验机分别对HC220B钢板母材及烘烤硬化后的材料进行了准静态及不同温度及应变率条件下的动态拉伸试验,确定了HC220B钢板材料母材的J-C型动态拉伸本构方程及烘烤硬化后的修正本构方程。采用LS-DYNA程序,研究了HC220B钢板材料动态拉伸本构方程及其烘烤硬化效应在汽车安全行人保护数值模拟中的应用。
The static tensile test on a WDW-100 material test system and the dynamic tensile tests on TS2000 material test system at different strain rates and temperatures were performed for HC220 B steel sheet specimens and the bake- hardening steel sheet specimens.Based on the stress- strain data obtained from static and dynamic tensile tests,J- C type tensile constitutive equations of the HC220 B steel material and the barking hardened steel material were determined.The application of the determined J-C type tensile constitutive equations in numerical simulation of pedestrian protection for vehicle safety was studied with LS- DYNA program.
The static tensile test on a WDW-100 material test system and the dynamic tensile tests on TS2000 material test system at different strain rates and temperatures were performed for HC220 B steel sheet specimens and the bake- hardening steel sheet specimens.Based on the stress- strain data obtained from static and dynamic tensile tests,J- C type tensile constitutive equations of the HC220 B steel material and the barking hardened steel material were determined.The application of the determined J-C type tensile constitutive equations in numerical simulation of pedestrian protection for vehicle safety was studied with LS- DYNA program.
引文
[1]贾存威,侯延军,陈大年,等.Hopkinson拉杆试验的优化与高导无氧铜拉伸本构方程的确定[J].固体力学学报,2011(32):57-62.
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[2]王焕然,谢书港,陈大年,等.试论镁铝合金高应变率单轴压缩拟合本构关系的代入校核[J].工程力学,2006,23(9):179-183.
[3]邓高涛,王焕然,陈大年.一种钢板材料动态拉伸本构方程确定以及试件尺度效应研究[J].工程力学,2014,31(1):236-242.
[4]C.Fan,B.Ma,D.Chen,H.Wang,The Impact Opening of Spot Welds by Plane Tensile Pulses,Experimental Mechanics,2015,55:331-340.
[5]Bohan Ma,Chunlei Fan,Danian Chen,Huanran Wang,Fenghua Zhou.An investigation of the dynamic separation of spot welds under plane tensile pulses,Journal of Applied Physisc,16,053503(2014).
[6]叶仲超,段小平.烘烤硬化钢的硬化特性及机理[J].钢铁研究,2011,39(1):35-37.
[7]Bailey SJ,Baldini NC,Barkley EI,Peters KA,Rosiak JL,Simms ST,et al.editors.Annual book of ASTM standards:metals—mechanical testing;elevated and low temperature tests;metallography[S].West Conshohocken,PA:ASTM International,2003:61-82.
[8]G R Johnson,W H Cook.A constitutive mode and data for metals subjected to large strains,high strain rate and high temperatures[C].Proceedings of Seventh International Symposium on Ballistics,The Hague,The Netherlands,1983,541-547.
[9]孙振东,袁健,吴卫,等.GB/T 24550—2009汽车对行人的碰撞保护[S].北京:中国标准出版社.2009.