摘要
对薄壁梁的轴向吸能特性影响因素进行理论分析,比较SAPH370/590DP/B280VK三种材料特性,分别建立试件的有限元模型,利用数值模拟分析单帽梁动态压溃过程的吸能特性,并进行了试验验证。结果表明:材料为SAPH370的单帽式薄壁梁总吸能及比吸能最大,在250 mm的压溃位移过程中吸能稳定而且变形充分,整体吸能效果受材料综合性能的影响。
The influencing factors of the energy absorption characteristics of thin-walled beams were theoretically analyzed.Finite element analysis was used to compare the energy absorption efficiency of thin-walled beams with different materials,that referred to SAPH370,590 DPand B280VK.Furthermore,experiment verification was made.The results are as follows： SAPH370 is more helpful in crash safety,which absorbs the most energy and holds the best deformation process among the three under the same conditions;the general absorption efficiency is affected by the comprehensive properties of the materials.
出处
《汽车零部件》
2016年第2期5-9,共5页
Automobile Parts
关键词
材料
薄壁梁
吸能特性
Materials
Thin-walled beams
Absorption characteristics
