摘要
利用LS_DYNA有限元软件建立了半刚性护栏在冲击荷载作用下的有限元模型 ,并将护栏受到冲击时的能量吸收情况以及加载头的速度和加速度随时间变化的有限元分析结果与实验结果进行了对比 .分析表明 ,有限元方法是研究护栏力学性能的有效手段 。
A model of semi_rigid guardrails under impact loa ding was built by using LS_DYNA FEM (Finite Element Method) software. The loadin g_heading's acceleration_time curves, velocity_time curves and the guardrail's t otal energy absorbing capacity were obtained and compared with experimental meas urements under impact. The results show that FEM is an effective way in the anal ysis of mechanical behavior of guardrails, This research provides the base of th e further investigati on of energy absorption and optimization of structure design of guardrail system under impact loading.
出处
《华南理工大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2003年第3期64-68,共5页
Journal of South China University of Technology(Natural Science Edition)
基金
广东省自然科学基金资助项目 (980 5 770 0 0 4 82 )
广东交通厅资助项目
