摘要
采用ANSYS有限元仿真软件模拟超声Lamb波在4 mm厚的钢板结构中的传播过程,计算S0模态和A0模态超声Lamb波的群速度和沿钢板厚度方向上的位移波结构,绘制频散曲线和波结构特性曲线,理论分析与仿真结果基本吻合;为超声Lamb波群速度测定和缺陷检测提供理论依据。
The propagation process of A0 and S0 mode wave in 4 mm steel plate was simulated in finite element simulation software ANSYS,and group velocity curves and wave structure characteristic curves of S0 and A0 Lamb waves in steel plate were plotted. Simulation results are approximately agreed with the theoretical analysis. It provides theoretical basis for group velocity measurement and defect detection.
作者
袁培龙
周绍骑
李学新
唐航
YUAN Pei-long ZHOU Shao-qi LI Xue-xin TANG Hang(Department of Military Petroleum Supply Engineering, Logistical Engineering University of PLA, Chongqing 401331, China)
出处
《兵器装备工程学报》
CAS
2017年第3期137-142,共6页
Journal of Ordnance Equipment Engineering
基金
重庆市重点科技攻关项目(cstc2012gg-sfgc00002)
关键词
LAMB波
频散
波结构
有限元
传播规律
Lamb wave
dispersion
wave structure
the FE method
propagation law
