金属复合材料界面超声检测仿真设计与分析  

Simulation Design and Analysis of the Ultrasonic Testing to Metal Composites Interface

作　　者：孙继华[1] 赵扬[1] 南钢洋[1] 马健[1] 巨阳[1] SUN Jihua;ZHAO Yang;NAN Gangyang;MA Jian;JU Yang(Laser Research Institute,Shandong Academy of Sciences,Center of Non-destructive Testing Engineering Technology Research in Shandong Province,Jinan 250103,China)

机构地区：[1]山东省科学院激光研究所山东省无损检测工程技术研究中心,济南250103

出　　处：《实验室研究与探索》2018年第6期100-106,共7页Research and Exploration In Laboratory

基　　金：山东省重点研发计划(2016ZDJQ0401);山东省自然科学基金(ZR2016FB26);山东省科学院杰出青年计划(201505)

摘　　要：以船舶用铝/钛/钢爆炸焊复合材料为研究对象,利用有限元数值模拟方法建立铝/钛/钢复合材料仿真模型,仿真分析铝/钛和钛/钢界面的不同结合情况下的超声检测信号,通过波场快照直观的显示超声波在界面不同情况下的传播情况,通过回波信号和透射波信号,分析界面不同情况对超声波信号的影响;通过对透射波进行频谱分析得到了界面不同情况下频谱特性。仿真所得结果与理论结果一致,说明应用有限元方法可以有效的仿真超声波在铝/钛/钢复合材料中的传播情况,仿真结果可以为实际应用提供了依据。In order to get the welding quality of aluminum/titanium/steel composites,the quality inspection and evaluation of the aluminum/titanium and titanium/steel need to be strengthened. Finite element models were developed to simulate the ultrasonic testing to aluminum/titanium/steel composites plate in shipbuilding. The snapshots intuitive display the ultrasonic propagation when the interface has different conditions. We can obtain the effect on ultrasonic signal of interface under different conditions that was been analyzed from the echo signal and transmission signal,and obtain the different spectrum characteristics from spectrum analysis of the transmission signal. The simulation results are in agreement with the theoretical results. The simulation showed that the finite element simulation method is effective in ultrasonic propagation in aluminum/titanium/steel composites plate. The simulation results may be useful to the practical application.

关 键 词：铝/钛/钢复合材料 超声检测 仿真分析 复合缝隙 

分 类 号：TG115.2[金属学及工艺—物理冶金]