摘要
推导了具有工程背景的弱正交异性材料的超声波斜入射应力－声关系．推导结果表明，对于弱正交异性材料，如果声波在材料对称面内斜入射，且满足ｎ２Ｅ的条件，则声波将以纯模传播，其传播速度与材料的应力状态及初始材料各向异性有关。
The stress acoustic relationship for off axis ultrasonic wave is derived in slightly orthotropic material. The results show that for slightly orthotropic material, if ultrasonic wave propagates in the symmetry planes of material and the propagation direction meet to the condition of nE , the acoustic wave propagates in the material with pure mode,and the velocity of sound wave varying with the direction of propagation,is related to stress state and initial anisotropy of the material.
出处
《华中理工大学学报》
CSCD
北大核心
1999年第1期109-112,共4页
Journal of Huazhong University of Science and Technology
基金
国家自然科学基金
关键词
弱正交异性材料
应力-声关系
应力测量
超声波
acoustoelasticity
slightly orthotropic material
stress acoustic relationship
ultrasonic stress tomography
