超音波による材料内部の応力の評価
音弾性法による残留応力の非破壊評価
2004 年 4 巻 4 号 p. 284-291
詳細
2004 年 4 巻 4 号 p. 284-291
Acoustoelasticity, the method of experimental stress analysis with ultrasonic waves, is surveyed with emphases on fundamental relations (acoustoelastic laws) and nondestructive measurements of residual stress. First, the acoustoelastic effect due to uniaxial stress is described, and requirements on acoustoelastic laws are indicated. Next, the birefringence method applicable to plane stress measurements, used most frequently in acoustoelasticity, is illustrated together with examples. Then, the illustration of nondestructive methods with SH waves is given, and finally, acoustoelasticity with surface waves is summarized.
