|
|
|
|
|
Peilu Li, Chunguang Xu, Qinxue Pan, Yuren Lu and Shuangyi Li
According to the acousto elastic effect, the residual stress on the surface of the rail can be evaluated by measuring the change in the propagation velocity of ultrasonic waves, such as longitudinal critically refracted (LCR) waves on the surface of the ...
ver más
|
|
|
|
|
|
|
|
|
Sang-Gyu Lee, Daekyun Oh and Jong Hun Woo
Ship structures made of glass fiber-reinforced polymer (GFRP) composite laminates are considerably thicker than aircraft and automobile structures and more likely to contain voids. The production characteristics of such composite laminates were investiga...
ver más
|
|
|
|
|
|
|
|
|
Jie Yu, Dongqi Zhang, Hui Li, Changhui Song, Xin Zhou, Shengnan Shen, Guoqing Zhang, Yongqiang Yang and Hongze Wang
This paper presents a laser ultrasonic testing (LUT) method for the inspection of internal hole defects in a Ti-6Al-4V part produced by additive manufacturing (AM). The LUT system achieved a resolution in sub-millimeter scale, demonstrating its significa...
ver más
|
|
|
|
|
|
|
|
|
Seonguk Hong, Sangki Yoon, Jonghyun Kim, Changjong Lee, Seunghun Kim and Yongtaeg Lee
The purpose of this study is to estimate the compressive strength according to the age of the concrete structure using ultrasonic pulse velocity method. If the correlation between the ultrasonic pulse velocity and the compressive strength according to th...
ver más
|
|
|
|
|
|
|
|
|
Rymantas Jonas Kazys, Liudas Mazeika and Justina Sestoke
Air-coupled ultrasonic guided A0 mode is already used for material characterization. By measuring the phase velocity of the A0 mode the elastic properties, such as the Young?s modulus, can be determined. The objective of this work was the development of ...
ver más
|
|
|
|