Ultrasonic characterization on sequences of CFRP composites based on modeling and motorized system |
| |
Authors: | Kwang-Hee?Im David?K?Hsu Sung-Jin?Song Je-Woung?Park Jae-Ki?Sim Email author" target="_blank">In?Young?YangEmail author |
| |
Affiliation: | (1) Department of Automotive Eng., Woosuk University, 565-701 Chonbuk, Korea;(2) Center for Nondestructive Evaluation, Iowa State University, 50011 Ames, Iowa, USA;(3) School of Mechanical Engineering, Sungkyunkwan University, 440-746 Kyonggi- do, Korea;(4) Factory Automation Research Center for Parts of Vehicles and School of Mechanical Engineering, Chosun University, 501-759 Kwangju, Korea |
| |
Abstract: | Composites are a material class for which nondestructive material property characterization is as important as flaw detection.
Laminates of fiber reinforced composites often possess strong in-plane elastic anisotropy attributable to the specific fiber
orientation and layup sequence when waves are propagating in the thickness direction of composite laminates. So the layup
orientation greatly influences its properties in a composite laminate. It could result in the part being rejected and discarded
if the layup orientation of a ply is misaligned. A nondestructive technique would be very beneficial, which could be used
to test the part after curing and requires less time than the optical test. Therefore a ply-by-ply vector decomposition model
has been developed, simplified, and implemented for composite laminates fabricated from unidirectional plies. This model decomposes
the transmission of a linearly polarized ultrasound wave into orthogonal components through each ply of a laminate. Also in
order to develop these methods into practical inspection tools, motorized system have been developed for different measurement
modalities for acquiring ultrasonic signals as a function of in-plane angle. It is found that high probability shows between
the model and tests developed in characterizing cured layups of the laminates. |
| |
Keywords: | Sequences Composite Laminates Ply-by-ply Vector |
本文献已被 SpringerLink 等数据库收录! |
|