Abstract
Compression strength and stiffness of laminated CFRP structural components are severely degraded by delaminations. The delaminations are unfortunately invisible or difficult to inspect by naked eyes. This brings significance of development of smart structures for detection of delaminations of CFRP. In the present study, an electric resistance change method is adapted for identifications of delamination crack position and size of CFRP laminates, and possibility of identification of delamination cracks is experimentally investigated by using cross ply laminates. 3-point-bending test are conducted using specimens with multiple electrodes to generate delamination cracks. Firstly, response surface to predict electric resistance change are constructed from measured electric resistance change. Secondary, design of experiments are conducted for inverse problem to predict delamination crack position and size from electric potential changes. Finally, response surface to predict delamination crack position and size are constructed. Using the response surface method with design of experiments, delamination crack position and size are predicted within practical precision without consideration of fracture mechanism.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series A
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
