Review of Progress in Quantitative Nondestructive Evaluation
A study of impact damage morphology in unidirectional carbon/epoxy laminates was performed. A “load drop” method was investigated for prediction of the delamination threshold energy (EDT) for impact. The impacted samples were subjected to uniaxial, in-plane compression to observe the growth of damage, failure modes, and residual strength. Samples were scanned before and after CAI using air-coupled through-transmission ultrasound and amplitude C-scans were collected for visual inspection of damage.
American Institute of Physics
Subramanian, Ajith; Dayal, Vinay; and Barnard, Daniel J., "Damage characterization of carbon/epoxy laminates using compression-after-impact (CAI) and ultrasonic NDE" (2012). Center for Nondestructive Evaluation Conference Papers, Posters and Presentations. 1.