Publisher : The Korean Society of Mechanical Engineers
DOI : 10.22634/KSME-A.19188.8.131.5248
Title & Authors
Impact Damages and Residual Strength of CFRP Laminates under the Hygrothermal Environment Jeong, Jong-An; Yang, In-Yeong;
This study is to investigate experimentally relationships between the impact energy and moisture absorption characteristies vs.the residual bending strength with the variation of stacking seqences. When Carbon-fiber reinforced plastics(CFRP) impact-induced laminates are subjected to the high temperatures and hygrothermal effects, it is found that what CFRP laminates are impacted by a steel ball (5 mm in diametar) ; thus, the generated delamination is observed by the ultrasonic microscope. And the residual bending strength is evaluated by a three-point bending test. Also, a thermostat is used in test with the unimpacted and impacted specimens for the moisture experimentaiton. The percision electro lever scles is used to measure the moisture content(1/10, 000g).