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Effects of temperature on impact damages in CFRP composite laminates |
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| Authors: | Kwang-Hee Im Cheon-Seok Cha Sun-Kyu Kim In-Young Yang |
| Affiliation: | a Department of Automotive Engineering, Woosuk University, 490 Hujung-ri Samrae-up, Wanju-gun, Chonbuk 565-701, South Korea b Department of Mechanical Design Engineering, Chosun University, 375 Sosok-dong, Dong-gu Kwangju 501-759, South Korea c Department of Automobile Engineering, Iksan National College, 194-5 Ma-dong, Iksan, Chonbuk 570-752, South Korea d School of Mechanical Engineering, Chosun University, 375 Sosok-dong, Dong-gu Kwangju 501-759, South Korea |
| Abstract: | In this paper, the effect of temperature variations (low and high temperatures) was studied experimentally on impact damage to CFRP laminates. The composite laminates used in this experiment were CF/EPOXY orthotropic laminated plates with lay-up 06/906]s and 04/904]s, and CF/PEEK orthotropic laminated plates with a lay-up of 06/906]s. A steel ball launched by the air gun was used to generate the CFRP laminate impact damage. For impact-damaged specimens, nondestructive evaluation (NDE), such as a scanning acoustic microscopy (SAM) was performed on the delamination-damaged samples to characterize damage growth at different temperatures. Therefore, this study was undertaken to experimentally determine the interrelations between impact energy and impact damage (i.e. the delamination area and matrix) of CFRP laminates (CF/EPOXY and CF/PEEK) subjected to foreign object damages (FOD) at low and high temperatures. |
| Keywords: | B Delamination C Transverse cracking Carbon fiber reinforced plastics (CFRP) |
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