탄소섬유복합평판에 낙추충격을 가할 때 적층구성에 미치는 영향에 관한 연구

A Study on the Influence of Stacking Sequences using CFRP Laminate Plates by Falling Weight Impact

  • 임광희 (우석대학교 반도체전기자동차공학부) ;
  • 박노식 (조선대학교 대학원) ;
  • 양인영 (조선대학교 기계공학부)
  • 발행 : 2000.11.01

초록

Impact tester was build up to evaluate the characterization of CFRP laminate plates under the low velocity impact. The tests were conducted on several laminates of different ply orientation A system was budded for the impact strength of CFRP laminates in consideration of stress wave propagation theory using drop-weight impact tester as one of impact test. Results indicate that absorbed energy of quasi-isotropic specimen having four interfaces is higher than that of orthotropic laminates with two interfaces. Also the damage area was measured with ultrasonic C-scanner on some samples. In the specimens the relationship was linear between damaged area and absorbed energy to some degree. Absorbed energy in the specimen that ply number, interface number and fiber stacking sequences is same but having hybrid is higher than that of orthotropic laminates without hybrid.