RISS 검색 - 국내학술지논문 상세보기

다국어 초록 (Multilingual Abstract)

Impact damage tolerance is an important design requirement for composite structures. In this study, the effect of post impact damage and hole size of the composite sandwich skin / sandwich with core specimen on compressive strength of the laminate was analyzed. Three specimen tests were performed in this research. Two tests were carried out on pure bending test specimens subjected to impact damage to the skin and specimen with a hole in one of its skin as a damage. Through this test, we compared the reduction of compressive strength due to the size of skin damage and the size of the hole. Also, core-free specimen with an open hole under uniaxial loading were tested to produce reference data for comparison with the series tested earlier. As results of the tests, the sandwich beams with damage size and open hole are almost identical, and we concluded that the prediction of compressive strength reduction after impact of the sandwich skin structure can be predicted using an analytical model assuming skin open hole as impact inputs.

목차 (Table of Contents)

ABSTRACT
1. 서론
2. 재료의 물성치 및 시험절차
3. 테스트 결과
3.1 시리즈 1

ABSTRACT
1. 서론
2. 재료의 물성치 및 시험절차
3. 테스트 결과
3.1 시리즈 1
3.2 시리즈 2
3.3 시리즈 3
4. 해석적 접근
4.1 충격손상과 원공효과 비교
4.2 샌드위치 스킨과 원공을 포함한 스킨 라미네이트 효과비교
4.3 순강도(Net Stress) 비교
5. 결론
References

참고문헌 (Reference)

1 고등, "탄소 섬유 강화 플라스틱 샌드위치 복합재료의 충격특성에 관한 연구" 한국기계기술학회 16 (16): 1339-1344, 2014

2 Whitney, J.M., "Stress Fracture Criteria for Laminated Composites Containing Stress Concentrations" 8 : 253-265, 1974

3 Chang, F.K., "Strength of Mechanically Fastened Composite Joints" 16 : 470-494, 1982

4 Sun, C.T., "Failure loads for notched graphite/epoxy laminates with a softening strip" 27 : 121-133, 1985

5 Soutis, C., "Failure Prediction Technique for Compression Loaded in Carbon Fibre-epoxy Laminate with Open Hole" 25 : 1476-1498, 1991

6 Lessard, L., "Damage tolerance of laminated composites containing an open hole and subjected to compressive loadings" 25 : 44-64, 1991

7 Lekhnitskli, G., "Anisotropic Plates" Gordon and Breach Science Publishers 171-190, 1968

8 Park, Seung Bum, "An Experimental Study of Impact Behavior and Impact Damage of Sandwich Pannels" 3 (3): 151-517, 2001

9 Guynn, G., "A detailed Investigation of the micromechanisms of compressive failure in open hole composite laminates" 23 : 479-504, 1989