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NTIS 바로가기한국항공우주학회지 = Journal of the Korean Society for Aeronautical & Space Sciences, v.42 no.11, 2014년, pp.927 - 936
박국진 (Seoul National University) , 강희진 (Seoul National University) , 신상준 (Seoul National University) , 최익현 (Korea Aerospace Research Institute) , 김민기 (Korea Aerospace Research Institute) , 김승조 (Seoul National University)
This paper presents development and verification of the progressive failure analysis upon the composite laminates. Strength and stiffness of the fiber-reinforced composite are analyzed by property degradation approach with emphasis on the material nonlinearity and continuum damage mechanics (CDM). L...
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핵심어 | 질문 | 논문에서 추출한 답변 |
---|---|---|
복합재료가 금속재료에 비하여 지니는 특징은? | 복합재료는 금속재료에 비해 비강도, 비강성 등이 우수하여 항공우주 산업에서 많이 활용된다. 복합재료는 복잡한 물질 특성을 가지고 있고 물성을 예측하기 어렵다. | |
복합재료의 강도를 평가하는 대표적인 해석 방법으로 무엇이 있는가? | 복합재료의 강도를 평가하는 대표적인 해석 방법은 점진적 파손해석(PFA, Progressive Failure Analysis) 방법이다. PFA 해석은 저하계수(Degradation Factor)를 이용하여 강성저하를 계산한다. | |
점진적 파손해석은 무엇을 이용하여 강성저하를 계산하는가? | 복합재료의 강도를 평가하는 대표적인 해석 방법은 점진적 파손해석(PFA, Progressive Failure Analysis) 방법이다. PFA 해석은 저하계수(Degradation Factor)를 이용하여 강성저하를 계산한다. 이때 강성저하를 반영하는 방법에는 크게 세 가지가 있다. |
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