서지주요정보
7075-T6 알루미늄 합금의 노치밑 피로 균열진전거동에 관한 연구 = A study on fatigue crack growth behavior in the vicinity of notch in 7075-T6 aluminum alloy
서명 / 저자 7075-T6 알루미늄 합금의 노치밑 피로 균열진전거동에 관한 연구 = A study on fatigue crack growth behavior in the vicinity of notch in 7075-T6 aluminum alloy / 서진원.
저자명 서진원 ; Seo, Jin-Weon
발행사항 [대전 : 한국과학기술원, 1990].
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소장정보

등록번호

8000701

소장위치/청구기호

학술문화관(문화관) 보존서고

MME 9027

SMS전송

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초록정보

Using small-sized bending fatigue testing machine of electro-dynamic type, fatigue crack growth tests were performed on 7075-T6 aluminum alloy to investigate fatigue crack growth behavior in the vicinity of notch. Crack length and crack closure were measured by unloading elastic compliance technique using back face strain gage. To introduce a short through-thickness crack at the root of notch, firstly, it was attempted to make perfectly straight through-thickness pre-crack. Specimens with various types of side groove and starter notch were tested. As a result, perfectly straight through-thickness precrack could be obtained by employing the specimens with round side groove and starter notch of chevron type. After precracking, notch was introduced by EDM(Electric Discharge Machining). Growth rates of short fatigue crack(in length 0.3-1.5mm) under the influence of notch were well described by the effective stress intensity factor range accounting for crack closure

서지기타정보

서지기타정보
청구기호 {MME 9027
형태사항 [ii], 47 p. : 삽도 ; 26 cm
언어 한국어
일반주기 저자명의 영문표기 : Jin-Weon Seo
지도교수의 한글표기 : 송지호
지도교수의 영문표기 : Ji-Ho Song
학위논문 학위논문(석사) - 한국과학기술원 : 기계공학과,
서지주기 참고문헌 : p. 18-19
주제 Fracture mechanics.
Strain gages.
Notched bar testing.
피로 균열. --과학기술용어시소러스
균열 전파. --과학기술용어시소러스
파괴 역학. --과학기술용어시소러스
스트레인 게이지. --과학기술용어시소러스
피로 파괴. --과학기술용어시소러스
Metals --Fatigue.
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