서지주요정보
SA508 Gr.3 강의 천이영역 파괴특성에 미치는 응력상태의 영향 = Effect of stress state on the fracture behavior of SA508 Gr.3 steel in the transition region
서명 / 저자 SA508 Gr.3 강의 천이영역 파괴특성에 미치는 응력상태의 영향 = Effect of stress state on the fracture behavior of SA508 Gr.3 steel in the transition region / 김석훈.
저자명 김석훈 ; Kim, Seok-Hun
발행사항 [대전 : 한국과학기술원, 1998].
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소장정보

등록번호

8009131

소장위치/청구기호

학술문화관(문화관) 보존서고

MNE 98013

SMS전송

도서상태

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초록정보

The effect of stress state on the fracture behavior of SA508 Gr.3 steel in the transition temperature region has been investigated using notched round tensile specimens of various notch root radii. The test results showed that the fracture stress and fracture strain are strongly dependent on the stress triaxiality ; the fracture stress increases with the stress triaxiality, while the fracture strain decreases with the stress triaxiality. The fracture stress is nearly independent of the test temperature. However, the fracture strain reveals typical ductile-to-brittle transition with lower and upper shelf. The transition behaviors of the fracture strain, such as the ductile-to-brittle transition temperature(DBTT) and upper shelf value, are strongly affected by the stress state. Also, a model for evaluating the fracture toughness($K_c$) from the tensile test results is proposed and applied. The fracture toughness values calculated with the model are statistically analysed according to the ASTM E1921 method and the results are compared with the results from three-point bend(TPB) specimens.

서지기타정보

서지기타정보
청구기호 {MNE 98013
형태사항 vi, 55 p. : 삽도 ; 26 cm
언어 한국어
일반주기 저자명의 영문표기 : Seok-Hun Kim
지도교수의 한글표기 : 황용석
공동교수의 한글표기 : 김인섭
지도교수의 영문표기 : Yong-Seok Hwang
공동교수의 영문표기 : In-Sup Kim
학위논문 학위논문(석사) - 한국과학기술원 : 원자력공학과,
서지주기 참고문헌 : p. 51-52
주제 파괴인성
파괴응력
파괴변형률
응력 삼축성
천이영역
Fracture toughness
Fracture stress
Fracture strain
Stress triaxiality
Transition region
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