서지주요정보
316L 스테인리스 강의 크리프-피로 수명예측모델 개발에 관한 연구 = A study on the development of a creep-fatigue life prediction model of type 316L stainless steels
서명 / 저자 316L 스테인리스 강의 크리프-피로 수명예측모델 개발에 관한 연구 = A study on the development of a creep-fatigue life prediction model of type 316L stainless steels / 이준연.
저자명 이준연 ; Lee, Jun-Youn
발행사항 [대전 : 한국과학기술원, 2002].
Online Access 원문보기 원문인쇄

소장정보

등록번호

8012797

소장위치/청구기호

학술문화관(문화관) 보존서고

MME 02054

SMS전송

도서상태

이용가능

대출가능

반납예정일

초록정보

3161, stainless steels are mostly used for structures in high temperature nowadays. In fast reactor plant, main components have been and will be made of 316L stainless steels because of their superior high-temperature strength and ductility. Many components operating in high temperature structures, like power generating plant, fast breeder reactor, pressure vessel and so on, are subjected to combined creep-fatigue damage. Unexpected failures which bring severe disasters can occur by this damage. It is very important to predict the fatigue life of materials under creep-fatigue condition because accurate life prediction can make the materials used safely and efficiently. In order to quantify the effect of tensile hold time on the fatigue life, creep-fatigue tests with a tensile strain-hold wave form were carried out on 3161, stainless steels. In this test method, the creep loading and fatigue loading were repeated alternately. Three levels of tensile hold time were considered. A New purposed creep-fatigue life prediction model is based on the linear damage summation rule. The linear damage summation rule assumes that when the fatigue damage and the creep damage sum to unity the failure under the creep-fatigue condition can occur. In this new life prediction model, the fatigue damage component is derived from the cycles ratio summation and the creep damage component is formulated as a function of the amount of stress relaxation. According to the verification of the adequacy of this new life prediction model, the predicted life agreed well with the observed life and a new purposed life prediction model is more accurate than original life prediction methods (Time fraction rule, ductility exhaustion rule)

서지기타정보

서지기타정보
청구기호 {MME 02054
형태사항 vi, 77 p. : 삽도 ; 26 cm
언어 한국어
일반주기 저자명의 영문표기 : Jun-Youn Lee
지도교수의 한글표기 : 이순복
지도교수의 영문표기 : Soon-Bok Lee
학위논문 학위논문(석사) - 한국과학기술원 : 기계공학전공,
서지주기 참고문헌 : p. 34-35
주제 크리프-피로
수명예측모델
creep-fatigue
life prediction model
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