서지주요정보
하중이력 데이타베이스 및 균열닫힘현상을 고려한 피로균열진전 해석 전문가시스템 프로토타입의 구축 = Development of a load history database and an expert system prototype for the analysis of fatigue crack growth based on the concept of crack closure
서명 / 저자 하중이력 데이타베이스 및 균열닫힘현상을 고려한 피로균열진전 해석 전문가시스템 프로토타입의 구축 = Development of a load history database and an expert system prototype for the analysis of fatigue crack growth based on the concept of crack closure / 임형진.
저자명 임형진 ; Lim, Hyung-Jin
발행사항 [대전 : 한국과학기술원, 1997].
Online Access 원문보기 원문인쇄

소장정보

등록번호

8008089

소장위치/청구기호

학술문화관(문화관) 보존서고

MADE 97035

휴대폰 전송

도서상태

이용가능

대출가능

반납예정일

초록정보

A load history database system and an expert system prototype for the analysis of fatigue crack growth based on the concept of crack closure were developed on personal computer. A relational Database Management System software MS Visual Foxpro ver 3.0 was used for the load history database system and also utilized for the user interface of the expert system. Computing programs for the expert system were written in Borland C++. In the load history database system, datacode and serial number are used to identify the history data. This system have 28 tables and totally 150 attributes(fields) to describe the load history data in detail. The expert system prototype includes fatigue crack growth assessment module based on the concept of crack closure using da/dN-$ΔK_eff$ data as well as conventional crack growth assessment module using da/dN-$ΔK$ data. To assess fatigue crack growth life based on the concept of crack closure, da/dN-$ΔK_eff$ and $U-K_max$ data are required. The da/dN-$ΔK_eff$ and $U-K_max$ data obtained at Strength Design and Database Lab., KAIST, are available. The expert system can perform fatigue crack growth analysis for a number of situations. 12 kinds of crack shape are considered including the actual crack shape in the geometry step and various random and programmed load histories are dealt with in the load history step. Even if a user does not have the sufficient data for the analysis, she or he is asked which data are availabe during the time of fatigue crack growth assessment. At the time, the proper routines are executed in accordance with the user*s answer. Therefore any engineering designer can perform fatigue crack growth analysis successfully by utilizing this expert system.

서지기타정보

서지기타정보
청구기호 {MADE 97035
형태사항 vii, 63 p. : 삽도 ; 26 cm
언어 한국어
일반주기 부록 : 데이타베이스 테이블 및 속성항목
저자명의 영문표기 : Hyung-Jin Lim
지도교수의 한글표기: 송지호
지도교수의 영문표기: Ji-Ho Song
학위논문 학위논문(석사) - 한국과학기술원 : 자동화및설계공학과,
서지주기 참고문헌 : p. 29-31
주제 균열닫힘
균열진전속도
응력강도계수
데이타베이스
Crack closure
Crack growth rate
Stress intensity factor
Database
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