서지주요정보
$ΔK_{eff}$ 제어 균열진전 시험의 자동화와 고 정밀화에 관한 연구 = Automated $ΔK_{eff}$ - controlled fatigue crack growth testing with high precision
서명 / 저자 $ΔK_{eff}$ 제어 균열진전 시험의 자동화와 고 정밀화에 관한 연구 = Automated $ΔK_{eff}$ - controlled fatigue crack growth testing with high precision / 임상규.
저자명 임상규 ; Lim, Sang-Kyu
발행사항 [대전 : 한국과학기술원, 2004].
Online Access 원문보기 원문인쇄

소장정보

등록번호

8014956

소장위치/청구기호

학술문화관(문화관) 보존서고

MME 04058

SMS전송

도서상태

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초록정보

In this thesis, an automated system with high precision has been developed to perform fatigue crack growth tests under constant effective stress intensity factor range $ΔK_{eff}$. The system has been developed to measure in real time the crack length by using the unloading elastic compliance method and the crack opening load by using the compliance offset method or unloading compliance offset method. The performance of the automated system developed in this study was verified through a series of fatigue crack growth tests under constant amplitude loading. The system consists of two personal computers, an analog electrical subtraction circuit, and the application software used to integrate the whole system. In this thesis, constant $ΔK_{eff}$ crack growth tests on a M(T) specimen of 2024-T351 aluminum alloy are performed and it is observed that fatigue crack growth rates can be well expressed in terms of the effective stress intensity factor range $ΔK_{eff}$. Besides, the automated system developed in this study can be efficiently applied for automation of various fatigue crack growth tests including short crack growth studies.

서지기타정보

서지기타정보
청구기호 {MME 04058
형태사항 vii, 63 p. : 삽도 ; 26 cm
언어 한국어
일반주기 저자명의 영문표기 : Sang-Kyu Lim
지도교수의 한글표기 : 송지호
지도교수의 영문표기 : Ji-Ho Song
학위논문 학위논문(석사) - 한국과학기술원 : 기계공학전공,
서지주기 참고문헌 : p. 62-63
주제 유효응력강도계수폭
피로파괴
피로균열진전속도
피로균열닫힘
자동화
Effective stress intensity factor range
Fatigue fracture
Fatigue crack growth rate
Fatigue crack closure
Automation
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