인문학
사회과학
자연과학
공학
의약학
농수해양학
예술체육학
복합학
DBpia AI
AI 에이전트
AI 아이디어
AI 리더
AI 뷰어
Citeasy
크롬 서지관리 다운로드
지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록·키워드
Purpose: An accelerated life test (ALT) plan was devised after investigating the potential failure mechanisms of a ceramic disk material for a water valve. Moreover, ALT was implemented to establish a life distribution and acceleration model.
Methods: The thermal shock behavior of the ceramic disk was predicted using finite element method. To reproduce the disk, a jig was fabricated and then the ALT was performed. After the test, failure analysis was conducted through optical microscopy and surface roughness measurement.
Results: The life distribution of the ceramic disk for the water valve was confirmed to have a Weibull distribution with a shape parameter of 1.5. Moreover, because the operating condition was thermal shock acceleration, the acceleration model was suitable when the Coffin-Manson model with a material constant of 6.6 was applied.
Conclusion: The analysis of the average values and standard deviations of the surface roughness of failed products using ALT showed that the more severe the environment, the greater the wear of the ceramic disk. This indicated that ALT was well planned and implemented.
Methods: The thermal shock behavior of the ceramic disk was predicted using finite element method. To reproduce the disk, a jig was fabricated and then the ALT was performed. After the test, failure analysis was conducted through optical microscopy and surface roughness measurement.
Results: The life distribution of the ceramic disk for the water valve was confirmed to have a Weibull distribution with a shape parameter of 1.5. Moreover, because the operating condition was thermal shock acceleration, the acceleration model was suitable when the Coffin-Manson model with a material constant of 6.6 was applied.
Conclusion: The analysis of the average values and standard deviations of the surface roughness of failed products using ALT showed that the more severe the environment, the greater the wear of the ceramic disk. This indicated that ALT was well planned and implemented.
본문·목차
인공지능 문자 인식 모델을 통해 추출된 텍스트로, 일부 오타나 오류가 포함될 수 있으나 지속적으로 개선 중입니다.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.
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