메뉴 건너뛰기
.. 내서재 .. 알림
소속 기관/학교 인증
인증하면 논문, 학술자료 등을  무료로 열람할 수 있어요.
한국대학교, 누리자동차, 시립도서관 등 나의 기관을 확인해보세요
(국내 대학 90% 이상 구독 중)
로그인 회원가입 고객센터 ENG
주제분류

추천
검색

논문 기본 정보

자료유형
학술저널
저자정보
Shuwei Zhou (Southwest Jiaotong University) Bing Yang (Southwest Jiaotong University) Shoune Xiao (Southwest Jiaotong University) Guangwu Yang (Southwest Jiaotong University) Tao Zhu (Southwest Jiaotong University)
저널정보
대한금속·재료학회 Metals and Materials International Metals and Materials International Vol.30 No.7
발행연도
2024.7
수록면
1,944 - 1,964 (21page)
DOI
10.1007/s12540-024-01628-6

이용수

표지
📌
연구주제
📖
연구배경
🔬
연구방법
🏆
연구결과
AI에게 요청하기
추천
검색

초록· 키워드

오류제보하기
Interpretable machine learning (ML) has become a popular tool in the field of science and engineering. This research proposeda domain knowledge combined with ML method to increase interpretability while ensuring the accuracy of ML modelsand verifies the generality of the ML approach in fatigue crack growth (FCG) modelling. LZ50 steel single edge notchtension (SENT) specimens were tested for short crack (SC) growth rate and microstructure characterization under variousR-controls. Based on the test results, the SC growth process was divided into 3 stages: microstructural short crack (0–145 μm),physical short crack (145–1000 μm), and long crack (1000 μm–fracture). Following the analysis of 8 semi-empirical FSCGrate equations with different driving forces, 6 impact variables that may affect the FCG rate characteristics were identified.Random forest and Pearson correlation analysis were used to investigate the influence of each feature on the FCG rate and therelationships among the features. The main influential features for the short crack symbolic regression (SCSR) model werefound to be |ΔK–ΔKat|, Δγxy, |a–at|, and eα(1−R). After considering these 4 input features, the predicted FSCG rate equationgenerated by the SR model has a concise mathematical structure. Finally, an elastic net multiple linear regression methodwas proposed to determine the parameters of the predicted equation, while retaining the physical characteristics of eachparameter. The SCSR model for SC demonstrated good prediction performance on various metallic materials.

목차

등록된 정보가 없습니다.

참고문헌 (0)

참고문헌 신청

함께 읽어보면 좋을 논문

논문 유사도에 따라 DBpia 가 추천하는 논문입니다. 함께 보면 좋을 연관 논문을 확인해보세요!

최근 본 자료

전체보기

댓글(0)

0