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.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 대한기계학회 Journal of Mechanical Science and Technology Journal of Mechanical Science and Technology Vol.19 No.7
- 발행연도
- 2005.7
- 수록면
- 1,393 - 1,404 (12page)
이용수
초록· 키워드
오류제보하기
Fatigue crack growth and life have been estimated based on established empirical equations. In this paper, an alternative method using artificial neural network (ANN)-based model developed to predict fatigue damages simultaneously. To learn and generalize the ANN, fatigue crack growth rate and life data were built up using in-plane bending fatigue test results. Single fracture mechanical parameter or nondestructive parameter can't predict fatigue damage accurately but multiple fracture mechanical parameters or nondestructive parameters can. Existing fatigue damage modeling used this merit but limited real-time damage monitoring. Therefore, this study shows fatigue damage model using backpropagation neural networks on the basis of X-ray half breadth ratio B/B_o, fractal dimension D_f and fracture mechanical parameters can estimate fatigue crack growth rate da/dN and cycle ratio N/N_f at the same time within engineering limit error (5%).
목차
Abstract
1. Introduction
2. Theoretical Background of ANN
3. Estimation of Fatigue Damage U sing Destructive and Non-Destructive Parameters
4. Result and Examination of Fatigue Damage Modeling
5. Conclusion
References
참고문헌 (16)
참고문헌 신청
Coffin, L. F., Jr., 1954, "A Study of the effects of Cyclic Thermal Stress in a Ductile Metal," ASME, Trasactions, Vol.16, pp.931~950.
Elber, W., 1970, The significance of Fatigue Crack Closure, Damage Tolerance in Aircraft Structures, STP-486, ASTM, pp.230~243.
Hironobu Nisitani and Masahir Goto, 1985, "Relation between Small-crack Growth Law and Fatigue Life of Machines," Journal of JSME, Vol.51, No.462, pp.332~341.
Hiroshi OKUDA, Hiroshi MIYZAKI, Genki YAGAWA, 1996, "Model of Inelastic Response using Neural Networks," Int. J. of JSME (A), Vol.62, No.597, pp.1284~1291.
Jang, D. Y., Cho, S. S. and Kim, D. J., 1999, "A Study on Fractal Property of Surface Micro-crack Under Plane Bending Load," Journal of Samcheok Nationl University (Korea), Vol.31, pp.35~49.
Elber, W., 1970, The significance of Fatigue Crack Closure, Damage Tolerance in Aircraft Structures, STP-486, ASTM, pp.230~243.
Hironobu Nisitani and Masahir Goto, 1985, "Relation between Small-crack Growth Law and Fatigue Life of Machines," Journal of JSME, Vol.51, No.462, pp.332~341.
Hiroshi OKUDA, Hiroshi MIYZAKI, Genki YAGAWA, 1996, "Model of Inelastic Response using Neural Networks," Int. J. of JSME (A), Vol.62, No.597, pp.1284~1291.
Jang, D. Y., Cho, S. S. and Kim, D. J., 1999, "A Study on Fractal Property of Surface Micro-crack Under Plane Bending Load," Journal of Samcheok Nationl University (Korea), Vol.31, pp.35~49.
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