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
- 한국계산역학회 Computers and Concrete, An International Journal Computers and Concrete, An International Journal Vol.19 No.5
- 발행연도
- 2017.1
- 수록면
- 501 - 507 (7page)
이용수
초록· 키워드
오류제보하기
The predictive utility of a damage model depends heavily on its particular choice of a damage variable, which serves as a macroscopic approximation in describing the underlying micromechanical processes of microdefects. In the case of spatially perfectly randomly distributed microcracks or microvoids in all directions, isotropic damage model is an appropriate choice, and scalar damage variables were widely used for isotropic or one-dimensional phenomenological damage models. The simplicity of a scalar damage representation is indeed very attractive. However, a scalar damage model is of somewhat limited use in practice. In order to entirely characterize the isotropic damage behaviors of damaged materials in multidimensional space, a system theory of isotropic double scalar damage variables, including the expressions of specific damage energy release rate, the coupled constitutive equations corresponding to damage, the conditions of admissibility for two scalar damage effective tensors within the framework of the thermodynamics of irreversible processes, was provided and analyzed in this study. Compared with the former studies, the theoretical formulations of double scalar damage variables in this study are given in the form of matrix, which has many features such as simpleness, directness, convenience and programmable characteristics. It is worth mentioning that the above-mentioned theoretical formulations are only logically reasonable. Owing to the limitations of time, conditions, funds, etc. they should be subject to multifaceted experiments before their innovative significance can be fully verified. The current level of research can be regarded as an exploratory attempt in this field.
목차
등록된 정보가 없습니다.
참고문헌 (33)
참고문헌 신청
Alexandrov, S. / 2011 / Damage evolution in an expanding/contracting hollow sphere at large strains / Contin. Mech. Thermodyn. 23(6):573~580
Alexander, M. / 2012 / From damage to delamination in nonlinearly elastic materials at small strains / J. Elast. 109(2):235~273
Cauvin, A. / 1999 / Damage mechanics : Basic variables in continuum theories / J. Sol. Struct. 36(5):747~761
Chow, C. L. / 1999 / Constitutive modeling of material damage for fatigue failure prediction / J. Damage Mech. 8(4):355~375
D’Annibale, F. / 2013 / A damage constitutive model for sliding friction coupled to wear / Contin. Mech. Thermodyn. 25(2-4):503~522
Alexander, M. / 2012 / From damage to delamination in nonlinearly elastic materials at small strains / J. Elast. 109(2):235~273
Cauvin, A. / 1999 / Damage mechanics : Basic variables in continuum theories / J. Sol. Struct. 36(5):747~761
Chow, C. L. / 1999 / Constitutive modeling of material damage for fatigue failure prediction / J. Damage Mech. 8(4):355~375
D’Annibale, F. / 2013 / A damage constitutive model for sliding friction coupled to wear / Contin. Mech. Thermodyn. 25(2-4):503~522
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