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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 국제구조공학회 Structural Engineering and Mechanics, An Int'l Journal Structural Engineering and Mechanics, An Int'l Journal Vol.71 No.3
- 발행연도
- 2019.1
- 수록면
- 223 - 232 (10page)
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초록· 키워드
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Since the actuators with small- scale structures may be exposed to external reciprocal actions lead to create undesirable loads causing instability, the buckling behaviors of them are interested to make reliable or accurate actions. Therefore, the purpose of this paper is to analyze plastic buckling behavior of the micro beam structures by adopting a Conventional Mechanism-based Strain Gradient plasticity (CMSG) theory. The effect of length scale on critical force is considered for three types of boundary conditions, i.e. the simply supported, cantilever and clamped - simply supported micro beams. For each case, the stability equations of the buckling are calculated to obtain related critical forces. The constitutive equation involves work hardening phenomenon through defining an index of multiple plastic hardening exponent. In addition, the Euler-Bernoulli hypothesis is used for kinematic of deflection. Corresponding to each length scale and index of the plastic work hardening, the critical forces are determined to compare them together.
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참고문헌 (38)
참고문헌 신청
A. Acharya / 2000 / Grain-size effect in viscoplastic polycrystals at moderate strains / Journal of the Mechanics and Physics of Solids 48(10):2213~2230
Elias C. Aifantis / 1987 / The physics of plastic deformation / International Journal of Plasticity 3(3):211~247
Elias C. Aifantis / 2009 / Exploring the applicability of gradient elasticity to certain micro/nano reliability problems / Microsystem Technologies 15(1):109~115
A Arsenlis / 1999 / Crystallographic aspects of geometrically-necessary and statistically-stored dislocation density / Acta Materialia 47(5):1597~1611
Haoxuan Ban / 2017 / The coupling effect of size and damage in micro-scale metallic materials / International Journal of Plasticity 95:251~263
Elias C. Aifantis / 1987 / The physics of plastic deformation / International Journal of Plasticity 3(3):211~247
Elias C. Aifantis / 2009 / Exploring the applicability of gradient elasticity to certain micro/nano reliability problems / Microsystem Technologies 15(1):109~115
A Arsenlis / 1999 / Crystallographic aspects of geometrically-necessary and statistically-stored dislocation density / Acta Materialia 47(5):1597~1611
Haoxuan Ban / 2017 / The coupling effect of size and damage in micro-scale metallic materials / International Journal of Plasticity 95:251~263
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