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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2006.5
- 수록면
- 195 - 200 (6page)
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초록· 키워드
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This study is concerned with the development of a numerical formulation for the convolution integral which represents a current time response from all previous time history in asphalt concrete. To solve the initial/boundary value problem involving linear viscoelasticity, the constitutive equation, expressed in the convolution integral form connected with the relaxation modulus obtained from frequency sweep tests of asphalt concrete specimens, is numerically formulated into an incremental expression. The relaxation modulus call be resulted in the mechanical models consisting of linear springs and dashpots. The mechanical Wiechert model of relaxation modulus is formulated by Prony series used for the numerical integral formulation based on the linear viscoelasticity. For evaluation purpose, numerical examples involving a crosshead tension (or a constant-strain-rate-monotonic loading), a saw tooth shape loading, and a beam under tip load are incorporated into the validation of the numerical integration.
목차
Abstract
1. Introduction
2. Mechanical Model
3. Numerical Integration of Constitutive Equation
4. Tangent Modulus
5. Validation of Numerical Computation
6. Inversion Problem
7. Conclusion
References
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UCI(KEPA) : I410-ECN-0101-2009-531-019096345