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Smart Structures and Systems Volume 26, Number 3, September 2020 , pages 311-318 DOI: https://doi.org/10.12989/sss.2020.26.3.311 |
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Non-stochastic uncertainty response assessment method of beam and laminated plate using interval finite element analysis |
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Quoc Hoan Doan, Anh Tuan Luu, Dongkyu Lee, Jaehong Lee and Joowon Kang
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| Abstract | ||
| The goal of this study is to analytically and non-stochastically generate structural uncertainty behaviors of isotropic beams and laminated composite plates under plane stress conditions by using an interval finite element method. Uncertainty parameters of structural properties considering resistance and load effect are formulated by interval arithmetic and then linked to the finite element method. Under plane stress state, the isotropic cantilever beam is modeled and the laminated composite plate is crossply lay-up [0/90]. Triangular shape with a clamped-free boundary condition is given as geometry. Through uncertainties of both Young's modulus for resistance and applied forces for load effect, the change of structural maximum deflection and maximum von-Mises stress are analyzed. Numerical applications verify the effective generation of structural behavior uncertainties through the non-stochastic approach using interval arithmetic and immediately the feasibility of the present method. | ||
| Key Words | ||
| structural uncertainties; laminated composite plate; finite element method; interval arithmetic | ||
| Address | ||
| (1) Quoc Hoan Doan, Anh Tuan Luu, Dongkyu Lee, Jaehong Lee: Department of Architectural Engineering, Sejong University, Seoul 05006, Republic of Korea; (2) Joowon Kang: Department of Architecture, Yeungnam University, Gyeongsan 38541, Republic of Korea. | ||