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http://dx.doi.org/10.14775/ksmpe.2022.21.04.053

Enhanced First-Order Shear Deformation Theory for Thermo-Mechanical-Viscoelastic Analysis of Laminated Composite Structures  

Kim, Jun-Sik (Department of Mechanical System Engineering, Kumoh National Institute of Technology)
Han, Jang-Woo (Department of Mechanical Design Engineering, Kumoh National Institute of Technology)
Publication Information
Journal of the Korean Society of Manufacturing Process Engineers / v.21, no.4, 2022 , pp. 53-59 More about this Journal
Abstract
In this study, an enhanced first-order shear deformation theory is proposed to efficiently and accurately predict the thermo-mechanical-viscoelastic coupled behavior of laminated composite structures. To this end, transverse shearstress and displacement fields are independently assumed, and the strain-energy relationship between these fields issystematically established using the mixed variational theorem (MVT). In MVT, the transverse shear stress fields are obtained from the third-order zigzag model, whereas the displacement fields of the conventional first-order model are considered to amplify the benefits of numerical efficiency. Additionally, a transverse displacement field with a smooth parabolic distribution is introduced to accurately predict the thermal behavior of composite structures. Furthermore, the concept of Laplace transformation is newly employed to simplify the viscoelastic problem, similar to the linear-elastic problem. To demonstrate the performance of the proposed theory, the numerical results obtained herein were compared with those available in the literature.
Keywords
Laminated Composites; Thermo-Mechanical-Viscoelastic Analysis; Laplace Transformation; Mixed Variational Theorem;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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1 Oh, J., and Cho, M., "Higher-order zig-zag theory for smart composite shells under mechanical-thermo-electric loading," International Journal of Solids and Structures, Vol. 44, pp. 100-127, 2007.   DOI
2 Han, J. W., Kim, J. S., and Cho, M., "Improved Finite Element Viscoelastic Analysis of Laminated Structures via the Enhanced First-Order Shear Deformation Theory," Composite Structures, Vol. 180, pp. 360-377, 2017.   DOI
3 Kapuria, S., and Achary, G. G. S., "An efficient higher order zigzag theory for laminated plates subjected to thermal loading," International Journal of Solids and Structures, Vol. 41, pp. 4661-4684, 2004.   DOI
4 Pagano, N. J., "Exact Solutions for Composite Laminates in Cylindrical Bending," Journal Composite Materials, Vol. 3, pp. 398-411, 1969.   DOI
5 Han, J. W., Kim, J. S., and Cho, M., "Efficient Thermal Stress Analysis of Laminated Composite Plates using Enhanced First-order Shear Deformation Theory," International Journal of Solids and Structures, Vol. 25, No. 6, pp. 505-512, 2012.
6 Reissner, E., "The effect of transverse shear deformation on the bending of elastic plates," Journal of Applied Mechanics, Vol. 12, pp. 69-77, 1945.
7 Kim, J. S., and Cho, M., "Enhanced first-order theory based on mixed formulation and transverse normal effect," International Journal of Solids and Structures, Vol. 44, pp. 1256-1276, 2007.   DOI
8 Kim, J. K., Choi, S. H., Kim, Y. K., Kim, H. G. and Kwac, L. G., "Finite Element Method Based Structural Analysis of Z-Spring with CF&GF Hybrid Prepreg Lamination Patterns," Journal of the Korean Society of Manufacturing Process Engineers, Vol. 20, No. 3, pp. 60-67, 2021.
9 Cho, M., and Parmerter, R R., "An efficient higher order plate theory for laminated composites," Composite Structures, Vol. 20, pp. 113-123, 1992.   DOI