TY - JOUR T1 - Curvature Analysis in a Bi-layered Non-linear Elastic Bar under Uniform Heating AU - Rizov, Victor PY - 2023 DA - December DO - 10.55549/epstem.1404326 JF - The Eurasia Proceedings of Science Technology Engineering and Mathematics JO - EPSTEM PB - ISRES Publishing WT - DergiPark SN - 2602-3199 SP - 150 EP - 156 VL - 25 LA - en AB - The present theoretical paper is concerned with analysis of the curvature in a bi-layered bar of rectangular cross-section. The bar is subjected to uniform heating. The two layers of the bar have different thickness and material properties. Besides, the layers exhibit non-linear elastic mechanical behaviour that is treated by applying a power-law stress-strain constitutive relationship. The bi-layered bar curvature is studied analytically. For this purpose, the mechanical response of the bar to uniform heating is investigated. The strains in the two layers due to heating are analyzed. An equation is compiled by using the fact that the prolongations of the bar layers are equal. Two equations are worked out by considering the equilibrium of the layers. The analysis of the curvature presented in this paper is checked-up by comparing with a known solution for the curvature in a bi-layered linear-elastic bar under uniform heating. The uniform heating induced curvature in a bi-layered bar whose layers are continuously inhomogeneous in longitudinal direction is also studied. KW - Curvature KW - Bi-layered bar KW - Uniform heating KW - Continuous inhomogeneity CR - Dolgov, N. (2005). Determination of Stresses in a two-layer coating. Strength of Materials, 37, 422-431. CR - Dolgov, N. (2016). Analytical methods to determine the stress state in the substrate–coating system under mechanical loads. Strength of Materials, 48(5), 658-667. CR - Gasik, M. M. (2010). Functionally graded materials: bulk processing techniques. International Journal of Materials and Product Technology, 39(1), 20-29. UR - https://doi.org/10.55549/epstem.1404326 L1 - https://dergipark.org.tr/en/download/article-file/3597091 ER -