(InPolish)
J. Marcinowski
Volume 548: Issue 4
Pages 107-109
Accepted for publication: 14.02.2018 r.
Significant stresses evoked by the temperature change can appear in layered, composite constructional members not only in cases when the designers have forgotten to ensure the freedom of deformations of the whole structure or its segment. Comparatively large stresses can appear also when particular structural members or their parts were fabricated from materials of different coefficients of thermal expansion. Such a case is presented in this paper. Analytical formulae on stresses and displacements evoked by the temperature change in two layered, composite rod fabricated from materials of different coefficients of thermal expansion is presented. Correctness of the derived formulae has been verified on the chosen examples by means of numerical simulations. It has been revealed that in some circumstances a temperature change can lead to the significant increase of stresses in both layers of the composite, structural member.
Keywords: composite construction; temperature change; stresses; deformations; analytical formulae; numerical simulations.
- Clyne T. W. 1996. „Residual stresses in surface coatings and their effects on interfacial debonding”. Key Engineering Materials, vol. 116/117: 307 – 330.
- COSMOS/M. 1999. Finite Element Analysis System, Version 2.5. Los Angeles. Structural Research and Analysis Corporation.
- Hetnarski Richard B., Reza Eslami M. 2009. „Thermal Stresses –Advanced Theory and Applications”. Solid Mechanics and its Applications, Vol. 158. Springer Science+Business Media, B.V.
- Marcinowski Jakub. 2015. „Wpływ gwałtownej zmiany temperatury na stan wytężenia silosów stalowych”. Materiały Budowlane 517 (9): 104 – 106. DOI: 10.15199/33.2015.09.41.
- Marcinowski Jakub. 2018. „Wpływ zmiany temperatury na rozkład naprężeń w powłoce naprawianej i w cienkiej warstwie naprawczej”. Przegląd Budowlany (3): 29 – 31.
- Szumigała Maciej, Marcin Chybiński, Łukasz Polus. 2017. „Preliminary analysis of the aluminium-timber composite beams”. Civil and Environmental Engineering Reports, CEER, 27 (4): 131 – 141.
dr hab. inż. Jakub Marcinowski, prof. Uniwersytet Zielonogórski, Wydział Budownictwa, Architektury i Inżynierii Środowiska
dr hab. inż. Jakub Marcinowski, prof. Uniwersytet Zielonogórski, Wydział Budownictwa, Architektury i Inżynierii Środowiska
Full paper is available at Publisher house SIGMA-NOT Sp. z o.o. webpage