Mechanical Engineering Faculty Research
Title
Thermomechanical Loading of Multilayered Cylindrical Geometries in Thermal Cycling from 300 to 1300 K
Document Type
Article
Publication Date
3-1983
Abstract
The principal of multiple material layering is well known as an effective method of reducing heat transfer; however, thermal gradients can impose significant loads and lead to delamination and subsequent component failure. An analysis is developed and experimental data are discussed for the thermomechanical effects of multilayered materials on a heat sink substrate of cylindrical geometry subject to thermal cycling. The geometry is heated in cross-flow by a high-velocity flame and cooled in crossflow by ambient-temperature air from a critical flow orifice. Each layer of material possesses a threshold beyond which small changes in temperature or mechanical loading greatly influence the life in thermal cycling of the layered materials. Comparisons are made between the thermomechanical loads predicted by various numerical codes for the linear case and by a simplified analytic model.
Publication Title
Proceedings of the Thermal Engineering Joint Conference
Recommended Citation
Hendricks, Robert C.; McDonals, G.; Mullen, R. L.; Braun, Minel J.; Chung, Benjamin T.F.; and Padovan, J., "Thermomechanical Loading of Multilayered Cylindrical Geometries in Thermal Cycling from 300 to 1300 K" (1983). Mechanical Engineering Faculty Research. 1050.
https://ideaexchange.uakron.edu/mechanical_ideas/1050