Definition
Mechanically generated heat can be defined as heat produced by mechanical processes, involving motion and deformation of matter. In this entry, we will mostly focus on heat generated by deformation in elasto-viscoplastic solids as well as by frictional contact. These heat sources play a significant role in many industrial processes, such as metal forming and friction welding.
Overview
Temperature can have a significant effect on mechanical behavior of materials such as metals or polymers. Conversely, mechanical activity can be at the origin of heat generation (or absorption), contributing to thermal transfers within the material. Such thermomechanical coupling effects originate from various micro-mechanical processes. They can be classified in two broad categories: entropic effects and dissipative effects. Entropic effects are linked to variations of the mechanical entropy, hence the name. They are reversible, in the sense that if a given evolution of the mechanical state...
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Stainier, L. (2014). Mechanically Generated Heat. In: Hetnarski, R.B. (eds) Encyclopedia of Thermal Stresses. Springer, Dordrecht. https://doi.org/10.1007/978-94-007-2739-7_447
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DOI: https://doi.org/10.1007/978-94-007-2739-7_447
Publisher Name: Springer, Dordrecht
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