Mechanical Investigation of the Healing Phenomenon of the PMMA
Source abstract
Abstract
An interesting feature of the amorphous polymers concerns their capacity to heal a residual deformation after a heat treatment. The study presented in this paper aims at understanding the mechanical origin of this healing phenomenon. A numerical investigation is used to simulate the scratch test on the PMMA and the heat treatment. The thermo-dependent mechanical behaviour model employed is briefly described. The healing process can be seen as a viscoelastic recovery phenomenon due to the strain hardening of the material. It is modelled by a rubber hyperelastic element which stores energy during the deformation. The viscosity of the material decreases because of the heat treatment which allows the release of the energy stored by the rubber hyperelasticity.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Tribology and Wear Analysis · Polymer crystallization and properties · Polymer Nanocomposites and Properties
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References (14)
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