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Skin Thermomechanical Modeling: Assessing the Influence of Water and Ambient Air

Authors :

Pezhman Namashiri¹ Akbar Allahverdizadeh² Fatemeh Khodadoost³ Farid Vakili-Tahami⁴

1- University of Tabriz 2- University of Tabriz 3- University of Tabriz 4- University of Tabriz

Keywords :

Bioheat transfer،Thermal stress،Thermomechanical coupling،Burn treatment،Biothermomechanics،Computational biomechanics

Abstract :

Skin burn is one of the dangerous incidents that threatens human life on a regular basis. In this study, a thermomechanical model is developed to simulate skin burn by utilizing a multilayer three-dimensional framework of skin that includes the stratum corneum, epidermis, dermis, and subcutaneous tissue. The Pennes model describes bioheat transfer of the tissue. Linear elasticity was utilized for defining skin mechanics. Thermal expansion was incorporated to define the coupling between heat transfer and skin mechanics. In order to investigate the skin cooling response, the influence of ambient air and water on temperature distribution and mechanical response of the skin were analyzed. The findings revealed that that heating causes the top layers of the skin to increase in temperature, but has a minimal impact on the temperature increase of the subcutaneous tissue. Moreover, when water was employed for cooling, the temperature of the skin surface reduced significantly in comparison to the case where ambient air was used. The mechanical behavior illustrated the significant effect of temperature on thermal response. The presented thermomechanical model provides readily implementation with straightforward reproducibility.