Comprehension of the heat transfer process and associated thermo-mechanical interaction with skin tissue is the key issue on successful application of thermal treatment techniques. The purpose of this paper is to explore thermo-mechanical behavior taking place the instantaneously heated skin tissue via an analytical approach. The generalized thermo-elastic model involving dual-phase-lag model of bioheat transfer is proposed, in which a multi-layer skin structure is employed to represent variable thermal and mechanical properties with spatial location and temperature. Due to the Laplace transform and its limit theorem, an analytical procedure is then imposed on this generalized thermo-elastic model, in which the nonlinear terms involving variable properties are linearized prior to the solution of governing equations. The thermo-elastic response of skin tissue subjected to a sudden heating on its boundary is solved by this analytical approach. The exact solutions of each physical field can be obtained and its distributions are illustrated. The effects of phase lags, layered characteristics of thermal properties and temperature dependence on heat transport and evocative thermo-mechanical interaction are studied. The contribution of heat-induced stress on thermal pain is also evaluated.

理解热传递过程以及与皮肤组织的热机械相互作用是成功应用热处理技术的关键问题。本文的目的是通过分析方法探讨发生在瞬时加热的皮肤组织上的热机械行为。提出了包含生物热传递的双相滞后模型的广义热弹性模型，其中采用多层蒙皮结构表示具有空间位置和温度的可变热力学性能。由于拉普拉斯变换及其极限定理，然后对该广义热弹性模型进行了分析，其中在控制方程求解之前将涉及可变属性的非线性项线性化。通过这种分析方法可以解决皮肤组织在其边界上突然加热的热弹性反应。可以获得每个物理场的精确解，并说明了其分布。研究了相位滞后，热性能的分层特性以及温度对传热和回弹热机械相互作用的影响。还评估了由热引起的压力对热痛的贡献。