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首页> 外文期刊>Physica Scripta: An International Journal for Experimental and Theoretical Physics >Response of thermoviscoelastic microbeams affected by the heating of laser pulse under thermal and magnetic fields
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Response of thermoviscoelastic microbeams affected by the heating of laser pulse under thermal and magnetic fields

机译：热能和磁场下激光脉冲加热影响的热煤层弹性微观响应

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摘要

In the current study, we presented a new thermoviscoelastic Kelvin-Voigt model to describe the behavior of microbeams taking into account the influence of the temperature change and applied magnetic field. The non-Fourier heat conduction with the interaction of a permanent magnet field is taken into consideration in our modeling. Based on the Euler-Bernoulli beam theory, Maxwell's equations, and the generalized thermoelasticity with dual-phase lags, the system of governing equations of the model are derived. The microbeam is affected by femtosecond laser heating. A numerical technique based on the Laplace transform method is exploited to obtain the solution to the problem. The effects of the boundary, viscosity, laser intensity, and magnitude of the magnetic field on microbeam are examined in several cases in detail. The results showed that the effect of coupling significantly improves the thermal wave and delays the stress wave duration.
机译：在当前的研究中，我们提出了一个新的热粘弹性开尔文-沃伊格特模型来描述微束的行为，考虑了温度变化和外加磁场的影响。在我们的建模中，考虑了永磁体场相互作用下的非傅立叶热传导。基于Euler-Bernoulli梁理论、麦克斯韦方程组和具有双相滞后的广义热弹性力学，导出了该模型的控制方程组。微束受到飞秒激光加热的影响。利用基于拉普拉斯变换方法的数值技术来获得问题的解。在几种情况下，详细研究了边界、粘度、激光强度和磁场大小对微束的影响。结果表明，耦合效应显著改善了热波，延迟了应力波的持续时间。

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