首页> 外文期刊>Journal of thermal stresses >THERMAL STRESSES AND END-BULGING IN CYLINDRICAL LASER RODS UNDER LONGITUDINAL DIODE LASER PUMPING
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THERMAL STRESSES AND END-BULGING IN CYLINDRICAL LASER RODS UNDER LONGITUDINAL DIODE LASER PUMPING

机译:纵向二极管激光泵浦下圆柱激光棒的热应力和端凸

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摘要

Three-dimensional thermo-mechanical finite element analysis of conventional and composite cylindrical laser rods under the conditions of longitudinal pumping of the continuous wave diode laser is presented. First, the heat conduction problem with prescribed cooling boundary conditions is solved. Then, the 3D stress and bulging of entrance and exit faces are analyzed. It is shown that the frequently used plane strain and plane stress approximations significantly overestimate the values of face bulging of conventional and particularly composite laser rods under the conditions of homogeneous and inhomogeneous heating.
机译:提出了在连续波二极管激光器的纵向泵浦条件下,常规和复合圆柱激光棒的三维热机械有限元分析。首先,解决具有预定冷却边界条件的导热问题。然后,分析3D应力和入口和出口面的凸出。结果表明,在均匀加热和不均匀加热条件下,常用的平面应变和平面应力近似值明显高估了传统激光棒,尤其是复合激光棒的端面凸出值。

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