Laser swelling of polymer-like materials by nanosecond pulses: modeling

机译：通过纳秒脉冲激光溶胀聚合物样材料：建模

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Mechanisms of laser swelling of polymers are considered. A theoretical model for one of the mechanisms is studied in detail. According to this model, swelling is provided by a thermo-elastic wave generated in the material by the laser pulse. The tensile stresses in this wave result in elastic and plastic deformation of polymer in the heated region and formation of a hump structure. The value of the threshold laser pulse fluence for the permanent hump formation and an expression for the permanent hump height are obtained analytically. The model allows us to explain earlier experimental data on laser swelling of PMMA film by UV laser pulses.

机译：考虑了聚合物的激光溶胀机制。详细研究了一种机制的理论模型。根据该模型，通过激光脉冲在材料中产生的热弹性波提供膨胀。该波中的拉伸应力导致加热区域中的聚合物的弹性和塑性变形和形成驼峰结构。分析地获得了永久驼峰形成的阈值激光脉冲的值和永久驼峰高度的表达。该模型允许我们通过UV激光脉冲解释PMMA膜的激光溶胀的早期实验数据。

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《International Conference on Lasers, Applications, and Technologies》|2006年||共8页
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A. Yu. Malyshev; N. M. Bityurin; SPIE-The International Society for Optical Engineering; Russian Academy of Sciences; M.V.Lomonosov Moscow State University(Russia);
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中图分类 N-532;
关键词
laser swelling; polymer; UV laser pulses;

机译：激光溶胀;聚合物;UV激光脉冲;

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1. Laser swelling model for polymers irradiated by nanosecond pulses [J] . Malyshev AY, Bityurin NM Quantum electronics . 2005,第9期

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4. Laser swelling of polymer-like materials by nanosecond pulses: modeling [C] . A. Yu. Malyshev, N. M. Bityurin International Conference on Lasers, Applications, and Technologies; 20050511-15; St.Petersburg(RU) . 2006

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5. Predictive modeling, simulation, and optimization of laser processing techniques: UV nanosecond-pulsed laser micromachining of polymers and selective laser melting of powder metals. [D] . Criales Escobar, Luis Ernesto. 2016

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Laser swelling of polymer-like materials by nanosecond pulses: modeling

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