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Simulation on Stress Control of Laser Irradiated Fused Silica on ANSYS
Author(s): 
Pages: 870-874
Year: Issue:  6
Journal: Journal of University of Electronic Science and Technology of China

Keyword:  去应力退火 激光辐照 仿真 应力场 温度场;
Abstract: 基于ANSYS平台,对激光辐照熔石英的过程进行动态模拟,分析了温度场和熔池形状、应力场的变化及残余应力分布,并对高温退火去应力的情况进行了仿真。结果表明,激光辐照过程中辐照中央的温度最高,辐照边缘具有较大的温度梯度;冷却至室温后,辐照中央存在较大的拉应力,辐照边缘存在较大的压应力,经过退火后残余应力明显减小。
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