Effect of inclusion matrix model on temperature and thermal stress fields of K9-glass damaged by long-pulse laser

Yunxiang Pan; Bin Wang; Zhonghua Shen; Jian Lu; Xiaowu Ni

doi:10.1117/1.OE.52.4.044302

12 April 2013 Effect of inclusion matrix model on temperature and thermal stress fields of K9-glass damaged by long-pulse laser

Yunxiang Pan, Bin Wang, Zhonghua Shen, Jian Lu, Xiaowu Ni

Author Affiliations +

Optical Engineering, Vol. 52, Issue 4, 044302 (April 2013). https://doi.org/10.1117/1.OE.52.4.044302

Abstract

A model containing an inclusion matrix heated by a millisecond laser is proposed to calculate temperature and thermal stress fields of K9-glass using a finite element method. First, the evolution of temperature and thermal stress fields is analyzed. Results show that both the upper and lower surfaces are damaged. K9-glass is primarily damaged by the combination of radial and axial stresses. Calculated damage morphology is mainly determined by radial stress. Then damage morphology evolution with the increase of the incident laser energy is investigated, which shows that damage area spreads inward from both the front and rear surfaces. Finally, experimental results of long-pulse laser damage of K9-glass are analyzed. The comparison of numerical results with experimental observations shows a good correlation in damage morphology, which indicates that the built inclusion matrix model is applicable to long-pulse laser damage in K9-glass.

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Yunxiang Pan, Bin Wang, Zhonghua Shen, Jian Lu, and Xiaowu Ni "Effect of inclusion matrix model on temperature and thermal stress fields of K9-glass damaged by long-pulse laser," Optical Engineering 52(4), 044302 (12 April 2013). https://doi.org/10.1117/1.OE.52.4.044302

Published: 12 April 2013

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