Study of thermal stress behavior of sheet glass during laser irradiation using one-dimensional elastic wave model

被引：0

作者：

Chiba, Akira ^{[1
]}

Matsusaka, Souta ^{[1
]}

Hidai, Hirofumi ^{[1
]}

Morita, Noboru ^{[1
]}

机构：

[1] Chiba Univ, Dept Mech Engn, Inage Ku, Chiba 2638522, Japan

来源：

JOURNAL OF ADVANCED MECHANICAL DESIGN SYSTEMS AND MANUFACTURING | 2014年 / 8卷 / 01期

关键词：

Thermal stress; Laser; Cleaving; Moving heat source; Glass; Wave; Simulation;

D O I：

10.1299/jamdsm.2014jamdsm0003

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The thermoelastic behavior of sheet glass during laser irradiation was clarified using a one-dimensional model. A thermoelastic equation based on an equation of motion with the damping force proportional to the deformation velocity was applied. The thermal and thermoelastic equations were numerically solved by the finite difference method based on an implicit method for the time evolution. A proportional damping coefficient (PDC) was adopted for the calculation. In the case of a stationary heat source, compressive stress on the heated region changed into tensile stress 0.1 s after the end of heating. In the case of a moving heat source, the highest tensile stress was induced when the PDC was less than 0 1 An optimal combination of velocity and the PDC that induced the maximum tensile stress was obtained.

引用

页数：11