Dynamic Thermoelastic Behavior in Sheet Glass Generated by Pulsed Laser Irradiation Using a One-Dimensional Model | Zendy

Akira Chibá | Zendy; Hirofumi Hidai | Zendy; Souta Matsusaka | Zendy; Noboru Morita | Zendy

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Dynamic Thermoelastic Behavior in Sheet Glass Generated by Pulsed Laser Irradiation Using a One-Dimensional Model

Author(s) -

Akira Chibá,

Hirofumi Hidai,

Souta Matsusaka,

Noboru Morita

Publication year - 2014

Publication title -

international journal of automation technology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.513

H-Index - 18

eISSN - 1883-8022

pISSN - 1881-7629

DOI - 10.20965/ijat.2014.p0847

Subject(s) - thermoelastic damping , materials science , irradiation , stress (linguistics) , laser , optics , pulse (music) , thermal , mechanics , slab , displacement (psychology) , composite material , structural engineering , thermodynamics , physics , psychology , linguistics , philosophy , detector , nuclear physics , psychotherapist , engineering

The dynamic thermoelastic behavior of a sheet glass subjected to single-pulse laser irradiation is clarified using a one-dimensional model. From the equation of motion for this system, a thermoelastic equation was derived and applied in the analysis. For a 0.1-µs pulse duration, the displacement and thermal stress caused by the thermal expansion within the slab show oscillatory wave characteristics. When thermal stress waves are reflected at the free ends of the sheet glass, the polarity of the stress changes. Alternating stress waves of approximately 0.5-MHz frequency appear in the slab. With cracks propagating in the glass as a result of stress, high-cycle fatigue is possible. We confirm that the dynamic behavior generated by single-pulsed laser irradiation features wavelike properties.

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