Study on numerical simulation of the dynamic impact effect for optical glass grinding with single grit

Jiang Chen; Feihu Zhang; Zhao Hang; Zhang Yong; Jianbo Su

doi:10.1117/12.978250

15 October 2012 Study on numerical simulation of the dynamic impact effect for optical glass grinding with single grit

Jiang Chen, Feihu Zhang, Zhao Hang, Zhang Yong, Jianbo Su

Proceedings Volume 8415, 6th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes; 841515 (2012) https://doi.org/10.1117/12.978250
Event: 6th International Symposium on Advanced Optical Manufacturing and Testing Technologies (AOMATT 2012), 2012, Xiamen, China

Abstract

It studies failure mechanism of optical glass with impact stress from grit, according to the dynamic impact effect in the process of optical glass grinding with single grit. With the distribution regularity of crack which from the grit dynamic impact, it established mathematical model of cylindrical stress wave which coaxial with wavefront. Analyzing and establishing the control equations for cylindrical stress wave, using finite-difference technique to simulate the dynamic impact effect for optical glass grinding with single grit and adopting Zwas numerical methods with source term hyperbolic curve partial differential equations to analysis and study the dissemination rule, diffusion rule and change rule, the simulation analysis shows that in the dissemination process of grit impact wave , wavefront occurred diffusion and there are tensile stress generated as well as oscillation.

Citation Download Citation

Jiang Chen, Feihu Zhang, Zhao Hang, Zhang Yong, and Jianbo Su "Study on numerical simulation of the dynamic impact effect for optical glass grinding with single grit", Proc. SPIE 8415, 6th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes, 841515 (15 October 2012); https://doi.org/10.1117/12.978250

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