Propagation of shock wave induced by ring laser and its effect on spalling
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Corresponding author:
JIANG Yin-fang, yfjiang@ujs.edu.cn
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Received Date:
2012-08-27
Accepted Date:
2012-10-15
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Abstract
Theoretical analysis and numerical simulation on the process of ring laser shock forming were conducted with software ABAQUS in this paper to investigate the propagation of shock wave induced by ring laser and its effect on spalling.By defining nodal path,the propagation rule of shock wave induced by ring laser along the direction of thickness was obtained,which shows the occurring time and position of maximum tensile stress along thickness under certain condition.Spalling rule of sheet metal with ring laser shock forming was explored in the perspective of stress wave,whose results indicate that spalling is liable to occur in shocked areas for ring laser while in center of sheet metal for solid area laser,which provides a new approach to study laser shock forming.
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