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TECHNICAL PAPERS

Finite Element Analysis of Pulsed Laser Bending: The Effect of Melting and Solidification

[+] Author and Article Information
X. Richard Zhang, Xianfan Xu

School of Mechanical Engineering, Purdue University, West Lafayette, IN 47907-1288

J. Appl. Mech 71(3), 321-326 (Jun 22, 2004) (6 pages) doi:10.1115/1.1753268 History: Received August 29, 2001; Revised June 30, 2003; Online June 22, 2004
Copyright © 2004 by ASME
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References

Figures

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Schematic of the laser bending process
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Comparison between the results of FEA and an exact solution for (a) solidification, (b) melting
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Temperature distributions at different moments (E=270 μJ) (a) along the y-direction on the top surface, (b) along the z-direction (at y=0)
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Residual stress σyy distributions (E=270 μJ) (a) along the y-direction on the top surface, (b) along the z-direction (at y=0)
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Bending deformation along the y-direction (E=270 μJ)
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Transient thermal strain at the center point on the top surface
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Transient plastic strain at the center point on the top surface
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Transient total strain εyy at the center point on the top surface
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Transient transverse stress σyy at the center point on the top surface
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Bending angle as a function of laser pulse energy

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