High Strain-Rate Material Model Validation for Laser Peening Simulation

High Strain-Rate Material Model Validation for Laser Peening Simulation

Finite element modeling can be a powerful tool for predicting residual stresses induced by laser peening; however the sign and magnitude of the stress predictions depend strongly on how the material model captures the high strain rate response. Although a Johnson-Cook formulation is often employed,...

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Bibliographic Details
Main Authors: Kristina Langer, Steven Olson, Robert Brockman, William Braisted, Thomas Spradlin, Michael E. Fitzpatrick
Format: Article
Language:English
Published: Wiley 2015-09-01
Series:The Journal of Engineering
Subjects:
laser beam applications
finite element analysis
internal stresses
impact testing
compressive testing
high-strain material validation
laser peening simulation
finite element modeling
residual stress prediction magnitude
residual stress prediction sign
high-strain rate response
Johnson- Cook formulation
low-strain rate material data
split Hopkinson bar testing
shock response prediction
high-impact flyer plate tests
quasistatic compression testing
FE simulations
laser peen-induced stress prediction
Online Access:http://digital-library.theiet.org/content/journals/10.1049/joe.2015.0118

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http://digital-library.theiet.org/content/journals/10.1049/joe.2015.0118

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