Numerical simulation of shot peening of aluminum alloy surface for hydrogen storage
The 3D finite element model of 6061-T6 aluminum alloy shot peening with a number of random projectiles was established using finite element analysis software ABAQUS,the effects of projectile velocity and projectile number on residual stress distribution and surface roughness are investigated.The results show that with the increase of the projectile velocity,residual compressive stress peak value,the residual compressive stress layer depth and the surface roughness increases,but the depth of the residual compressive stress peak value change is very small.Increase the number of the projectile on the residual compressive stress peak value increase significantly,on the depth of the residual compressive stress peak and residual compressive stress layer depth,surface roughness increases gradually and tends to be stable.
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