Laser Shock Peening: Residual Stress Simulator

Laser shock peening fires nanosecond laser pulses through a water-confinement layer to generate GPa-scale shockwaves that plastically deform a thin surface layer of metal, leaving behind a compressive residual-stress field that resists fatigue-crack initiation. This simulator implements the Fabbro shock-pressure equation to convert laser intensity, pulse duration and water confinement into a real peak pressure, compares it against each material's Hugoniot Elastic Limit to determine whether — and how deep — plastic deformation occurs, and renders the resulting compressive-to-tensile residual-stress profile in 3D beneath a row of overlapping laser spots, alongside a live depth-vs-stress chart.