Reducing the Collision Damage Done to the Tips of Steel Needles during Integrated Piercing by Using Shape Optimization with Feature Selection

<div>Stress distributions of the hazardous section of the steel needle: (a) stress distribution of <i>F</i><sub>1</sub>; (b) stress distribution of <i>M</i><sub>2</sub>; (c) axial stress distribution.</div>

Mathematical Problems in Engineering

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Figure 8

Figure 8: Reducing the Collision Damage Done to the Tips of Steel Needles during Integrated Piercing by Using Shape Optimization with Feature Selection 

Figure 8 | Reducing the Collision Damage Done to the Tips of Steel Needles during Integrated Piercing by Using Shape Optimization with Feature Selection 