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

<div>Bending distribution of fibers around steel needles: (a) three cases of bending around the needle; (b) oblique 45° of needle cross section; (c) top view of needle cross section.</div>

Mathematical Problems in Engineering

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Figure 4

Figure 4: Reducing the Collision Damage Done to the Tips of Steel Needles during Integrated Piercing by Using Shape Optimization with Feature Selection 

Figure 4 | Reducing the Collision Damage Done to the Tips of Steel Needles during Integrated Piercing by Using Shape Optimization with Feature Selection 