Research Article

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

Figure 13

Contour relationships among σ, Fmax, and dned: (a) point A′ for 0 to 10 N; (b) point A′ for 10 to 50 N; (c) point A″ for 0 to 10 N; (d) point A″ for 10 to 50 N.
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(b)
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