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

Table 9

Theoretical displacements of optimized example.

Group no.	L1 (mm)	m	Fmax (N)	E (Pa)	L2 (mm)	dned (mm)	(mm)
1	5	2	15	2.11 × 10^9	7.95	1.159	0.206
2	5	2	15	2.11 × 10^9	10	1.159	0.289
3	5	2	15	2.11 × 10^9	7.95	1.0	0.321
4	5	2	15	2.11 × 10^9	10	1.0	0.450