Experimental and Numerical Analysis of Stainless Steel Microtube in Flaring Process

Table 1

Microtube material parameter (unit: mm).

Material	𝐸 (Gpa)	𝜎𝑦 (MPa)	𝐾(MPa)	𝑛	𝜀0
SUS316L	358	287	1404.88	0.582	0.077

The true stress-strain curve is approximated by 𝜎(𝑡,𝜀)=0.73667𝐾𝑒^0.3152𝑡(𝜀₀+𝜀_𝑝)^{𝑛(1.0106𝑒−0.01029𝑡−1)}; 𝜈=0.3; 𝐸: Young’s modulus; and 𝜎_𝑦: yield stress.