Yield Surface Explorer

VEGTER 2017 CONVEX · BBC-05 CONVEX · Manual

VEGTER 2017 — PARAMETERS

σ_un — Uniaxial RD (MPa) [50 – 2000] · default 200

σ_ps — Plane-strain RD (MPa) [50 – 2500] · default 240

σ_sh — Pure-shear RD (MPa) [30 – 1200] · default 120

σ_eb — Equibiaxial (MPa) [50 – 2000] · default 210

r₀ — rolling direction (0°) [0.30 – 3.00] · default 0.80

r₄₅ — diagonal (45°) [0.30 – 3.00] · default 1.20

r₉₀ — transverse direction (90°) [0.30 – 3.00] · default 1.00

PRESETS

FIG 1 · NORMALISED YIELD LOCUS — σ₁/σ₀ vs σ₂/σ₀

▬ VEGTER 2017 ▬ BBC-05 ··· VON MISES (REF) VEGTER ANCHORS · σ_un / σ_ps / σ_sh / σ_eb

BBC-05 — PARAMETERS

a (yield fn weight) [0.10 – 3.00] · default 0.890

b (yield fn weight) [0.10 – 3.00] · default 0.920

L — matrix coeff [0.10 – 3.00] · default 1.080

M — matrix coeff [0.10 – 3.00] · default 0.800

N — matrix coeff [0.10 – 3.00] · default 1.150

P — matrix coeff [0.10 – 3.00] · default 1.050

Q — matrix coeff [0.10 – 3.00] · default 0.920

R — matrix coeff [0.10 – 3.00] · default 1.000

k — exponent

k = 3 (BCC steel) k = 4 (FCC aluminium)

σ_y — reference yield (MPa) [50 – 2000] · default 200

PRESETS