Issue 78

V. I. Kolesikov et alii, Fracture and Structural Integrity, 78 (2026) 220-232; DOI: 10.3221/IGF-ESIS.78.13

The variables and parameters in Eqns. (2)-(5) are listed in Tab. 2, along with the additional parameters used in the DAMASK Spectral Solver. The sensitivity analysis on various parameters in used phenomenological model was demonstrated in [17]. No thermal effects were accounted for in the model.

Value

Definition

Cu

Martensite (40CrNiMo)

̇ ̇ ′ ′ ̇ ∞

slip system

resolved shear stress (analogous to Schmid’s law)

vector in slip/shear direction

vector along plane being normal to the respective slip system

Variable

plastic shear rate along each slip system

hardening/resistance behavior/kinetics of a slip system

hardening matrix

0.6

2.0, 2.0

slip hardening

strain rate sensitivity

20

20, 20

Parame ter

[1, 1, 1.4, 1.4, 1.4, 1.4, 1.4] (vector)

[1, 1.4, 1, 1.4, 1.4, 1.4, 1.4, 1.4, 1.4, 1.4, 1.4, 1.4, 1.4, 1.4, 1.4, 1.4, 1.4, 1.4, 1.4, 1.4, 1.4, 1.4, 1.4, 1.4] (vector)

latent hardening for (coplanar) and [otherwise] slips

reference shear rate, s -1

0.003

0.001, 0.001

initial slip resistance to plastic flow, MPa

1.6

405.8, 456.7

saturation stress or resistance to plastic flow, MPa

96.4

872.9, 971.2

slip hardening, MPa

0.35

563.0, 563.0

C 11

168.9

250

elastic stiffness constants from elasticity matrix, GPa

C 12

121.8

150

C 44 _

75.8

120

lattice structure

fcc

bcc

number of slip systems

[12]

[12, 12]

Table 2: Designations [22], meanings and values of parameters [23] in phenomenological model for crystal plasticity simulations of interfacial contact in DAMASK Spectral solver.

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