ABAQUS user subroutines for the simulation of viscoplastic - loicz

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parameters of Tables 2 and 3, and the damage evolution during the creep processes are shown in Fig. 1. 18
ε i 4 [%] 3 2 1 E 149650 MPa ν 0.33 a 311 MPa K 397 MPa⋅h 1/n n 7.7 b 317 R0 153 MPa φ∞ 1.1 c 201 R∞ 0.0 MPa ω 0.04 r 3.8 d 81.72 MPa/h Table 2: Material parameters of the CHABOCHE model for IN 738 LC at 850 °C. β q B0 m DI 0.0 ∼ 1.0 0.4 613 MPa·h 1/m 14 0.07 Table 3: Material parameters of the damage model for IN 738 LC at 850 °C Uniaxial Creep (IN738 LC, 850°C) σ=335 MPa, Exp. σ=392 MPa, Exp. σ=410 MPa, Exp. Chaboche-model model with damage 0 0 20 40 time [h] 60 0.2 0.1 σ=410 MPa σ=392 MPa σ=335 MPa 0.0 0 20 40 time [h] 60 19
Page 1 and 2: Technical Note GKSS/WMS/01/5 intern
Page 4 and 5: 0. Nomenclature 3 1. Introduction 7
Page 6 and 7: R ∞ Wi Z I , Z D Zij 6 saturated
Page 8 and 9: W internal variable, eq. (20b) four
Page 10 and 11: where S is the CAUCHY stress tensor
Page 12 and 13: 12 0 for x ≤ xm 1 h(x) = 2 1− c
Page 14 and 15: flow rule: E Ý i = p Ý ˜ S ′
Page 16 and 17: 16 −1 −1 D1 = 0 , L1 = 0, Z i1
Page 20 and 21: 20 Fig. 1. Experiments and model pr
Page 22 and 23: 22 Fig. 3. Contour plots of the max
Page 24 and 25: 24 Fig. 5. Contour plots of directi
Page 26 and 27: 26 Fig. 6. FE-mesh and loading cond
Page 28 and 29: 28 Fig. 13. FE-mesh and loading con
Page 30 and 31: proove that the model performs well
Page 33 and 34: 6. References AI, S.H.; LUPINC, V.
Page 35 and 36: 7. Appendices: ABAQUS-Inputfiles 7.
Page 37 and 38: ** auflagerung ** *BOUNDARY, OP=NEW
Page 39 and 40: ** E, nu, Do, n, K1, K2, K3, m1 149
Page 41 and 42: ** ====== 2. load ein ** *STEP, INC
Page 43 and 44: 7.3 Appendix 3: Single crystal plat
Page 45 and 46: *NODE FILE, FREQUENCY=0 *EL FILE, F
Page 47 and 48: 7.4 Appendix 4: TiAl turbine blade
Page 49 and 50: *AMPLITUDE, NAME=CYCLEONE, DEFINITI

ABAQUS user subroutines for the simulation of viscoplastic - loicz

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