By Shireen Afshan, Daniel Balint, Jianguo Lin (auth.), Holm Altenbach, Serge Kruch (eds.)
This quantity offers the key final result of the IUTAM symposium on “Advanced fabrics Modeling for Structures”. It discusses advances in hot temperature fabrics learn, and in addition to presents a dialogue the hot horizon of this primary box of utilized mechanics. the themes disguise a wide area of analysis yet position a selected emphasis on multiscale techniques at a number of size scales utilized to non linear and heterogeneous fabrics.
Discussions of latest methods are emphasized from a variety of similar disciplines, together with steel physics, micromechanics, mathematical and computational mechanics.
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Extra info for Advanced Materials Modelling for Structures
Des. Appl. 224(1), 19–29 (2010) 7. : Creep-fatigue analysis of the steel AISI type 316 component failure. Proc. Appl. Math. Mech. 11, 373–374 (2011). 201110178 8. : Modelling of high-temperature inelastic behaviour of the austenitic steel AISI type 316 using a continuum damage mechanics approach. J. Strain Anal. 47(4), 229–243 (2012) 9. : Thermal and structural properties of fusion related materials. ARIES Properties Archive: UKAEA FUS 294, Euratom/UKAEA Fusion Association, San Diego (1995) 10.
In comparison to the unified Chaboche model, the proposed model has less number of material constants (7 vs. 10) and provides better results in modelling of creep and relaxation. The High-Temperature Inelastic Behavior of the Austenitic Steel AISI Type 316 29 constitutive Eq. (2) of the proposed model, analogically to conventional model [7, 8], can be coupled with evolution equations for creep damage ωcr and fatigue damage ωf parameters. In case of constant loading, ωcr influences the accumulation of inelastic strain εin resulting in tertiary creep stage on creep curve.
10 and 11 provided by the proposed model are far from the optimal matching of experiments. The simulated inelastic strains εin overestimate cr for low stresses and underestimate the the experimental strains before reaching ε˙ min experimental strains for high stresses. The positive features of obtained simulation results include two facts observed on cr are reached for the complete stress Figs. 10 and 11. First, the required values of ε˙ min range with the exception of some moderate stresses. Second, the simulation curves for the low stress range demonstrate the separate influence of kinematic and isotropic cr , as hardening resulting in smooth changing of the curves’ slope before reaching ε˙ min it is assumed in Sect.