Multi-Mechanism Modeling of Inelastic Material Behavior

ISBN-13: 9781848215801 / Angielski / Twarda / 2018 / 288 str.

Georges Cailletaud; Lakhdar Taleb; Kacem Sai

Opis

Multi–mechanism models describe the mechanical effects of metals, polymers, and geomaterials in addition to their function in developing constitutive equations. This text explains how multi–mechanism models represent monotonic and cyclic mechanical behaviors and deformation mechanisms with material parameters and internal variables.

Spis treści

Introduction

State of the art of the multi–mechanism models

Part I : Theory

Thermodynamical  framework

State variables, free energy, plastic potentials, criteria, evolution rules, including thermodynamical consistency

Model with various mechanisms and one criterion

Model with various mechanisms and various criteria

 

Part II: Model application

Typical stress/strain responses

Creep, plasticity/creep interaction, rate sensitivity, ratcheting, extra hardening under non proportional loading, anisotropy

Damage in multi–mechanism models, continuum damage mechanics theory, Gurson approach

Comparison with experimental data bases (Carbon steel CS1026, Austenitic stainless steel 304 and 316 for a large temperature range, Austenitic stainless steel 304, Inconel 718, N18, 2000 series Al alloy, 35NCD16, Semi–crystalline polymers, Zirconium alloy, 55NiCrMoV7, Mortar rubber aggregate).

 

Part III: Finite Element implementation

Numerical integration

Finite element simulation

O autorze

Georges CAILLETAUD, MINES ParisTech, FranceLakhdar TALEB, INSA Rouen, FranceKacem SAI, ENIS Sfax, France