open access publication

Article, 2024

Experimental investigation and numerical modelling of the cyclic plasticity and fatigue behavior of additively manufactured 316 L stainless steel

International Journal of Plasticity, ISSN 0749-6419, 1879-2154, Volume 176, Page 103966, 10.1016/j.ijplas.2024.103966

Contributors

Subasic, Mustafa 0000-0002-1248-110X (Corresponding author) [1] Ireland, A 0009-0009-6969-1886 [1] Mansour, Rami 0000-0001-6375-6292 [1] [2] Enblom, P 0009-0006-8453-9688 [1] Krakhmalev, Pavel 0000-0002-9441-2502 [3] Åsberg, Mikael 0000-0001-6851-6319 [3] Fazi, Andrea 0000-0002-2838-6799 [4] Gårdstam, Johannes 0000-0002-6266-0085 [5] Shipley, James [5] Waernqvist, P. [6] Forssgren, B. [6] Efsing, Pål 0000-0003-1498-5691 [1] [6]

Affiliations

  1. [1] KTH Royal Institute of Technology
    2. [NORA names: Sweden; Europe, EU; Nordic; OECD];
  2. [2] Aarhus University
    3. [NORA names: AU Aarhus University; University; Denmark; Europe, EU; Nordic; OECD];
  3. [3] Karlstad University
    4. [NORA names: Sweden; Europe, EU; Nordic; OECD];
  4. [4] Chalmers University of Technology
    5. [NORA names: Sweden; Europe, EU; Nordic; OECD];
  5. [5] Quintus Technologies (Sweden)
    6. [NORA names: Sweden; Europe, EU; Nordic; OECD];

Abstract

This study addresses the critical need for a constitutive model to analyze the cyclic plasticity of additively manufactured 316L stainless steel. The anisotropic behavior at both room temperature and 300 °C is investigated experimentally based on cyclic hysteresis loops performed in different orientations with respect to the build direction. A comprehensive constitutive model is proposed, that integrates the Armstrong-Frederick nonlinear kinematic hardening, Voce nonlinear isotropic hardening and Hill's anisotropic yield criterion within a 3D return mapping algorithm. The model was calibrated to specimens in the 0° and 90° orientations and validated with specimens in the 45° orientation. A single set of hardening parameters successfully represented the elastoplastic response for all orientations at room temperature. The algorithm effectively captured the full cyclic hysteresis loops, including historical effects observed in experimental tests. A consistent trend of reduced hardening was observed at elevated temperature, while the 45° specimen orientation consistently exhibited the highest degree of strain hardening. The applicability of the model was demonstrated by computing energy dissipation for stabilized hysteresis loops, which was combined with fatigue tests to propose an energy-based fatigue life prediction model.

Keywords

Armstrong–Frederick, Hill, Hill’s anisotropic yield criterion, L stainless steel, algorithm, anisotropic behavior, anisotropic yield criterion, applications, behavior, comprehensive constitutive model, computing energy dissipation, constitutive model, criteria, cyclic hysteresis loops, cyclic plasticity, degree of strain hardening, direction, dissipation, effect, elastoplastic response, elevated temperatures, energy dissipation, energy-based fatigue life prediction model, experimental investigation, experimental tests, fatigue, fatigue behavior, fatigue life prediction model, fatigue tests, hardening, hardening parameters, highest degree, historical effects, hysteresis loops, investigation, isotropic hardening, kinematic hardening, life prediction model, loop, manufactured 316L stainless steel, mapping algorithm, model, nonlinear isotropic hardening, nonlinear kinematic hardening, numerical model, orientation, parameters, plasticity, prediction model, reduced hardening, response, return mapping algorithm, room, room temperature, specimen orientation, specimens, stabilized hysteresis loop, stainless steel, steel, strain hardening, study, temperature, test, yield criterion

Funders

  • Vattenfall (Sweden)

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