Finite Element Analysis of Mechanical Behavior of Metallic Materials

A special issue of Metals (ISSN 2075-4701). This special issue belongs to the section "Computation and Simulation on Metals".

Deadline for manuscript submissions: closed (31 May 2022) | Viewed by 3766

Special Issue Editor


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Guest Editor
Department of Mechanical and Aerospace Engineering, Department of Materials Science and Engineering, The Ohio State University, Columbus, OH, USA
Interests: advanced finite element modeling of composite and metallic materials; mesh generation for complex geometries; virtual microstructure reconstruction; fatigue analysis; pitting corrosion and stress corrosion cracking; deep learning

Special Issue Information

Dear Colleagues,

In recent years, the high demand for the virtual design of structures and the fast adoption of concepts, such as the digital twin by automotive and aerospace industries, has led to a significant increase in the integrated computational materials engineering of metallic materials. While the finite element method (FEM) is the dominant numerical technique that is widely used for simulating the mechanical behavior of metals across different length scales, several challenges must still be addressed in response to this growing demand.

This Special Issue aims to present the latest advances in the application of FEM for modeling metallic materials, including novel algorithmic aspects (microstructure reconstruction, image-based mesh generation, stabilized techniques, etc.) and new constitutive models (plasticity, fatigue, crystal plasticity, etc.). For this Special Issue, we are seeking original works on modeling a wide range of metallic materials across different length scales, ranging from high-strength steels to light-weight metals and from various alloys to metallic composites. These modeling efforts could focus on a variety of applications, including, but not limited to, additive manufacturing, forming, welding and joining, metallic biomaterials, corrosion, and high-temperature applications. We also encourage the submission of research articles that integrate FEM and machine-learning algorithms into the analysis and design of metallic material and metal composites.

Dr. Soheil Soghrati
Guest Editor

Manuscript Submission Information

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Keywords

  • finite element method
  • multiscale simulations
  • constitutive model
  • mesh generation
  • microstructure reconstruction
  • crystal plasticity
  • high-temperature applications

Published Papers (2 papers)

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Research

16 pages, 2014 KiB  
Article
State Parameter-Based Yield Strength Model for Integration in Finite Element User-Material Routines
by Bernhard Viernstein, Tomasz Wojcik and Ernst Kozeschnik
Metals 2022, 12(7), 1207; https://doi.org/10.3390/met12071207 - 15 Jul 2022
Cited by 1 | Viewed by 1249
Abstract
A new state parameter-based user-subroutine for finite-element software packages, which can be used to simulate microstructure-dependent stress–strain relations, is presented. Well-established precipitation kinetics, strain hardening and strengthening models are brought into a condensed form to optimise computational efficiency, without losing their predictive capabilities. [...] Read more.
A new state parameter-based user-subroutine for finite-element software packages, which can be used to simulate microstructure-dependent stress–strain relations, is presented. Well-established precipitation kinetics, strain hardening and strengthening models are brought into a condensed form to optimise computational efficiency, without losing their predictive capabilities. The framework includes main strengthening mechanisms, such as, precipitation strengthening, solid solution strengthening, the cross-core diffusion effect and work hardening. With the novel user-subroutine, the microstructure evolution of various thermo-mechanical treatments on the full integration point grid of the finite element (FE) mesh can be calculated. The validation of the simulations is carried out by mechanical testing as well as microstructure characterisation of an Al-6082 alloy, including transmission electron microscopy (TEM) investigations after various annealing times at 180 °C. Full article
(This article belongs to the Special Issue Finite Element Analysis of Mechanical Behavior of Metallic Materials)
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19 pages, 9241 KiB  
Article
The Effects of Shot Distance and Impact Sequence on the Residual Stress Field in Shot Peening Finite Element Model
by Zhou Wang, Ming Shi, Jin Gan, Xiaoli Wang, Ying Yang and Xudong Ren
Metals 2021, 11(3), 462; https://doi.org/10.3390/met11030462 - 11 Mar 2021
Cited by 4 | Viewed by 1715
Abstract
In order to investigate the effect of shot distance and impact sequence on the residual stress distribution of 42CrMo steel in shot peening (SP) finite element (FE) simulation, 3D dynamic models with order dimple pattern and stochastic dimple pattern were established via ABAQUS/Explicit [...] Read more.
In order to investigate the effect of shot distance and impact sequence on the residual stress distribution of 42CrMo steel in shot peening (SP) finite element (FE) simulation, 3D dynamic models with order dimple pattern and stochastic dimple pattern were established via ABAQUS/Explicit 6.14, and the simulation results were compared with experiments. The results show that shot overlap has a significant effect on the residual stress distribution of peened parts. Meanwhile, there is a threshold (related to SP parameter) for shot distance in the vertical and horizontal directions. When the shot distance is greater than the threshold in this direction, the residual stress distribution after SP tends to be stable. The impact sequence has almost no effect on the impact of a small number of shots, but this effect will appear when the number of shots increases. It is necessary to avoid shot overlap and continuous impact of adjacent dimples when the FE model is established; on this basis, the distance between shots and the number of layers of the shots can be reduced as much as possible without affecting the residual stress distribution. In addition, the comparison of simulation and experimental results shows that the residual stress evaluation area consistent with the experimental measurement is essential to obtain accurate residual stress distribution in the FE simulation process. Full article
(This article belongs to the Special Issue Finite Element Analysis of Mechanical Behavior of Metallic Materials)
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