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Advances in the Experimentation and Numerical Modeling of Material Joining Processes (Second Edition)

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Materials Simulation and Design".

Deadline for manuscript submissions: 20 October 2024 | Viewed by 1341

Special Issue Editor

Special Issue Information

Dear Colleagues,

Nowadays, structural design is facing major challenges in the associated joining processes, such as material selection, different thermal coefficients and melting points, multi-material joining, the joining of thin-walled structures, traditional process effectiveness for new materials, cost efficiency and ecological issues. To provide a strong, reliable and lightweight solution for a given application, the designer should either consider hybrid joining or choose from a large variety of available processes, such as welding, brazing, riveting, mechanical fastening, adhesive bonding, clinching, friction stir welding, laser welding, diffusion welding, amongst others. These joining processes have evolved towards optimization and cost reduction in the early design stages in terms of their implementation and industrialization, destructive and non-destructive testing, and either analytical or numerical modeling. Numerical modeling is particularly effective for simulating complex geometries, different load scenarios and materials with plasticity or anisotropy. The finite element method, together with fracture mechanics techniques, is a powerful and common approach employed in the scientific community, but less applied for the study of complex loads, such as high strain rates, fatigue or impact, and it is seldom used in the industry. To develop state-of-the-art techniques and disseminate the recent advances in all types of joining, either experimental or numerical, this Special Issue intends to bring together a significant number of high-quality contributions to this field of research through innovative and original works, subsequently promoting their dissemination via open access publishing.

Dr. Raul D. S. G. Campilho
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Materials is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • joining process
  • welding
  • brazing
  • riveting
  • mechanical fastening
  • adhesive bonding
  • clinching
  • friction stir welding
  • laser welding
  • diffusion welding
  • hybrid joining
  • experimental testing
  • numerical modeling
  • strength prediction
  • failure path prediction
  • finite element method
  • fracture mechanics
  • static load
  • dynamic load
  • impact load
  • fatigue load
  • residual stress
  • mechanical properties
  • thin-walled structures

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Published Papers (1 paper)

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Research

22 pages, 6228 KiB  
Article
Thermal–Mechanical and Microstructural Simulation of Rotary Friction Welding Processes by Using Finite Element Method
by Hossein Mani, Aboozar Taherizadeh, Behzad Sadeghian, Behzad Sadeghi and Pasquale Cavaliere
Materials 2024, 17(4), 815; https://doi.org/10.3390/ma17040815 - 08 Feb 2024
Viewed by 756
Abstract
Rotary friction welding is one of the most crucial techniques for joining different parts in advanced industries. Experimentally measuring the history of thermomechanical and microstructural parameters of this process can be a significant challenge and incurs high costs. To address these challenges, the [...] Read more.
Rotary friction welding is one of the most crucial techniques for joining different parts in advanced industries. Experimentally measuring the history of thermomechanical and microstructural parameters of this process can be a significant challenge and incurs high costs. To address these challenges, the finite element method was used to simulate thermomechanical and microstructural aspects of the welding of identical superalloy Inconel 718 tubes. Numerical simulation results were used to compute essential mechanical and metallurgical parameters such as temperature, strain, strain rate, volume fraction of dynamic recrystallization, and grain size distribution. These parameters were subsequently verified using experimental test results. The Johnson–Avrami model was utilized in the microstructural simulation to convert thermomechanical parameters into metallurgical factors, employing a FORTRAN subroutine. The calculated thickness of the recrystallization zone in the wall was 480 and 850 μm at the tube wall’s center and edge, respectively. These values were reported from experimental measurements as 500 and 800 μm, respectively. The predicted grain size changes from the center to the edge of the wall thickness, near the weld interface, ranged from 2.07 to 2.15 μm, comparable to the experimental measurements ranging from 1.9 to 2.2 μm. Various curves are also presented to explore the correlation between thermomechanical and microstructural parameters, with the experimental results revealing predictable microstructure evolutions correlated with thermomechanical changes. Full article
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