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Constitutive Model for Porous Metallic Materials

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

Deadline for manuscript submissions: closed (30 October 2021) | Viewed by 2221

Special Issue Editor


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Guest Editor
Department of Basic Sciences, Tecnun University of Navarra, Donostia-San Sebastian, Spain
Interests: mechanical properties at the nanoscale and the mechanical and microstructural characterization of ultrafine grained materials

Special Issue Information

Dear Colleagues,

Traditionally, research on the mechanical behaviour of porous metallic materials has been conducted in the context of very specific problems such as ductile fracture, and in some niche applications such as the study of metal foams, porous membranes for filtration, geophysics, biological materials or the sintering of powder metallurgy materials.

In recent years, the understanding of the densification mechanisms of porous metallic materials has also attracted increasing interest due to the remarkable evolution of some powder-based metal additive manufacturing techniques (such as binder jetting or NNS-HIP among others). This requires an adequate description of these sintering mechanisms at different scales and using different approaches.

The Special Issue, “Constitutive Model for Porous Metallic Materials”, will address advances in materials science, processing, characterisation techniques, modelling and simulation, including multiscale approaches of porous metallic materials. Original papers are solicited on all types of problems linked to the development, evolution and mechanical and physical response of porous metallic materials including the underlying microscale mechanisms, with an emphasis on the development of quantitative approaches to explain and predict experimental observations.

Dr. Jon Alkorta
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

  • modelling
  • advanced manufacturing
  • porous materials
  • characterisation
  • sintering
  • multiscale modelling
  • simulation
  • metals

Published Papers (1 paper)

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Research

20 pages, 7068 KiB  
Article
Mechanical Properties and Constitutive Model Applied to the High-Speed Impact of Aluminum Foam That Considers Its Meso-Structural Parameters
by Qian Guo, Wenbin Li, Wenjin Yao, Xiaoming Wang and Changqiang Huang
Materials 2021, 14(20), 6206; https://doi.org/10.3390/ma14206206 - 19 Oct 2021
Cited by 2 | Viewed by 1860
Abstract
In this work, quasistatic mechanical compression experiments were used to study the stress–strain relationship of aluminum foam, and the mechanism of the compressive deformation of aluminum foam under quasistatic compression conditions is discussed based on the experimental observations. Since the interactions among cells [...] Read more.
In this work, quasistatic mechanical compression experiments were used to study the stress–strain relationship of aluminum foam, and the mechanism of the compressive deformation of aluminum foam under quasistatic compression conditions is discussed based on the experimental observations. Since the interactions among cells of the aluminum foam and differences in compressive strength among cells substantially impacted the mechanical properties of the material, the cellular structural parameters, namely the cell size and cell wall thickness, were defined. Along with the mechanism of deformation of a single cell, the influence of structural parameters on the micro failure mechanism and the stress–strain relationship of the aluminum foam material was analyzed. In combination with the factors influencing the mechanical properties of the aluminum foam, a mechanical constitutive model of aluminum foam suitable for multi-density and multi-impact environments that considers cellular structure density was established to predict the complete stress–strain relationship of aluminum foam under a high strain rate. The coupling function of strain rate and temperature in the original model was verified and the parameters were determined by the compression experiments under different strain rates and different temperatures. Full article
(This article belongs to the Special Issue Constitutive Model for Porous Metallic Materials)
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