Numerical predictions for the effect of negative Poisson's ratio on thermoelastic properties of triply periodic minimal surface-based composites

This study investigates the effect of negative Poisson's ratio on thermoelastic properties of triply periodic minimal surfaces (TPMS)-based composites. Schwarz and Gyroid TMPS-based representative volume elements (RVEs) with different volume fractions are generated. Finite element simulations a...

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Main Authors: Komal Chawla, Raj Kiran
Format: Article
Language:English
Published: Elsevier 2022-06-01
Series:Results in Materials
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2590048X22000218
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author Komal Chawla
Raj Kiran
author_facet Komal Chawla
Raj Kiran
author_sort Komal Chawla
collection DOAJ
description This study investigates the effect of negative Poisson's ratio on thermoelastic properties of triply periodic minimal surfaces (TPMS)-based composites. Schwarz and Gyroid TMPS-based representative volume elements (RVEs) with different volume fractions are generated. Finite element simulations are performed on RVEs to estimate their thermoelastic effective properties. The Poisson's ratio of matrix and TPMS is varied over the range containing positive and negative values. These composites demonstrated tailorable effective properties through exploiting the negative Poisson's ratio. The numerical results are fitted with surface polynomials and the effective properties in terms of both the volume fraction and Poisson's ratio are expressed. From the fitted expression, results are compared for a different set of Poisson's ratios with existing micromechanical models. Comparison is found to be in good agreement for positive values of Poisson's ratios. The numerically fitted expression is found to be beneficial, especially for negative values of Poisson's ratio, where the existing micromechanical models fail to account the Poisson's ratio effect. TPMS-based composites offer a new guideline for achieving unusual and enhanced material properties via exploiting negative Poisson ratios that is potentially attractive for aerospace and protective applications such as protective clothing, body armor, and bullet-proof helmets.
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spelling doaj.art-1d338b3bdda9447e97aeaad54768ffc72022-12-22T03:21:54ZengElsevierResults in Materials2590-048X2022-06-0114100273Numerical predictions for the effect of negative Poisson's ratio on thermoelastic properties of triply periodic minimal surface-based compositesKomal Chawla0Raj Kiran1Department of Engineering Physics, University of Wisconsin Madison, Madison, WI, 53706, USA; Corresponding author.School of Mechanical and Aerospace Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, SingaporeThis study investigates the effect of negative Poisson's ratio on thermoelastic properties of triply periodic minimal surfaces (TPMS)-based composites. Schwarz and Gyroid TMPS-based representative volume elements (RVEs) with different volume fractions are generated. Finite element simulations are performed on RVEs to estimate their thermoelastic effective properties. The Poisson's ratio of matrix and TPMS is varied over the range containing positive and negative values. These composites demonstrated tailorable effective properties through exploiting the negative Poisson's ratio. The numerical results are fitted with surface polynomials and the effective properties in terms of both the volume fraction and Poisson's ratio are expressed. From the fitted expression, results are compared for a different set of Poisson's ratios with existing micromechanical models. Comparison is found to be in good agreement for positive values of Poisson's ratios. The numerically fitted expression is found to be beneficial, especially for negative values of Poisson's ratio, where the existing micromechanical models fail to account the Poisson's ratio effect. TPMS-based composites offer a new guideline for achieving unusual and enhanced material properties via exploiting negative Poisson ratios that is potentially attractive for aerospace and protective applications such as protective clothing, body armor, and bullet-proof helmets.http://www.sciencedirect.com/science/article/pii/S2590048X22000218ThermomechanicalFinite Element Analysis (FEA)Micro-mechanicsTriply periodic minimal surface
spellingShingle Komal Chawla
Raj Kiran
Numerical predictions for the effect of negative Poisson's ratio on thermoelastic properties of triply periodic minimal surface-based composites
Results in Materials
Thermomechanical
Finite Element Analysis (FEA)
Micro-mechanics
Triply periodic minimal surface
title Numerical predictions for the effect of negative Poisson's ratio on thermoelastic properties of triply periodic minimal surface-based composites
title_full Numerical predictions for the effect of negative Poisson's ratio on thermoelastic properties of triply periodic minimal surface-based composites
title_fullStr Numerical predictions for the effect of negative Poisson's ratio on thermoelastic properties of triply periodic minimal surface-based composites
title_full_unstemmed Numerical predictions for the effect of negative Poisson's ratio on thermoelastic properties of triply periodic minimal surface-based composites
title_short Numerical predictions for the effect of negative Poisson's ratio on thermoelastic properties of triply periodic minimal surface-based composites
title_sort numerical predictions for the effect of negative poisson s ratio on thermoelastic properties of triply periodic minimal surface based composites
topic Thermomechanical
Finite Element Analysis (FEA)
Micro-mechanics
Triply periodic minimal surface
url http://www.sciencedirect.com/science/article/pii/S2590048X22000218
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