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==Abstract==
 
==Abstract==
  
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Despite their advantageous properties such as high stiffness-to-weight ratio, fiber-reinforced laminates may suffer from characteristic failure modes such as fiber-matrix debonding or delamination. This paper introduces laminate-like functionally graded composites, which offer remedies against mentioned structural deficiencies thanks to their unitary structure. Besides their mechanical advantages, these materials can be additively manufactured, circumventing the lengthy fabrication processes of classical laminates. The proposed material concept is demonstrated on a simple flat plate, whose free vibration modes are computed via finite element analysis. The results show that natural frequencies computed for the graded composite plate converge to the ones obtained for the equivalent homogenous structure as the number of grading waves is increased. The presented results also form guidelines about the necessary mesh resolution to accurately model plates with different spatial grading frequencies.
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== Full Paper ==
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<pdf>Media:Draft_Sanchez Pinedo_569400439pap_2985.pdf</pdf>

Latest revision as of 23:25, 6 January 2025

Abstract

Despite their advantageous properties such as high stiffness-to-weight ratio, fiber-reinforced laminates may suffer from characteristic failure modes such as fiber-matrix debonding or delamination. This paper introduces laminate-like functionally graded composites, which offer remedies against mentioned structural deficiencies thanks to their unitary structure. Besides their mechanical advantages, these materials can be additively manufactured, circumventing the lengthy fabrication processes of classical laminates. The proposed material concept is demonstrated on a simple flat plate, whose free vibration modes are computed via finite element analysis. The results show that natural frequencies computed for the graded composite plate converge to the ones obtained for the equivalent homogenous structure as the number of grading waves is increased. The presented results also form guidelines about the necessary mesh resolution to accurately model plates with different spatial grading frequencies.

Full Paper

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Published on 29/10/24
Submitted on 29/10/24

Volume Modelling and Optimization of Functionally Graded Composites and Structures, 2024
DOI: 10.23967/eccomas.2024.178
Licence: CC BY-NC-SA license

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