Investigating stiffness property matching and homogenization of the double-double family of laminates

Aidan Hawkins*, Scott L.J. Millen, M. Ali Aravand

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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Abstract

The investigation of stiffness property matching and homogenization of the Double-Double (DD) family of laminates is presented. DD laminates are a new layup design approach composed of repeated sub-laminates, comprising two sets of bi-angled plies, [±φ°, ±ψ°]r. The DD laminate approach simplifies the design of composite structures, reduces manufacturing complexity, and allows for rapid thickness tapering, presenting substantial prospects for reducing structural mass. An order-of-magnitude improvement in matching accuracy for both in-plane and bending stiffness properties was observed when extended DD sub-laminates, featuring additional 0°, 90° or ±φ° plies, were incorporated as options in the quad laminate matching process. Additionally, homogenization of laminates comprised of extended DD sub-laminates was examined, concluding that extended DD sub-laminates have no negative implications in terms of laminate homogenization if the correct sub-laminate permutation is selected.

Original languageEnglish
Title of host publicationAmerican Society for Composites (ASC) 38th Annual Technical Conference: Proceedings
EditorsMarianna Maiaru, Gregory Odegard, Brett Bednarcyk, Evan Pineda
Place of PublicationThe University of Massachusetts
PublisherDEStech Publications Inc.
ISBN (Electronic)9781605956916
Publication statusPublished - 18 Sept 2023
Event38th Technical Conference of the American Society for Composites, ASC 2023 - Boston, United States
Duration: 18 Sept 202320 Sept 2023

Publication series

NameProceedings of the Technical Conference of the American Society for Composites

Conference

Conference38th Technical Conference of the American Society for Composites, ASC 2023
Country/TerritoryUnited States
CityBoston
Period18/09/202320/09/2023

Bibliographical note

This article appeared in the Proceedings of the American Society for Composites: Thirty-eighth Technical Conference, 2023. Lancaster, PA: DEStech Publications, Inc.

ASJC Scopus subject areas

  • Mechanics of Materials
  • Metals and Alloys
  • Surfaces, Coatings and Films

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