Impact Resistance of Additively Manufactured Polymeric Materials for Biomedical Applications

Rachel Habiba, Ana Amaro, Carla Moura, Rui Silva, Daniela Trindade, André Antão, Rui Martins, Cândida Malça, Ricardo Branco

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Citation (Scopus)

Abstract

This paper studies the impact resistance of nine polymeric materials to be used in orthosis manufacturing. The study aims to understand the behaviour of these materials under different conditions to improve their performance and durability. The materials were additive manufactured in both vertical and horizontal directions, and their impact properties were evaluated through Charpy pendulum impact tests. The tests were conducted in air and wet environment to simulate native conditions, dry, and sweat, respectively. Results show that the impact resistance of the materials is influenced by material type, printing direction, and environmental conditions. Nylon 12 demonstrates superior impact resistance. ULTEM™ 9085 exhibited a clear anisotropic behaviour with significantly different absorbed energy between the vertically and horizontally printed samples. The immersion in artificial sweat (wet environment) reduced the absorbed energy, which was more pronounced for longer immersion times. The fracture surface analysis revealed different failure mechanisms for the different materials ranging from ductile to brittle failure.
Original languageEnglish
Title of host publicationProceedings of the 10th Congress of the Portuguese Society of Biomechanics
Subtitle of host publicationCNB 2023
EditorsAna Martins Amaro, Luís Roseiro, Ana Lúcia Messias, Beatriz Gomes, Henrique Almeida, Maria António Castro, Maria Augusta Neto, Maria de Fátima Paulino, Vítor Maranha
Place of PublicationCham
PublisherSpringer
Pages333-341
Number of pages9
ISBN (Electronic)978-3-031-47790-4
ISBN (Print)978-3-031-47789-8
DOIs
Publication statusPublished - Feb 2024
Event10th Congress of the Portuguese Society of Biomechanics, CNB 2023 - Figueira da Foz, Portugal
Duration: 5 May 20236 May 2023

Publication series

NameLecture Notes in Bioengineering
PublisherSpringer
ISSN (Print)2195-271X
ISSN (Electronic)2195-2728

Conference

Conference10th Congress of the Portuguese Society of Biomechanics, CNB 2023
Country/TerritoryPortugal
CityFigueira da Foz
Period5/05/236/05/23

Keywords

  • Additive manufacturing
  • Biomaterials
  • Impact resistance
  • Orthosis

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