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Available. Open Access. Open Access
Article
Publication date: 31 October 2023

Alberto Giubilini and Paolo Minetola

The purpose of this study is to evaluate the 3D printability of a multimaterial, fully self-supporting auxetic structure. This will contribute to expanding the application of…

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Abstract

Purpose

The purpose of this study is to evaluate the 3D printability of a multimaterial, fully self-supporting auxetic structure. This will contribute to expanding the application of additive manufacturing (AM) to new products, such as automotive suspensions.

Design/methodology/approach

An experimental approach for sample fabrication on a multiextruder 3D printer and characterization by compression testing was conducted along with numerical simulations, which were used to support the design of different auxetic configurations for the jounce bumper.

Findings

The effect of stacking different auxetic cell modules was discussed, and the findings demonstrated that a one-piece printed structure has a better performance than one composed of multiple single modules stacked on top of each other.

Research limitations/implications

The quality of the 3D printing process affected the performance of the final components and reproducibility of the results. Therefore, researchers are encouraged to further study component fabrication optimization to achieve a more reliable process.

Practical implications

This research work can help improve the manufacturing and functionality of a critical element of automotive suspension systems, such as the jounce bumper, which can efficiently reduce noise, vibration and harshness by absorbing impact energy.

Originality/value

In previous research, auxetic structures for the application of jounce bumpers have already been suggested. However, to the best of the authors’ knowledge, in this work, an AM approach was used for the first time to fabricate multimaterial auxetic structures, not only by co-printing a flexible thermoplastic polymer with a stiffer one but also by continuously extruding multilevel structures of auxetic cell modules.

Details

Rapid Prototyping Journal, vol. 29 no. 11
Type: Research Article
ISSN: 1355-2546

Keywords

Available. Open Access. Open Access

Abstract

Details

Destination Conscience
Type: Book
ISBN: 978-1-80455-960-4

Available. Open Access. Open Access
Book part
Publication date: 30 April 2019

S. J. Oswald A. J. Mascarenhas

Abstract

Details

Corporate Ethics for Turbulent Markets
Type: Book
ISBN: 978-1-78756-192-2

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Book part
Publication date: 25 July 2015

Francesca Minerva

Healthcare practitioners, according to legislations in most Western countries, may refuse to perform some medical activities that conflict with their moral and religious values…

Abstract

Healthcare practitioners, according to legislations in most Western countries, may refuse to perform some medical activities that conflict with their moral and religious values. The Roman Catholic Church has declared in official documents that doctors should not perform or facilitate activities considered immoral such as abortion and euthanasia. The goal of this paper is to suggest new options for regulating conscientious objection of Roman Catholic healthcare practitioners.

Details

Conscience, Leadership and the Problem of ‘Dirty Hands’
Type: Book
ISBN: 978-1-78560-203-0

Keywords

Available. Open Access. Open Access

Abstract

Details

Destination Conscience
Type: Book
ISBN: 978-1-80455-960-4

Available. Open Access. Open Access
Book part
Publication date: 22 February 2024

Abstract

Details

Destination Conscience
Type: Book
ISBN: 978-1-80455-960-4

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