Systematic development of load-path dependent FLM-FRP lightweight structures

Völkl H, Wartzack S (2021)


Publication Language: English

Publication Type: Journal article, Original article

Publication year: 2021

Journal

Book Volume: 7

Journal Issue: E10

DOI: 10.1017/dsj.2021.9

Open Access Link: https://www.cambridge.org/core/journals/design-science/article/systematic-development-of-loadpath-dependent-flmfrp-lightweight-structures/D5448FE077C4480260E0F7C0EABDFE1D

Abstract

Additive manufacturing offers a high degree of design freedom. When Design for Additive Manufacturing is conducted properly, lightweight potential can be exploited. This contribution introduces a novel design approach for the widespread fused layer modelling (FLM) technology when using orthotropic Fibre Reinforced Polymer filament. Its objective is to obtain stiff and strong load-path optimized FLM structures in a structured and algorithmic way. The approach therefore encompasses (1) build orientation optimization to consider weaker bonding between layers than intralayer; (2) topology optimization with orthotropic material properties to obtain favourable overall geometry and inner structure; (3) direct build path generation from optimized material orientation and alternatives to the direct generation and (4) simulation. The approach is demonstrated using a lift arm under multiple load cases and further demonstrator parts to show its general applicability. Lightweight potential of individual optimization steps and the influence of modifications contrasting general non-FLM-specific optimization are studied and discussed.

Authors with CRIS profile

How to cite

APA:

Völkl, H., & Wartzack, S. (2021). Systematic development of load-path dependent FLM-FRP lightweight structures. Design Science, 7(E10). https://dx.doi.org/10.1017/dsj.2021.9

MLA:

Völkl, Harald, and Sandro Wartzack. "Systematic development of load-path dependent FLM-FRP lightweight structures." Design Science 7.E10 (2021).

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