Abstract
AbstractThis work investigates the impact of infill pattern structure on the crashworthy performance and deformation history of 3D-printed tubes subjected to a quasi-static axial compression load. The proposed tubes were made from polylactic acid (PLA) using a 3D printing technique. Five infill pattern structures were adapted, i.e. circular, square, triangle, zigzag and cross patterns with 50% infill density. The crashworthy analysis was carried out by assessing different indicators, i.e. peak force ($${\mathrm{F}}_{\mathrm{ip}})$$
F
ip
)
, mean crush force ($${\mathrm{F}}_{\mathrm{m}})$$
F
m
)
, total absorbed energy (U), specific absorbed energy (SEA), and crushing force efficiency (CFE). It was found that the square infill pattern shows the maximum $${\mathrm{F}}_{\mathrm{ip}}$$
F
ip
, $${\mathrm{F}}_{\mathrm{m}}$$
F
m
, U and SEA with values of (24.38 kN, 20.58 kN, 673.38 kJ, and 26.52) while zigzag infill pattern shows the highest CFE with a value of 0.91. The optimal infill pattern is determined using a Multi-Attribute Decision Making (MADM) method called Complex Proportional Assessment (COPRAS). The COPRAS results showed that the square infill pattern is the most effective energy absorbing structure.
Publisher
Springer Science and Business Media LLC
Subject
Polymers and Plastics,General Chemical Engineering,General Chemistry
Cited by
7 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献