Critical Factors Affecting the Use of Finite Element Analysis for Rotomolded Parts

Bhabha, Hashim (2014) Critical Factors Affecting the Use of Finite Element Analysis for Rotomolded Parts. In: Society of Plastics Engineers Annual Technical Conference (ANTEC) 2014, 28-30 April 2014, Rio Hotel. 3700 W Flamingo Rd, Las Vegas, NV 89103, United States.

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Abstract

In the context of rotational moulding (RM), linear medium density polyethylene (LMDPE) is by far the most popular thermoplastic for load-bearing parts (e.g. underground water tanks), primarily because of its wide processing window, ideal melt flow properties, low cost and excellent toughness. On the other hand, the stiffness of LMDPE is relatively low in comparison to alternative polymers such as polypropylene; this low stiffness warrants the application of finite element analysis (FEA) on load-bearing RM designs to validate their structural integrity before production. Due to the complex non-linear behaviour of PE (even at very low strains), the Poisson’s ratio is a challenging parameter to measure within the elastic region. Consequently, Poisson’s ratio tests require expensive specialist equipment such as laser/video extensometry or ultrasound techniques. Due to the latter requirements, literature regarding the Poisson’s ratio of PE and its effect on the outcome of FEA is scarcely available. In order to address this gap in knowledge, Poisson’s ratio sensitivity studies were conducted using FEA software and the results discussed.

Item Type: Conference or Workshop Item (Lecture)
Additional Information: Department of Engineering and Applied Design
Subjects: Q Science > QA Mathematics
Q Science > QA Mathematics > QA76 Computer software
Q Science > QC Physics
T Technology > TA Engineering (General). Civil engineering (General)
T Technology > TJ Mechanical engineering and machinery
T Technology > TS Manufactures
Event Title: Society of Plastics Engineers Annual Technical Conference (ANTEC) 2014
Event Location: Rio Hotel. 3700 W Flamingo Rd, Las Vegas, NV 89103, United States
Event Dates: 28-30 April 2014
Related URLs:
Depositing User: Hashim Bhabha
Date Deposited: 15 Oct 2020 08:43
Last Modified: 15 Oct 2020 08:43
URI: http://eprints.chi.ac.uk/id/eprint/5364

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