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Design attributes for geometry optimization process of thin walled honeycomb structures

conference contribution
posted on 2023-07-26, 13:35 authored by Shabnam Sadeghi Esfahlani, Hassan Shirvani, Sunny O. Nwaubani, Ayoub Shirvani
Thin walled cellular structures have the ability to absorb impact energy during crashing thus it is important to enhance the crashing efficiency and optimise the structural reliability. This paper discusses the honeycomb cell configuration optimization procedure. For the design optimization, the response surface method (RSM) is used to formulate the complex design where the energy absorption (EA) representing the structure’s ability of absorbing energy was selected as objective, the Y split side parting length w1 , w2 , and thickness T1 are defined as three design variables, and the maximum crushing force (Max.F) occurs as constraint. During this distinctive optimization, the (RSM) was combined with detailed geometrically simplified finite element (FE) model using ANSYS/LS-DYNA (pre-processor), LS-DYNA (solver) and LS-Opt (optimiser). RSM combined with (FE)model without user intervention, was the effective tool to optimize non-linear impacted cellular structures. Optimal design achieved through LS-OPT is compared to the validated results for accuracy and effectiveness.

History

Page range

899-908

Publisher

American Society of Mechanical Engineers

Place of publication

Online

ISBN

978-0-7918-5484-6

Conference proceeding

Proceedings of the ASME 2011 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference

Name of event

ASME 2011 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference

Location

Washington DC, USA

Event start date

2011-08-28

Event finish date

2011-08-31

Language

  • other

Legacy posted date

2015-02-09

Legacy Faculty/School/Department

ARCHIVED Faculty of Science & Technology (until September 2018)

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