Finite Element Analysis of an Energy Absorbing Crush Zone Using Expanded Metal

In this study, crash behavior of optimization of initial folding square sections are evaluated. Three parameters of design are set as width (w), height (h) and thickness (t) with three levels. Deformation mode of crash box and energy absorbing due to frontal load is observed. Response surface method is used to optimize the Initial folding square sections. Box-Bhenken is chosen to provide this setting and 13 models is built. Computer simulation is used to determine the energy absorption by using Software Finite Element Analysis. Based on computer simulation results, it can be denoted that w =1.1 mm, h = 0.9 mm and t = 2.75 mm produce the highest of energy absorption.

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Finite Element Analysis of ROPS with Energy-Absorbing Structure for Engineering Vehicles

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.1014.196 ◽

2014 ◽

Vol 1014 ◽

pp. 196-198

Author(s):

Su Li Feng ◽

Qiu Ju Zhang ◽

Zhi Gang Tian

Keyword(s):

Finite Element Analysis ◽

Finite Element ◽

Cross Section ◽

Deformation Pattern ◽

Element Analysis ◽

Vast Amount ◽

Energy Absorbing ◽

Absorbing Elements

This article addresses the design of ROPS model with energy absorbing structure based on dimensions of cross-section, mechanic properties and deformation pattern of ROPS. Afterwards, optimized buffer and energy-absorbing elements are installed on hexastyle ROPS of certain loader where roll-over accident can be simulated. Results indicate such structure can offer significantly improved protection. Installation of buffer and energy absorbing elements will not only absorb vast amount of motion during roll-over, but also will reduce deformation to ROPS. This has well coordinated the conflict between required rigidity and energy absorbing.

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Elasto-Plastic Finite Element Analysis of Long-Lived Seismic Ties for Thermal Power Boiler Structure

Volume 8: Seismic Engineering ◽

10.1115/pvp2017-65665 ◽

2017 ◽

Author(s):

Kiyoshi Aida ◽

Shoji Morikawa ◽

Masaki Shimono ◽

Motoki Kato ◽

Kunihiro Morishita ◽

...

Keyword(s):

Finite Element Analysis ◽

Finite Element ◽

Thermal Power ◽

Support Structure ◽

Element Analysis ◽

Earthquake Loads ◽

Energy Absorbing ◽

Power Boiler

This paper deals with the modification of recently developed steel seismic ties, which are energy absorbing devices installed between a boiler and its support structure. To enhance the aseismic reliability of the boiler and its support structure for recently increased specified earthquake loads, the useful live of the seismic ties must be prolonged. To achieve this, changes to the sectional shapes of the seismic ties have been analyzed and designed with the help of elasto-plastic finite element analysis.

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