Effect of strain hardening on the lateral compression of tubes between rigid plates

Reid, S.R.; Reddy, T.Y.

doi:10.1016/0020-7683(78)90026-4

Cited by 176 publications

(66 citation statements)

References 16 publications

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“…The multi-objectives design is aimed at achieving the maximum SEA and to minimize the value of the collapse load (F) as stated in equation (2). The geometric parameters D o , t o , D i , and t i of the sandwich tube were set to vary in order to seek the optimal configuration of the sandwich tube.…”

Section: Design Optimization Resultsmentioning

confidence: 99%

Analysis and optimization of sandwich tubes energy absorbers under lateral loading

Baroutaji

Gilchrist

Smyth

et al. 2015

International Journal of Impact Engineering

110

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Abstract:In this paper, the sandwich tubes, which consist of thin-walled circular tubes with aluminium foam core, were proposed as energy absorption devices. The sandwich tubes were laterally crushed under quasi-static loading conditions. Detailed finite element model, validated against existing experimental results, was developed using the explicit code (ANSYS-LSDYNA) to assess the energy absorption responses and deformation modes. Response surface methodology (RSM) was employed in parallel with the finite element models to perform both parametric studies and multi-objective optimization in order to establish the optimal configuration of the sandwich tube.Sampling designs of the sandwich tubes were constructed based on a D -optimal design of experiment (DOE) method. Factorial analysis was performed using the DOE results to investigate the influences of the geometric parameters on the responses of sandwich tubes. In addition, multi-objective optimization design (MOD) of the sandwich tubes is carried out by adopting a desirability approach. It was found that the tube with a minimum diameter of the inner layer and a maximum foam thickness are more suitable for use as energy absorbing components.

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Section: Design Optimization Resultsmentioning

confidence: 99%

Analysis and optimization of sandwich tubes energy absorbers under lateral loading

Baroutaji

Gilchrist

Smyth

et al. 2015

International Journal of Impact Engineering

110

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“…It should be noted that the strengthening influence of strain rate on the flow stress of mild steel is a maximum at small strains and decreases as the plastic strain increases, as observed by Campbell and Cooper [26]. Reid and Reddy [27] studied the effects of strain rate on the dynamic lateral compression of mild steel tubes. They discovered that the strain rate of a single tube of 50mm diameter was 22.5s -1 when compressed dynamically at 5m/s.…”

Section: Numerical Results and Discussionmentioning

confidence: 99%

“…These authors were among the first to analyse such problems and each one of them proposed a slightly different deformation mechanism for the compression of a tube between rigid flat platens. The effect of strain hardening was further examined by Reid and Reddy [7] who developed a theoretical model based on a rigid linear strain hardening material model which appears to be the most accurate one to date. The authors improved the strain hardening prediction by replacing the localised hinges with an arc in which its length changes with deflection.…”

mentioning

confidence: 99%

Optimised design of nested circular tube energy absorbers under lateral impact loading

Olabi

Morris

Hashmi

et al. 2008

International Journal of Mechanical Sciences

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“…Therefore, the prediction of deforming behaviour is difficult. The compression process of metallic tubes of different shapes and sizes under different loading and different support conditions were investigated by many researchers in the past few decades by considering different analytical models of collapse [8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24][25] . Recently, finite element codes have also been employed to understand the compression process by few researchers [26][27][28] .…”

Section: Introductionmentioning

confidence: 99%

Finite Element Analysis of Collapse of Metallic Tubes

Gupta

Sekhon

2008

DSJ

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Quasi-static axial and lateral compression tests were conducted on aluminium tubes of circular, rectangular, and square cross sections on a universal testing machine (Instron model 1197). During the compression process, different tubes were collapsed in different modes of collapse. These compression processes were also modelled using FORGE2 finite element code. The code has the capabilities of automatic mesh generation, modelling of die, creation of material data file, carrying out the finite element computations, and post-processing of results. The deforming tube material was modelled as rigid-visco-plastic. Development of different modes of collapse was investigated experimentally and computationally. The experimental load-compression curves and deformed shapes are compared with the computed results and found in good agreement. It is found that the proposed finite element models of the different compression processes are capable of predicting the modes of collapse.

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Effect of strain hardening on the lateral compression of tubes between rigid plates

Cited by 176 publications

References 16 publications

Analysis and optimization of sandwich tubes energy absorbers under lateral loading

Analysis and optimization of sandwich tubes energy absorbers under lateral loading

Optimised design of nested circular tube energy absorbers under lateral impact loading

Finite Element Analysis of Collapse of Metallic Tubes

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