Numerical analysis on the axial deformation and energy absorption behaviour of tri-tubular structures

Kumar, A. Praveen; Shunmugasundaram, M.; Sivasankar, S.; Sankar, Lalitha

doi:10.1016/j.matpr.2020.01.050

Cited by 5 publications

(7 citation statements)

References 12 publications

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“…Figure 4 shows the load-displacement of bi-tubes under axial loading. Results of load-displacement show a good agreement with the numerical analysis results obtained by Kumar et al [16]. MAT_024_PIECEWISE_LINEAR_PLASTICITY material model is used to model the Aluminum material.…”

Section: Model Validationsupporting

confidence: 81%

“…Finite element results show a good agreement with the experimental results obtained by Kathiresan et al [22]. In addition, finite element analysis results were validated with the simulation results using ABAQUS software obtained by Kumar et al [16] of bi-tubes under axial loading. Figure 4 shows the load-displacement of bi-tubes under axial loading.…”

Section: Model Validationsupporting

confidence: 78%

“…This procedure decreases the time steps required to improve the computation efficiency. To ensure that the static analysis is implemented, the kinetic energy to the internal energy ratio has to be lower than 5% during the compression loading [16][17][18]. Figure 1.…”

Section: Finite Element Modellingmentioning

confidence: 99%

“…Both stiffned and unstiffned multitubes recommended as energy absorbing components for vehicles [15]. Behavior of multi-tubular structures of circular, square and triangular cross sections under axial loading was studied by Kumar et al [16]. The authors found that energy absorbed by the multi-tubular components of circular and square crosssections was higher than the energy absorbed by the bitubular components [16].…”

Section: Introductionmentioning

confidence: 99%

“…Behavior of multi-tubular structures of circular, square and triangular cross sections under axial loading was studied by Kumar et al [16]. The authors found that energy absorbed by the multi-tubular components of circular and square crosssections was higher than the energy absorbed by the bitubular components [16]. In order to enhance the crashworthiness performance and energy absorption of bi-tubular energy absorbers and to obtain lighter weight energy absorber, crashworthiness performance of jute-glass/epoxy tri-tubular cones of three cone arrangements TC-1, TC-2, and TC-3, is selected for this investigation.…”

Section: Introductionmentioning

confidence: 99%

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Performance of tri-tubular conical energy absorber under axial compression

Khalid,

Rohaizan

2024

J. Mech. Eng. Sci.

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Quasi static axial compression loading on tri-tubular cone (TC) has been carried out using LS-DYNA finite element analysis method. Tri-tubular cones of three arrangements; the first arrangement (model TC-1) consists of cone heights of 50 mm, 75 mm and 100 mm where the inner cone is the maximum height. The second arrangement (model TC-2) consists of cone heights of 100 mm, 75 mm, and 50 mm where the outer cone is the maximum height. The third arrangement (model TC-3) consists of three cones of the same height of 100 mm. Cone semi vertex angle of 20o was maintained for all tri-tubular cones tested. Materials used for this research are glass, jute and jute-glass/epoxy. Crashworthiness analyses were performed to investigate the effect of material used, and tri-tubular cone arrangement on peak load. Crush efficiency, and absorbed energy were drawn and discussed. Failure mechanism of the fractured specimens was also discussed. Effect of number of layers and fiber stacking sequence were also investigated. Results show that the cone arrangement TC-3 gives better performance than the cone arrangement TC-2 followed by the cone arrangement TC-1. Maximum load obtained by tri-tubular cone type TC-3 was found higher 7.09% and 14.96% than TC-2 and TC-1 respectively for glass/epoxy. Material saving was achieved by using tri-tubular cones of different heights under compression. Material used has significant influence on the absorbed energy. Failure mode of tri-tubular conical energy absorber was presented and discussed.

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Section: Model Validationsupporting

confidence: 81%

Section: Model Validationsupporting

confidence: 78%