Analysis of Buckling Behavior of Aluminum Structures for Crash Absorbing

Yamada, Takayuki; Takayama, Yusuke; Abe, Daisei; Nishimura, Tetsu

doi:10.4271/2004-01-1614

Cited by 5 publications

(2 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Especially, the deformation mechanism of the three-fold point corner was examined for cases of cell walls of the same thickness t (t-t-t model) and one cell wall of double thickness 2t (t-t-2t model). The following results became apparent during this investigation: (1) In deformations in the t-t-t model, all folds develop simultaneously, and the compressive load in the honeycomb increases monotonically during this process. In the t-t-2t model, the compressive load fluctuates with respect to the progressive crushing proc- Vol.…”

Section: Resultsmentioning

confidence: 73%

Deformation Behavior for Axial Crushing of Three-Fold Point Corner

Chen

Yoshida

Ozaki

2009

JCST

View full text Add to dashboard Cite

In this paper, the crushing behavior of a honeycomb structure subjected to axial compression is studied by the finite element method. Deformation mechanisms are clarified to understand the energy absorption in axial compression of a honeycomb structure with a threefold point corner. It is found that, in the crushing process of a model with cell walls of equal thickness (t-t-t model), the folds generated along the full length of the plates crush simultaneously. In contrast, during the crushing process of the model with one wall twice as thick (the t-t-2t model), the folds are concentrated in the middle part of the plates, and the deformation mode becomes progressive. Based on the assumption that strain energies due to traveling hinges are equivalent, the conventional theoretical expression for the average load is applied to the present t-t-2t model, which ignores the occurrence of separation of the glued part. In addition, a theoretical prediction model for the average load of the simultaneous mode is proposed. The validity of the proposed model is then verified by comparing the results with the numerical results from the finite element method.

show abstract

Section: Resultsmentioning

confidence: 73%

Deformation Behavior for Axial Crushing of Three-Fold Point Corner

Chen

Yoshida

Ozaki

2009

JCST

View full text Add to dashboard Cite

show abstract

“…It is increasingly common in designs of thin-walled tubes to incorporate interior partition plates to impart higher energy-absorbing capacity to the tubes, which are used for crushing using the impact of collisions [1][2][3]. However, there have been almost no systematic studies of the properties of tubes with these partition plates.…”

Section: Introductionmentioning

confidence: 99%

Crushing Behavior of Thin-Walled Hexagonal Tubes with Partition Plates

Chen

Masuda

2011

ISRN Mechanical Engineering

View full text Add to dashboard Cite

The crushing behaviour of hexagonal thin-walled tube with partition plates subjected to axial compression is studied by using finite element method. It is found that, in the crushing process, the folds, which generate along the full length of the tube, come to be crushed simultaneously and the compressive load will not descend, since the compressive load produced in the central part does not descend with the folds forming on outer walls. Therefore, in order to suppress a fluctuation of the compression load in crushing of the tube and to raise its average compression load, it is an effective method to introduce corner parts, especially corner parts where three plates intersect, in the geometry of the thin-walled tube.

show abstract

Circumferential strain concentration in axial crushing of cylindrical and square tubes with corrugated surfaces

Chen

Ozaki

2009

Thin-Walled Structures

View full text Add to dashboard Cite

Analysis of Buckling Behavior of Aluminum Structures for Crash Absorbing

Cited by 5 publications

References 1 publication

Deformation Behavior for Axial Crushing of Three-Fold Point Corner

Deformation Behavior for Axial Crushing of Three-Fold Point Corner

Crushing Behavior of Thin-Walled Hexagonal Tubes with Partition Plates

Circumferential strain concentration in axial crushing of cylindrical and square tubes with corrugated surfaces

Contact Info

Product

Resources

About