Journal ArticleDOI
Dynamic progressive buckling of circular and square tubes
W. Abramowicz,Norman Jones +1 more
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In this paper, a series of over 120 axial crushing tests were conducted on circular and square steel tubes loaded either statically or dynamically, and approximate theoretical predictions for static and dynamic progressive buckling were developed.About:
This article is published in International Journal of Impact Engineering.The article was published on 1986-01-01. It has received 800 citations till now. The article focuses on the topics: Buckling.read more
Citations
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Axial crushing of tubes as an energy dissipating mechanism for the reduction of acceleration induced injuries from mine blasts underneath infantry vehicles
Ala Tabiei,Gaurav Nilakantan +1 more
TL;DR: In this paper, a simple numerical formulation was developed and implemented as a program to improve the capability of analytical approaches while reducing the dependence on computationally intensive numerical simulations, which can predict occupant responses such as lumbar accelerations and compressive forces when used in crashworthiness applications.
Dissertation
Design optimization of vehicle structures for crashworthiness improvement
TL;DR: In this paper, an efficient and practical methodology for design optimization of vehicle structures under frontal impact for crashworthiness improvement is presented, based on identifying the main vehicle structural part contributing most to the total amount of impact energy absorbed in the whole vehicle structure.
Journal ArticleDOI
Dynamic crashing and impact energy absorption of extruded aluminum square tubes
TL;DR: In this paper, the authors investigated the compressive deformation behavior under dynamic loading to evaluate experimentally impact absorption energies of extruded aluminum tubes for space frame design, and they found that the number of plastic folds decreased by increasing the specimen thickness, and the impact absorption energy also decreased considerably as the tube specimens could not absorb energy effectively due to the presence of severe overall bending.
Journal ArticleDOI
Crashworthiness analysis of foam–filled square column considering strain rate effect of the foam
TL;DR: In this paper, the effect of inserting an aluminum foam core to single-and double-walled columns with square cross-sections was studied, and the results showed that the interaction between the foam core and the column wall will change the deformation mode from one localized fold to multiple propagating folds.
Journal ArticleDOI
A theoretical analysis for the dynamic axial crushing behaviour of aluminium foam-filled hat sections
TL;DR: In this paper, a theoretical analysis was performed to predict the dynamic axial crushing behavior of aluminium foam-filled top hat and double hat sections made from mild steel material, and the results showed that the interactive effect was mainly from the aluminium foam.
References
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Journal ArticleDOI
On the Crushing Mechanics of Thin-Walled Structures
Tomasz Wierzbicki,W. Abramowicz +1 more
Journal ArticleDOI
Dynamic axial crushing of square tubes
W. Abramowicz,Norman Jones +1 more
TL;DR: In this paper, the axial progressive crushing of square box columns using a kinematically admissible method of analysis was investigated and four deformation modes which govern the behaviour for different ranges of the parameter c/h.
Journal ArticleDOI
Dynamic axial crushing of circular tubes
W. Abramowicz,Norman Jones +1 more
TL;DR: A series of axial crushing tests on steel circular cylindrical shells loaded either statically or dynamically is reported and compared with various theoretical predictions and empirical relations in this article, where a modified version of Alexander's theoretical analysis for axisymmetric, or concertina, deformations gives good agreement with the experimental results when the effective crushing distance is considered and provided that the influence of material strain rate sensitivity is retained in the dynamic crushing case.
Journal ArticleDOI
The quasi-static crumpling of thin-walled circular cylinders and frusta under axial compression
A.G Mamalis,W Johnson +1 more
TL;DR: In this paper, thin-walled circular cylinders and truncated circular cones of aluminium alloy were subjected to axial static loading and their initial axial length and the outside diameter of cylinders and frusta were kept constant whilst their wall thickness was varied.
Journal ArticleDOI
The effective crushing distance in axially compressed thin-walled metal columns
TL;DR: In this paper, a simplified theoretical model of a compressed rigid-linearly strain hardening metal strip is studied and a closed-form solution is derived for the crushing distance of unstiffened as well as transversly stiffened box columns.