Journal ArticleDOI
New extruded multi-cell aluminum profile for maximum crash energy absorption and weight efficiency
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TLDR
In this paper, a new trigger and multi-cell profiles with four square elements at the corner were developed to improve the crash energy absorption and weight efficiency in terms of energy consumption.Abstract:
New types of trigger and multi-cell profiles with four square elements at the corner are developed. In terms of the crash energy absorption and weight efficiency, the new multi-cell structure shows dramatic improvements over the conventional square box column. The optimization process with the target of maximizing the specific energy absorption has been successfully carried out, and the example of design process is provided. In the optimization process, the problem of stable progressive folding is also addressed. The analytical solution for calculating the mean crushing force of new multi-cell profiles is derived showing good agreement with the numerical results. Finally, the advantage of the new design over the conventional single or multi-cell profiles is discussed.read more
Citations
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Journal ArticleDOI
On the crashworthiness performance of thin-walled energy absorbers: Recent advances and future developments
TL;DR: In this article, a comprehensive overview of the recent developments in the area of crashworthiness performance of thin-walled (TW) tubular components is given with a special focus on the topics that emerged in the last ten years such as crashworthiness optimisation design and energy absorbing responses of unconventional TW components including multi-cells tubes, functionally graded thickness tubes and functionally graded foam filled tubes.
Journal ArticleDOI
On design optimization for structural crashworthiness and its state of the art
TL;DR: A comprehensive review of the important studies on design optimization for structural crashworthiness and energy absorption is provided in this article, where the authors provide some conclusions and recommendations to enable academia and industry to become more aware of the available capabilities and recent developments in design optimization.
Journal ArticleDOI
Crashworthiness design for functionally graded foam-filled thin-walled structures
TL;DR: In this article, the authors introduced functionally graded foam (FGF) fillers to fill thin-walled structures, aiming to improve crashworthiness, where the foam density varies throughout the depth in a certain gradient.
Journal ArticleDOI
Energy absorption of multi-cell stub columns under axial compression
Xiong Zhang,Hui Zhang +1 more
TL;DR: In this article, the quasi-static axial compression tests are carried out for multi-cell columns with different sections and the significant advantage of multicell sections over single cell in energy absorption efficiency is investigated and validated.
Journal ArticleDOI
Theoretical prediction and numerical simulation of multi-cell square thin-walled structures
TL;DR: Based on the Super Folding Element theory, a theoretical solution for the mean crushing force of multi-cell sections were derived by dividing the profile into three parts: corner, crisscross, and T-shape as discussed by the authors.
References
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Book
Introduction to Optimum Design
TL;DR: This fourth edition of the introduction to Optimum Design has been reorganized, rewritten in parts, and enhanced with new material, making the book even more appealing to instructors regardless of course level.
Journal ArticleDOI
On the Crushing Mechanics of Thin-Walled Structures
Tomasz Wierzbicki,W. Abramowicz +1 more
Journal ArticleDOI
Static and dynamic crushing of square aluminium extrusions with aluminium foam filler
TL;DR: In this paper, an experimental program consisting of 96 tests was carried out to study the axial deformation behavior of triggered, circular AA6060 aluminium extrusions filled with aluminium foam under both quasistatic and dynamic loading conditions.
Journal ArticleDOI
Axial Crushing of Multicorner Sheet Metal Columns
W. Abramowicz,Tomasz Wierzbicki +1 more
Journal ArticleDOI
Relative merits of single-cell, multi-cell and foam-filled thin-walled structures in energy absorption
Weigang Chen,Tomasz Wierzbicki +1 more
TL;DR: In this article, the axial crushing of hollow multi-cell columns was studied analytically and numerically, and closed-form solutions were derived to calculate the mean crushing strength of these sections.
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