Guangyong Sun

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.

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.

TL;DR: In this paper, the effect of different thickness gradient patterns on crashworthiness of thin-walled structures with changing wall thickness along the longitudinal direction in a certain gradient has been investigated, and the results yielded from the optimization indicate that the FGT tube is superior to its uniform thickness counterparts in overall crashing behaviors.

TL;DR: In this paper, a group of multi-cell tubes with different cell numbers were comprehensively investigated under both axial and oblique loads, and the results showed that different loading angles have different requirements on cell allocation and optimizations of multiple load cases can yield better solutions in a weighted average fashion, whereas the optimization for separate single load cases (SLC) could result in inferior performance under other load cases.

TL;DR: In this article, the effects of multi-cell configurations and oblique loads on the crashworthiness performance have been under studied and it is found that for the same cell number, the number of corners plays a significant role in enhancing energy absorption.