Biomimetic 4D printing of binary laminated composite bumper with integrated electro-induced shape recovery and chromic response

IF 15.5 2区材料科学 Q1 MATERIALS SCIENCE, COMPOSITES

Advanced Composites and Hybrid Materials Pub Date : 2026-06-09 Epub Date: 2026-08-13 DOI:10.1007/s42114-026-01903-7

Guiwei Li, Qiyuan Cao, Zeyu Yang, Bing Zhang, Jingchao Zheng, Peng Liu, Wenzheng Wu, Luquan Ren

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引用次数: 0

Abstract

Automotive bumpers are essential for vehicle safety, which are evolving toward greater intelligence and multifunctionality. Inspired by the biomimetic prototypes, such as hollow structure of bamboo stems, shape recovery of corn leaves, and color-changing of octopuses, a coupled biomimetic automotive bumper is designed. Based on the mechanism of shape memory polymers (SMPs) that deform at ambient temperature and recover original shape through heating. A programmable multi-material 4D printing strategy is proposed by embedding conductive materials into shape memory polymers, which endows automotive bumpers with bending resistance, electrochromism and electro-induced shape recovery properties. The effects of structural design, printing parameters, voltage values and electrification time on the comprehensive performance of automotive bumpers are investigated. The printing strategy provides new ideas for the visual damage recovery and dynamic appearance adjustment.

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集成电致形状恢复和色响应的二元层合复合材料保险杠仿生4D打印

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来源期刊

Advanced Composites and Hybrid Materials Multiple-

CiteScore

26.00

自引率

21.40%

发文量

185

期刊介绍： Advanced Composites and Hybrid Materials is a leading international journal that promotes interdisciplinary collaboration among materials scientists, engineers, chemists, biologists, and physicists working on composites, including nanocomposites. Our aim is to facilitate rapid scientific communication in this field. The journal publishes high-quality research on various aspects of composite materials, including materials design, surface and interface science/engineering, manufacturing, structure control, property design, device fabrication, and other applications. We also welcome simulation and modeling studies that are relevant to composites. Additionally, papers focusing on the relationship between fillers and the matrix are of particular interest. Our scope includes polymer, metal, and ceramic matrices, with a special emphasis on reviews and meta-analyses related to materials selection. We cover a wide range of topics, including transport properties, strategies for controlling interfaces and composition distribution, bottom-up assembly of nanocomposites, highly porous and high-density composites, electronic structure design, materials synergisms, and thermoelectric materials. Advanced Composites and Hybrid Materials follows a rigorous single-blind peer-review process to ensure the quality and integrity of the published work.