Design of crashworthy attenuator structures as a part of vehicle safety against impact: Application of waste aluminum can-based material

• 作者: Laksmana Widi Prasetya Aditya Rio Pr abowo Ubaidillah Ubaidillah Iwan Istanto Nur Azmah Binti Nordin
• 来源期刊: 力学快报（英文版）
• 年，卷（期）: 2021,（2）
• 所属期刊栏目: Solid Mechanics
• 页码范围: 85-93
• 页数: 9页
• 语种: 英文
• DOI: 10.3969/j.issn.2095-0349.2021.02.005

摘要

The impact attenuator is an essential system in both race cars and urban vehicles. The structure of an impact attenuator serves as a safety barrier between the impacted surface and the driver in an accident. Attenuator materials tend to have a high price; thus, alternative materials were explored in the current work, i.e., used cans from food and beverage containers. The study deployed a nonlinear finite element algorithm to calculate a series of impacts on the attenuator structures. The thickness of the cans and velocity of the impact were considered as the main parameters. Analysis results concluded that the at- tenuator's average energy was 16000 J for a can thickness of 1 mm. This value is more than two times the 0.5 mm thick used cans. The attenuator's new design was then matched with an attenuator regulation, and the results surpassed the standard value of 7350 J.