One of the vehicle subsystem where large advantage is expected in lightweight design is the bumper subsystems. Bumper subsystems are designed to prevent or reduce physical damage to the front or rear ends of passenger motor vehicles during collusion. In this paper, detail design aspects and method of analysis with particular reference to the application of composite materials to automotive fron...

Bumpers play an important role in preventing the impact energy from being transferred to the automobile and passengers. Saving the impact energy in the bumper to be released in the environment reduces the damages of the automobile and passengers. The goal of this paper is to design a bumper with minimum weight by employing the Glass Material Thermoplastic (GMT) materials. This bumper either abs...

The bumper beam is a crucial component of the automobile system, responsible for absorbing impact energy and enhancing safety passengers during collisions. This paper presents design experimental analysis 3D-printed composite–plastic hybrid light structure, designed as collapsible absorber. Exploratory testing was conducted using low-impact tests to investigate failure mechanism absorption capa...

Natural fibers have recently become attractive to automotive industry as an alternative reinforcement for glass fiber reinforced thermoplastics. The best way to increase the fuel efficiency without sacrificing safety is to employ fiber reinforced composite materials in the body of the cars so that weight reduction can be achieved. Designing the structures with the focus on improvement aspects i...

This paper describes an approach, based on the analytical hierarchy process (AHP) that assists decision makers or manufacturing engineers determining the most appropriate manufacturing process to be employd in manufacturing of composite automotive bumper beam at the early stage of product development process. There are 5 types of processes under consideration namely injection moulding (IM), res...

Percutaneous Endoscopic Gastrostomy (PEG) has gained wide acceptance among patients who require prolonged tube-feeding support. A rather unusual complication of PEG placement is migration of the internal bumper through or into the abdominal wall. This was first described in 1988 and is called the buried bumper syndrome (BBS). The syndrome is a late complication of PEG tube placement. The manife...

“Think globally, act locally” was a sticker occasionally affixed to bumpers on U.S. automobiles two decades ago. The bumper sticker signaled a change in the ways that some Americans in the middle decades of the twentieth century chose to think about themselves. For most of our national experience, we Americans have thought about our homeland and relations with other nations in parochial terms. ...

The main purpose of bumper is to absorb shock in case of a collision. Several materials have been used to develop these shock-absorbing capabilities, such as steel, aluminium, glass mat thermoplastics and sheet molding compound. The purpose of this project is to design a bumper which is to improve crashworthiness of the bumper beam. Crashworthiness is the ability of the bumper beam to prevent o...

Many materials in nature exhibit excellent mechanical properties. In this study, we evaluated the bionic bumper structure models by using nonlinear finite element (FE) simulations for their crashworthiness under full-size impact loading. The structure contained the structural characteristics of cattail and bamboo. The results indicated that the bionic design enhances the specific energy absorpt...