What is bumper beam?
The bumper beam is the main structure for absorbing the energy of collisions . The automobile bumper weight can be reduced by the use of composite and high-strength metallic sheet of a thinner thickness material , . Efforts were taken to model the bumper as similar as possible to reality.
How much force can a bumper take?
Today, standard passenger vehicle bumpers have a rigid reinforcing bar under the outer cover, with sections of compressible foam or plastic underneath. In the United States, passenger car bumpers must absorb a five mph impact from another vehicle with no damage to the car body.
How does a bumper beam work?
The bumper beam is a key structure that helps to absorb the kinetic energy from a high-impact collision and to provide bending resistance in a low-impact collision . Bumper beam will absorb the impact collision energy in a controlled manner before the energy gets transferred to the passenger compartment.
What is front bumper beam?
Bumper beam designed to prevent or reduce physical damage to the front or rear ends of passenger motor vehicles in collision condition. They protect the hood, trunk, grill, fuel, exhaust and cooling system as well as safety related equipment such as parking lights, headlamps and taillights, etc.
What are bumper beams made of?
The bumper beam material today is mostly steels and aluminum alloys, but carbon fiber composites have the potential to reduce the bumper weight significantly.
What materials are car bumper made of?
Modern car bumpers are made from thermoplastic olefins, a blend of plastic molecules, rubber, and a reinforcing filler like carbon fiber or calcium carbonate.
Are plastic bumpers good?
Plastic Bumpers Plastic is the preferred material for modern car bumpers for several reasons. Plastic is also considered to be safer than metal as a bumper material since plastic does a better job of absorbing an impact during an accident.
Are car bumpers plastic or fiberglass?
Bumpers on today’s cars generally consist of a plastic cover and underneath, a reinforcement bar made of steel, aluminum, fiberglass composite, or plastic.
What are 5 mph bumpers?
What is a 5 mph bumper? Five miles per hour is a benchmark, an impact speed at which bumpers could easily — but generally don’t — prevent all but very minor cosmetic damage in barrier tests.
Why do cars no longer have bumpers?
The primary reason why cars have no longer bumpers is due to the federal law that needs rear and front bumper to withstand the results of a lower speed with no or little damage to the car. Individuals often like a clean look with no rear or front bumpers.
Are bumpers made of steel?
Generally, car bumpers are made of a plastic cover reinforced by a bar made of steel, fiberglass composite, plastic or aluminum. In addition to crushable brackets and a bar, bumpers sometimes incorporate polypropylene foam or formed thermoplastic.
What plastic are car bumpers?
Bumpers of most modern automobiles have been made of a combination of polycarbonate (PC) and acrylonitrile butadiene styrene (ABS) called PC/ABS.
What are the features of a bumper beam?
At the end I-shape bumper beam with x-ribbing pattern was chosen as a final concept design. absorb kinetic energy during c ollision. In low to occupant from severe injury. Previously steel or aluminum. The integrity between parts in overall bumper beam performance.
Is the car bumper beam subject to ResearchGate?
This person is not on ResearchGate, or hasn’t claimed this research yet. Content may be subject to copyright. vehicle collision. Currently, most of the researches focus on the substitution of new material such as polymeric
How are design and sensitivities analysis on car bumpers?
Designing a car bumper beam and successive analysis on how it affects the parameters such as shape, thickness and materials will help in enhancing the beam strength at the same time brings a reduction in weight. This also provides a way of using materials that are recyclable and biodegradable which help in controlling
Why is pultruded composite car bumper beam important?
The study has two parts. The first part is dedicated to the development of pultruded composite car bumper beam with the aim to maintain or improve its mechanical properties and energy absorption capability with respect to the steel beam that is the reference normal production solution. The material change is mainly aimed to mass reduction.