Comparative study of automotive bumper with different materials for. In slow speed collisions, this allows the bumper to compress, and then extend back to its original position. Materials such as nylon6 nano composite and polyethylenepalm kernel shelliron filings composites are used. Dec 15, 2018 actually, bumpers in cars are meant for absorbing shock or impact at low velocity like accidentally hitting while reversing the car. Among the parts in the car business substituted by polymeric based composite materials are the bumper bar. Manufacturing system design of automotive bumper manufacturing. It incorporates a rigid bumper shaped barrier fitted with an energyabsorbing material and cover. Impact analysis is done on the car bumper for different speeds of 48kmhr and 120kmhr.
Jan 03, 2015 to simulate the car body using the rigid steel material. Badells collision thus specializes in plastic bumper repair, providing quick, sturdy fixes for all manner of dents and tears. Since the function of bumper is protecting the car from the more serious damage when two cars crash. Impact analysis is done on the car bumper for different speeds of 48kmhr, 75kmhr. In this study, the most important variables like material, structures, shapes and impact conditions are studied for analysis of the bumper beam in order to. The modeling of three type automotive bumpers namely basic bumper model, second with foam material in front of the. Steel is replacing with abs plastic and s2 glass epoxy.
When designing with composite material, it is always needed not only to. The material used for bumper is carbon fiberreinforced polyetherimide pei and abs. This research was to analyze the structural and material employed for car bumper in one of the car, material, structures, shapes and impact conditions are studied for analysis of the bumper beam in order to improve the crashworthiness during collision. From all these analysis and comparison, it can be concluded that the composite materials cfrp carbon fiber. Bumpers are increasingly being designed to mitigate injury to pedestrians struck by cars, such as through the use of bumper covers made of flexible materials. This makes detailing car bumpers somewhat more complicated, as bumpers. Generally, car bumpers are made of a plastic cover reinforced by a bar made of steel, fiberglass composite, plastic or aluminum. At present carbon reinforced and glass reinforced fibers are commonly used in automotive bumpers. Cheaper gas prices, improved employment numbers and continued low interest rates helped automakers sell 17. C materials used in bumper at one time, most car bumpers were made of steel. In this research, a front bumper beam made of steel and composite materials to provide more energy absorption in the structural. Impact analysis on car bumper by varying speeds using. Actually, bumpers in cars are meant for absorbing shock or impact at low velocity like accidentally hitting while reversing the car.
The connector between the car body and the energy absorbing brackets is accomplished by shifting the rear circle grid of the two. Energyabsorption vehicle bumpers should absorb low speed crash energy without damage to other parts of the vehicle. Then, most were made of chrome or a chromeplated material. Because tpo is a higher value material, containing a valuable rubber package for improved impact and durability, the pilot demonstrated the technical recovery of elv bumpers from a broad range of. In this study, the most important variables like material, structures, shapes and impact conditions are studied for analysis of the four wheeler car bumper beam. For many decades, bumpers were made of chrome plated steel, which offers a decent amount of protection but is easily dented and quite heavy and expensive. Coupled with the fact that fuel efficiency of passenger cars is an important issue these days, the best way to increase the fuel efficiency without sacrificing safety is to employ fibre reinforced composite materials in car bumper manufacturing. This comparison showed a reduction in weight, cost. Materials used in automotive manufacture and material. Pdf impact analysis on car bumper by varying speeds using. What materials are used for a automobile bumpers first. The analysis is done on the car bumper for different materials alloy steel, s2 glassepoxy and carbon fiber reinforced pei.
Since the advent of plastics, car bumpers have been made almost exclusively from reinforced thermoplastic olefins. The connector between the car body and the energy absorbing brackets is accomplished by shifting the rear circle grid of the two brackets to the car body. Design and analsis of car bumper by varying materials and. Some bumpers use energy absorbers or brackets and others are made with a foam cushioning material. The car bumper has been made from all types of material. A number of forces combined in 2015 to spur an alltime record of u. Design and strength validation of front car bumper using.
Jul 26, 2017 bumper cars if you love amusement park rides, youve probably experienced the thrill of crashing, bouncing, bone rattling bumper cars. Finally suitable material is finalized for car bumper. Front bumpers, especially, have been lowered and made of softer materials, such as foams and crushable plastics, to reduce the severity of impact on legs. In addition to crushable brackets and a bar, bumpers. In this work, a new composite bumper that has two pads. The car bumper is designed to prevent or reduce physical damage to the front and rear ends of passenger motor vehicles in lowspeed collisions. Material selection of polymeric composite automotive bumper beam. Capability of polypropylene as car bumper materials it well known that in the early stage metal is used for fabricating the car bumper.
Now coming to the selection of material for making bumper, the material should have the capability to absorb the. The bumper beam is mounted to the cars chassis with special impact absorbers. The new bumper tests incorporate a rigid bumper shaped barrier fitted with an energyabsorbing material and cover. Impact analysis is done on the car bumper for different speeds of 40kmhr, 60kmhr. Stiff metal bumpers appeared on automobiles as early as 1904 that had a mainly ornamental function. For example, the required gelling time, custom car bumper environmental conditions, the type and proportion of the curing agent and accelerant. Modelling of car bumper developed by polymer composite material. Disconnect any electrical connectors parking lights, turn signals, license plate lamps, etc. Now coming to the selection of material for making bumper, the material should have the capability to absorb the impact i. Design and analsis of car bumper by varying materials and speeds. An evaluation of the bumper standardas modified in 1982. The objective of this study was to determine the maximum capability of front car bumpers using pineapple leaf fiber. Front bumpers, especially, have been lowered and made of softer materials, such as foams and crushable plastics, to reduce the severity.
Impact analysis of a car bumper using carbon fiber. The given height of the barrier encourages automobile designers to use uniform vehicle bumper heights from the ground. The material selected was 40% mass fraction glass fibre reinforced polypropylene. It applies to front and rear bumpers on passenger cars to prevent the damage to the car body and safety related equipment at different barrier impact speeds of across the full width and on the corners. Impact analysis of bumper and car chassis frame due to. The main materials used for making cars, parts and components, along with future trends, are steel, aluminum, magnesium, copper, plastics and carbon fibers. A bumper is a structure attached to or integrated with the front and rear ends of a motor vehicle.
The connector which is also used for the brackets themselves between the brackets and the bumper beam is achieved by setting up rigid. Replacing one involves a lot of searching for scrap cars or having one specially made. In short, this study discussed material type that best suits to be a car bumper in order to fulfill the aspect of strength. Thus, the use of charcoal carbon as bumper material affects the strenght of bumper itself. Crash analysis on the automotive vehicle bumper international. Program and play your own bumper car game and learn the science behind the crashing fun. Journal of chemical and pharmaceutical sciences issn. First of all, custom bumper manufacturers make the weight ratio of the glue and the glass cloth is 55. Bumper manufacturing process injection molding compression molding engineering study materials a bumper is a structure attached to or. Design and manufacturing issues in the development of. The suitable material that can be used as the bumper in terms of economical but. This is because of the material that has been used to make the bumper. The prime reason for using steel in the body structure is its inherent capability to absorb impact energy in a crash situation.
This material worked well, as it was very strong in a crash, but it was very heavy and dented performance. Modeling and impact analysis of four wheeler car bumper. Pdf fe analysis on vehicle bumper using different materials. It applies to front and rear bumpers on passenger cars to prevent the damage to the car body and safety related equipment at different barrier impact speeds of.
Aug 03, 2018 various materials are used to make cars. Of course, there are many influence factors of building a custom bumper. Design and analysis of front bumper for light passenger vehicles. The material used for bumper is carbon fiberreinforced polyether imide pei and abs.
Jun 10, 2015 the bumper beam is attached to two energy absorbing brackets as shown in figure 1a, and the brackets are attached to the thinwalled structure which is used to simulate the car body using the rigid steel material. Mar 14, 2017 the vast majority of modern bumpers are made of plastic, a material that provides effective shock absorption while minimizing the vehicles weight and cost. The mechanical properties of these materials are then compared with conventional car bumper material such as aluminium and steel. Bumper cars are a perfect example of newtons three laws of motion. Cheon et al 19 developed a composite bumper beam for a passenger car. Design and analysis of automotive carbon fiber composite. Conclusion by comparing three dissimilar materials for car bumper such as composite material carbon fibre and jute fibre, alloy steel.
Optimum bumper thicknesses exist for minimizing total shield weight for all bumper materials investigated. A bumper is a structure attached to or integrated with the front and rear ends of a motor vehicle, to absorb impact in a minor collision, ideally minimizing repair costs. Car bumber system, polyesters, polypropylene, glass fibers, bumber beam. Loosen and remove the fasteners that hold the bumper cover to the reinforcement. Bu02p uniform bumper cover procedures for upcr icar rts. They include information on hand and machine surface preparation, as well as topcoat application when following paint company recommendations. Impact analysis of car front bumper to enhance crashworthiness. The aim of this study was to analyze and study the structure and material employed for car bumper in one of the car manufacturer.
Substitution of polymeric based composite material in car components was successfully implemented in the quest for fuel and weight reduction. The materials selected for automotive bumper has been recently a concern. A case study by a european car manufacturer trails the safety parameters of a bumper. Development process of new bumper beam for passenger car. Car bumper, collision, explicit nonlinear finite element, lsdyna. Impact analysis on car bumper by varying speeds using materials. Application of glass fibre reinforced composite in the. Among the components in the automotive industry substituted by polymeric based composite materials are the bumper beam, bumper fascia, spoiler, connecting rod, pedal box system, and door inner panel. Paint preparation and paint application how tos the.
The car bumper is one of unique area that has benefited from the use of composite material. The best way to increase the fuel efficiency without sacrificing safety is to employ fibre reinforced composite materials in the body of cars. Today, car bumpers can be made from anything from chromeplated material to a variety of different rubber materials or plastics. Drain the transmission of all fluids and place it in a plastic bag with absorbent padding below. Comparative study of automotive bumper with different. The costs of meeting the bumper standards are based on teardown studies of 94 bumper systems representing 1972 prestandard through 1980 makes and model passenger cars. Pdf impact analysis on car bumper by varying speeds. Or wrap bumpers in adequately taped heavyduty plastic bags and padding to protect any sharp or pointed corners. Bumpers were selected for their homogeneity in material as well as sheer size, at an average of 20 pounds per vehicle. Automobiles are a growing market for plastics as car sales increase. The analysis is also carried on the car bumper for different materials abs plastic and s2 glass epoxy.
In this research, a typical new front bumper beam on a passenger cars have been designed with gmt composite materials. The analysis is also carried on the car bumper for different materials abs plastic and carbon fiberreinforced polyetherimide pei. By using steel the weight of the car bumper is more. Design and analysis of a car bumper of various thickness. As car engine design has improved, steel bumper have pretty much disappeared for anything except classic cars. The barrier is 100 mm tall, mounted to an immovable surface and impacted at 10 kmh by the test vehicles. Free shipping on many items browse your favorite brands affordable prices. Box bumpers that are susceptible to scratches or dents. At present the material used for car bumper is steel. An automobiles bumper is the frontmost or rearmost part, designed to allow the. The types of material play a big role to influence the front car bumper condition after crashing it. These 3m sops include the steps for cleaning and sanding bumpers during refinishing. A manufacturing system design covers all aspects of. The various components of the car body are body, sheets, pillarless frame, front and rear doors, front panel, roof panel, floor panel with engine beams, wheel arches, bonnet, windscreen pillar, windscreen, front and rear window, front and rear bumper, cowl assembly, front and rear seats, luggage space as a continuation of the passenger.
All of the data obtained in this study can be explained by an analysis of the states of the impacting pellet and bumper material within the debris. Steel bumper originally plated steel was use for the entire body of a car including the bumper. How badells collision repairs bumpers quickly plastic. Modeling of a car bumper is done using 3d modeling software proe. Analysis and discussions bumper of tata 207 was considered and was modeled in proe software.
Automobile bumper subsystem is the frontal and rear structure of the vehicle that has. Bumper is one of the main parts which are used as protection for passengers from front and rear collision. Numerous developments, improvements in materials and technologies, as well as greater focus on functionality for protecting. The work is mainly focused on replacing exiting car bumper material which is pure plastic with polymer composites. Simulation and failure analysis of car bumper made of pineapple.
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