Related Experiment Video
Updated: Aug 15, 2025

09:54
Author Spotlight: Enhancing Fiber Composite Laminate Quality with the Wet Hand Lay-Up/Vacuum Bag Process
Published on: June 30, 2023
2.3K
Lightweight Glass Fiber-Reinforced Polymer Composite for Automotive Bumper Applications: A Review
Hossein Mohammadi1, Zaini Ahmad1, Saiful Amri Mazlan2
1Faculty of Mechanical Engineering, Universiti Teknologi Malaysia, Johor Bahru 81310, Malaysia.
Polymers
|January 8, 2023
Summary
Lightweight vehicles using glass fiber-reinforced composite (GRP) bumper beams offer improved fuel economy and reduced CO2 emissions. This study explores GRP
Area of Science:
- Materials Science
- Automotive Engineering
- Composite Materials
Background:
- Growing global challenges of fuel economy and greenhouse gas emissions necessitate lightweight vehicles.
- Vehicle weight reduction enhances recyclability, crashworthiness, and impact resistance.
- Fiber-reinforced plastics (FRP) composites are key lightweight materials, but impact damage is a concern for structural applications like bumper beams.
Purpose of the Study:
- To investigate the use of high-strength glass fibers in polymer composites for car bumper beams.
- To evaluate the mechanical performance and manufacturing techniques of glass fiber-reinforced composite (GRP) bumper beams.
- To assess GRP as a promising alternative to conventional materials for automotive applications.
Main Methods:
- Literature review on lightweight materials and composite applications in the automotive industry.
- Focus on high-strength glass fibers as reinforcing agents in polymer composites.
- Discussion of mechanical properties and fabrication methods relevant to bumper beam design.
Main Results:
- Glass fiber-reinforced composite (GRP) demonstrates significant promise for automotive applications.
- GRP offers potential advantages over traditional materials like steel and cast iron for bumper beams.
- The study highlights the importance of understanding impact loading effects on FRP composites.
Conclusions:
- GRP bumper beams are a viable lightweight solution for the automotive industry.
- The use of GRP contributes to fuel efficiency and reduced CO2 emissions.
- Further research into impact performance is crucial for widespread adoption of GRP in automotive safety components.
Keywords:
automotive bumper beamglass fiberimpact energy: energy absorptionmechanical designpolymer matrixMore Related Videos
Related Concept Videos
Composite Bodies
1.1K
A composite body is a body made up of multiple parts, connected to form a larger, unified object. Each part has its own weight and center of gravity, which must be considered to determine the center of gravity of the composite body. In cases where the density or specific weight is constant, the center of gravity coincides with the centroid.
Composite bodies have widespread applications in mechanical engineering, from automobiles to aircraft to rockets. For example, an automobile wheel comprises...
Composite bodies have widespread applications in mechanical engineering, from automobiles to aircraft to rockets. For example, an automobile wheel comprises...
1.1K
Fiber Reinforced Concrete
116
Fiber-reinforced concrete significantly enhances the structural and nonstructural properties of traditional concrete by incorporating fibers like steel, glass, and polymers. These fibers, varying from natural ones such as sisal and cellulose to manufactured ones like polypropylene and Kevlar, are mixed into hydraulic cement with aggregates. Steel fibers, often preferred for their robustness, contribute to improved ductility, toughness, and post-cracking performance. The concrete is classified...
116
Design of Prismatic Beams for Bending
346
The design of prismatic beams, structural elements with a uniform cross-section, focuses on ensuring safety and structural integrity under load. The design process begins by determining the allowable stress, either from material properties tables, or by dividing the material's ultimate strength by a safety factor. This safety factor is essential for accommodating uncertainties, and varies depending on the material—timber, steel, or concrete—with each having unique strength and...
346
Moments of Inertia for Composite Areas
1.2K
Composite areas are structures with multiple basic shapes connected in some way. These shapes usually include rectangles, triangles, circles, and other basic shapes that are connected in such a way as to form a single structure. Calculating the second moment of area for a composite area is essential when trying to understand the structure's overall stiffness.
The second moment of area, also known as the moment of inertia, measures a structure's resistance to bending. It is calculated by...
The second moment of area, also known as the moment of inertia, measures a structure's resistance to bending. It is calculated by...
1.2K
Stresses under Combined Loadings
219
When analyzing a bent tube with a circular cross-section subjected to multiple forces, it is crucial to determine the stress distribution in order to maintain structural integrity under varied load conditions.
The process begins by slicing the tube at critical points and analyzing the internal forces and stress components at these sections, focusing on the centroid. Normal stresses, generated by axial forces and bending moments, are either compressive or tensile and vary across the section from...
The process begins by slicing the tube at critical points and analyzing the internal forces and stress components at these sections, focusing on the centroid. Normal stresses, generated by axial forces and bending moments, are either compressive or tensile and vary across the section from...
219
Residual Stresses in Bending
222
In the study of elastoplastic members subjected to bending moments, understanding the loading and unloading phases is crucial for assessing material behavior and structural integrity. During the loading phase, as the bending moment increases, the material initially responds elastically, adhering to Hooke's Law, where stress is directly proportional to strain. When the load exceeds the yield strength, plastic deformation occurs, resulting in permanent strain and deformation that remains even...
222

