Table of Contents
- 1 Which is the stronger constituent of a composite?
- 2 Which of the following is usually the stronger constituent of a composite laminate?
- 3 Which of the following is not an advantages of composite?
- 4 Are discontinuous Fibres anisotropic?
- 5 Which of the following is not an advantage of composite?
- 6 Why is the strength and toughness of fiber whiskers matrix composite higher compared to particulate matrix composites?
- 7 Which is stronger – continuous fiber or discontinuous fiber reinforcement composite?
- 8 What is the difference between critical length and discontinuous fibers?
Which is the stronger constituent of a composite?
The main constituents of structural composites are the reinforcements and the matrix. The reinforcements, which are stronger and stiffer, are dispersed in a comparatively less strong and stiff matrix material.
What are the advantages of discontinuous aligned Fibres over continuous aligned Fibres?
Hence discontinuous fibers are less effective in strengthening the material, however, their composite modulus and tensile strengths can approach 50-90\% of their continuous and aligned counterparts. And they are cheaper, faster and easier to fabricate into complicated shapes.
Which of the following is usually the stronger constituent of a composite laminate?
Explanation: Matrix constituents are generally softer whereas reinforced constituents provide hardness to the composites. 4. In sandwich composites, which of the following material can be used for filling purpose?
What are the differences between fiber reinforced composite and particulate reinforced composite?
Particle Reinforced Composites. Particle reinforcing in composites is a less effective means of strengthening than fibre reinforcement. Particulate reinforced composites achieve gains in stiffness primarily, but also can achieve increases in strength and toughness.
Which of the following is not an advantages of composite?
14. Which of the following is not an advantage of composites? Explanation: Composites are light-weight and versatile. All the other options are correct.
Which statement about a composite material is true?
Answer: Explanation: They’re made up of more than one substance. They have the same or similar properties as the materials used to make them.
Are discontinuous Fibres anisotropic?
Fibre reinforced composites are classed as either continuous (long fibres) or discontinuous (short fibres). The composite is considerably weaker along other directions and is therefore highly anisotropic.
What is discontinuous reinforcement?
DISCONTINUOUS-FIBER REINFORCEMENT Discontinuous-fiber reinforcement enhances the properties and performance of concrete in two ways: it increases the tensile properties of the material and reduces concrete shrinkage and the associated cracking.
Which of the following is not an advantage of composite?
Which is the most common polymer type in fiber reinforced polymer composites?
The most common fiber-reinforced polymer composites are based on glass fibers, cloth, mat, or roving embedded in a matrix of an epoxy or polyester resin.
Why is the strength and toughness of fiber whiskers matrix composite higher compared to particulate matrix composites?
Whiskers are defect free and hence more stronger and stiffer than fibers.
Why are Fibre reinforced composites useful?
Fiber-reinforced polymer composites (FRPC) open up great material potential. The main reasons for using FRPC are the lightweight design potential, the adjustable deformation behavior, good corrosion resistance, and low electrical conductivity depending on the fiber material.
Which is stronger – continuous fiber or discontinuous fiber reinforcement composite?
In continuous fibers the material of the properties will be specific in each direction. Composites are always tailored made to suit an application so the statement ‘Which is stronger – continuous fiber or discontinuous fiber reinforcement composite?’ may not be relevant in the true sense. Though as a whole continuous fibers are stronger..
What is the property of reinforcement in a composite material?
The property also depends on size of individual discontinuous fiber. The reinforcement in a composite can be a continuous fiber or discontinuous fibers. The answer to your question depends on the direction in which the composite is being loaded.
What is the difference between critical length and discontinuous fibers?
The fibers are shorter than the critical length. Hence discontinuous fibers are less effective in strengthening the material, however, their composite modulus and tensile strengths can approach 50-90\% of their continuous and aligned counterparts.
What is the best length of fiber for composites?
Fiber lengths greater that 15 times the critical length are considered optimal. Aligned and continuous fibers give the most effective strengthening for fiber composites. Discontinuous & Aligned