Homework Answers
final answers
a ) Volume fraction for fibre =0.8 and for matrix =0.2
b) Elastic modulus of composite =34*10^6 lb/in^2
c) load shared by fibre = 97.842lbs
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Q4 Acomposite consists of 65% polyester resin is reinforced by continuous and aligned glass fibers. The modulus elasticity of hardened resin is 4 0 GPa and the modulus elasticity of the ibers la...
Q4
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Find the longitudinal tensile strength of resulting composite. Given: Ti-aluminum metal matrix composite- Fiber volume f...
Find the longitudinal tensile strength of resulting
composite.
Given: Ti-aluminum metal matrix composite- Fiber volume
fraction: 27%,Ti matrix: at 427°C, Em = 87.5 GPa, νm = 0.3. Alumina
fibers: at 427°C, Ef = 379 GPa, νf = 0.27
Ti-aluminum metal matrix composite Fiber volume fraction: 27% Ti matrix: at 427°C, Em 87.5 GPa, v 0.3 . Alumina fibers: at 427"C, E,-379 GPa, v,-0.27 o Find the longiiudinal tnsile sirengih of resuling cormpositc
Ti-aluminum metal matrix composite Fiber volume fraction: 27%...
Question 6: A new generation of fiber-matrix composite is designed for the manufacturing of a med...
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It is desired to produce an aligned carbon fiber-epoxy matrix composite having a 0.16 volume fraction...
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Chapter 16, Problem 16.17 Compute the longitudinal tensile strength of an aligned glass fiber-epoxy matrix composite...
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Q4
Acomposite consists of 65% polyester resin is reinforced by continuous and aligned glass fibers. The modulus elasticity of hardened resin is 4 0 GPa and the modulus elasticity of the ibers la 52.0 GPa. Compute: a. The overall modulus elasticity of composite in the longitudinal direction parallel 04. to fiber direction b. The load carried by each matrix and iber phase, If uniaxial srss of 50 MPa is applied in longitudinal direction on the 250 mm2 cross-sectional area. c....
An E-glass fiber-thermoset polyester composite tube is carefully constructed with the objective of achieving maximum axial tensile modulus. The glass fibers are continuous and highly aligned parallel to the tube axis. The tube contains 70% by volume glass, and has dimensions: length lm, diameter 50 mm, and wall thickness Predict the following deformations: a) The changes in length and diameter when the tube carries an axial tensile load of 10kN. The change in diameter when the tube is internally pressurized...
Find the longitudinal tensile strength of resulting
composite.
Given: Ti-aluminum metal matrix composite- Fiber volume
fraction: 27%,Ti matrix: at 427°C, Em = 87.5 GPa, νm = 0.3. Alumina
fibers: at 427°C, Ef = 379 GPa, νf = 0.27
Ti-aluminum metal matrix composite Fiber volume fraction: 27% Ti matrix: at 427°C, Em 87.5 GPa, v 0.3 . Alumina fibers: at 427"C, E,-379 GPa, v,-0.27 o Find the longiiudinal tnsile sirengih of resuling cormpositc
Ti-aluminum metal matrix composite Fiber volume fraction: 27%...
Question 6: A new generation of fiber-matrix composite is designed for the manufacturing of a medical examination table. It is desired to produce an aligned carbon fiber-epoxy matrix composite having a longitudinal tensile strength of 550 MPa. Calculate the volume fraction of fibers necessary if the average fiber diameter and length are 0.02 mm and 0.6 mm, respectively, the fiber fracture strength is 4.5 GPa, the fiber-matrix bond strength is 27 MPa, and the matrix stress at composite failure is...
It is desired to produce an aligned carbon fiber-epoxy matrix composite having a 0.16 volume fraction of fibers. Calculate (a) the critical fiber length, and (b) the longitudinal strength of the composite (in MPa), assuming the following: (1) the average fiber diameter is 0.018 mm, (2) the average fiber length is 5.7 mm, (3) the fiber fracture strength is 2.0 GPa, (4) the fiber-matrix bond strength is 84 MPa, (5) the matrix stress at fiber failure is 27.1 MPa, (6)...
1. A fishing rod is made of fiberglass/epoxy composites with a circular cross R. The volume fraction of the continuous filaments in the composite is os continuous filaments in the composite is 0.5 and each fiber the elastic modulus of the fiber is 10 Msi and the matrix has a radius r. Suppose R = 1000r, the elastic modulus of the fiber is 10 is 0.5 Msi. The ultimate strength of the fiber is 50 ksi. (a) Calculate the number...
Chapter 16, Problem 16.17 Compute the longitudinal tensile strength of an aligned glass fiber-epoxy matrix composite in which the average fiber diameter and length are 0.0135 mm (0.53 x 10-4 in.) and 1.58 mm (0.062 in.), respectively, and the volume fraction of fibers is 0.33. Assume that (1) the fiber-matrix bond strength is 100 MPa (14,500 psi), (2) the fracture strength of the fibers is 3500 MPa (5 x 105 psi), and (3) the matrix stress at composite failure is...
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