A continuous and aligned fiber-reinforced composite is to be produced consisting of 41 vol% aramid fibers...
A continuous and aligned fiber-reinforced composite is to be produced consisting of 41 vol% aramid fibers and 59 vol% of a polycarbonate matrix; mechanical characteristics of these two materials are as follows:
| Modulus of Elasticity [GPa (psi)] | Tensile Strength [MPa (psi)] | |||
| Aramid fiber | 131 (19 × 106) | 3600 (520,000) | ||
| Polycarbonate | 2.4 (3.5 × 105) | 65 (9425) |
Assume that this composite has a cross-sectional area of 320 mm2 (0.50 in.2) and is subjected to a longitudinal load of 49700 N (11200 lbf).
(a) Calculate the fiber-matrix load ratio.
(b) Calculate the actual load carried by fiber phase. (N)
(c) Calculate the actual load carried by matrix phase. (N)
(d) Compute the magnitude of the stress on the fiber phase. (Mpa)
(e) Compute the magnitude of the stress on the matrix phase. (MPa)
(f) What strain is expected by the composite?
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A continuous and aligned fiber-reinforced composite is to be
produced consisting of 41 vol% aramid fibers...
Continuous and aligned fiber-reinforced composite with cross-sectional area of 340 mm2 (0.53 in.2) is subjected to...
Continuous and aligned fiber-reinforced composite with cross-sectional area of 340 mm2 (0.53 in.2) is subjected to a longitudinal load of 50000 N (11200 Ibf). Assume Vf 0.3, Vm-0.7,Ef-131 GPa and Em 2.4 GPa (a) Calculate the fiber-matrix load ratio. (b) Calculate the actual load carried by fiber phase (c) Calculate the actual load carried by matrix phase (d) Compute the magnitude of the stress on the fiber phase (e) Compute the magnitude of the stress on the matrix phase (f)...
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In an aligned and continuous carbon fiber-reinforced nylon 6,6 composite, the fibers are to carry 94...
In an aligned and continuous carbon fiber-reinforced nylon 6,6 composite, the fibers are to carry 94 % of a load applied in the longitudinal direction. Modulus of Elasticity [GPa(psi)] Tensile Strength [MPa(psi)] Carbon fiber 260 (37 ×106) 4000 (5.8 ×105) Nylon 6,6 2.8 (4.0 ×105) 76 (11,000) (a) Using the data provided, determine the volume fraction of fibers that will be required. (b) What will be the tensile strength of this composite? Assume that the matrix stress at fiber failure...
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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....
Question 1. A continuous and aligned fibre-reinforced composite material is to be produced consisting of 40...
Question 1. A continuous and aligned fibre-reinforced composite material is to be produced consisting of 40 vol % glass fibres and 60 vol % of an epoxy matrix. The mechanical characteristics of these two materials are as follows: MaterialModulus of Elasticity rcture Strength (GPa) (MPa) 2500 Glass Fibre 76 Epoxy 3.35 58 For this composite material, estimate by calculation the following parameters: i. The longitudinal tensile strength ii. The longitudinal modulus of elasticity
For a continuous and aligned fiber-reinforced composite, the modulus of elasticity in the longitudinal directions is...
For a continuous and aligned fiber-reinforced composite, the modulus of elasticity in the longitudinal directions is 39.4 GPa. If the volume fraction of fibers is 0.60 and the modulus of elasticity of matrix phase is 2.67 GPa, determine the modulus of elasticity of the composite in transverse direction. O 6.28 GP 4.25 GP 4.37 GPa O 6.40 GPS
Chapter 16, Problem 16.17 Compute the longitudinal tensile strength of an aligned glass fiber-epoxy matrix composite...
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...
It is desired to produce an aligned carbon fiber-epoxy matrix composite having a 0.16 volume fraction...
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)...
Problem 16.15 It is desired to produce an aligned carbon fiber-epoxy matrix composite having a 0.13...
Problem 16.15 It is desired to produce an aligned carbon fiber-epoxy matrix composite having a 0.13 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 0.013 mm, (2) the average fiber length is 5.7 mm, (3) the fiber fracture strength is 3.0 GPa, (4) the fiber-matrix bond strength is 84 MPa, (5) the matrix stress at fiber failure is 18.0...
Question 6: A new generation of fiber-matrix composite is designed for the manufacturing of a med...
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...
Continuous and aligned fiber-reinforced composite with cross-sectional area of 340 mm2 (0.53 in.2) is subjected to a longitudinal load of 50000 N (11200 Ibf). Assume Vf 0.3, Vm-0.7,Ef-131 GPa and Em 2.4 GPa (a) Calculate the fiber-matrix load ratio. (b) Calculate the actual load carried by fiber phase (c) Calculate the actual load carried by matrix phase (d) Compute the magnitude of the stress on the fiber phase (e) Compute the magnitude of the stress on the matrix phase (f)...
Problem 8 10 pts) A continuous and aligned fiber-reinforced composite part has cross sectional area of 300 mm2 and consists of35 vol% glass fibers and 65 vol% of a nylon 6,6 matrix. If a longitudinal tensile load of 50kN is applied to the composite, determine (a) the longitudinal modulus of elasticity of the composite, (b) the longitudinal strain in the composite, (c) the stress in each phase (fiber and matrix), and (d) the magnitude of the load carried by each...
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....
Question 1. A continuous and aligned fibre-reinforced composite material is to be produced consisting of 40 vol % glass fibres and 60 vol % of an epoxy matrix. The mechanical characteristics of these two materials are as follows: MaterialModulus of Elasticity rcture Strength (GPa) (MPa) 2500 Glass Fibre 76 Epoxy 3.35 58 For this composite material, estimate by calculation the following parameters: i. The longitudinal tensile strength ii. The longitudinal modulus of elasticity
For a continuous and aligned fiber-reinforced composite, the modulus of elasticity in the longitudinal directions is 39.4 GPa. If the volume fraction of fibers is 0.60 and the modulus of elasticity of matrix phase is 2.67 GPa, determine the modulus of elasticity of the composite in transverse direction. O 6.28 GP 4.25 GP 4.37 GPa O 6.40 GPS
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...
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)...
Problem 16.15 It is desired to produce an aligned carbon fiber-epoxy matrix composite having a 0.13 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 0.013 mm, (2) the average fiber length is 5.7 mm, (3) the fiber fracture strength is 3.0 GPa, (4) the fiber-matrix bond strength is 84 MPa, (5) the matrix stress at fiber failure is 18.0...
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...
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