A unidirectional continuous fibre reinforced composite is to be manufactured so that the fibres carry 90%...
A unidirectional continuous fibre reinforced composite is to be manufactured so that the fibres carry 90% of a load in the longitudinal direction. The moduli of elasticity of the fibre and matrix materials are 125 GPa and 2.6 GPa respectively.
Determine: i) The volume fraction of fibres that will be required
ii) The longitudinal and transverse elastic moduli of the resulting composite.
Homework Answers
Add Answer to:
A unidirectional continuous fibre reinforced composite is to be
manufactured so that the fibres carry 90%...
(b) For a unidirectional composite lamina with a 60% fibre volume fraction, the fibres are circular...
(b) For a unidirectional composite lamina with a 60% fibre volume fraction, the fibres are circular and are packed in a square array. Assume there is no void. The Young's modulus of the fibre is 180 GPa, the shear modulus of the fibre is 20 GPa. The Young's modulus of the matrix is 30 GPa, the shear modulus of the matrix is 4 GPa. The tensile strengths of fibre and matrix are 2000 MPa and 100 MPa separately. (1) Find...
An unidirectional Glass fibre Epoxy Composite laminate is produced with fibre volume percentage of 40. If...
An unidirectional Glass fibre Epoxy Composite laminate is produced with fibre volume percentage of 40. If the modulus of elasticity of the fibre and matrix are 74 GPa and 2.4 GPa respectively, determine the young's modulus of the composite in the longitudinal transverse directions.
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
Assume a composite made from a fibre volume fraction of 50% using uni directional, continuous fibres...
Assume a composite made from a fibre volume fraction of 50% using uni directional, continuous fibres and a thermoset matrix. Sketch one stress-strain diagram showing the expected tensile behaviour of the fibre, matrix and composite, loaded in a direction parallel with the fibre orientation Use the following values for the properties of the matrix and fibre: Strain to failure (% Strength (GPa) Fibre 2 Matrix 0.3 10
Assume a composite made from a fibre volume fraction of 50% using uni...
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
A composite is produced from a titanium alloy reinforced with aligned silicon carbide fibres. The elastic...
A composite is produced from a titanium alloy reinforced with aligned silicon carbide fibres. The elastic moduli of titanium and silicon carbide are 118 GPa and 380 GPa respectively. The composite contains approximately 50% titanium and 50% fibres. a.Calculate the overall modulus of the composite, explaining your calculations and the assumptions you have made when it is loaded: Show all working and formula used: i.along the direction of fibre length ii.perpendicular to the fibre length. (8 marks) b.Explain briefly why...
A biomaterial composite is made of a polymer matrix with aligned ceramic fibre reinforcement. The composite...
A biomaterial composite is made of a polymer matrix with aligned ceramic fibre reinforcement. The composite is deformed elastically under an applied stress of applied = 100 MPa along the longitudinal direction (i.e. parallel to the fibres). The elastic modulus of the fibre, Ef, is 200 GPa and that of the matrix, Em, is 5 GPa. The volume fraction of the fibre is Ve = 3.3%. What is the strain experienced by the composite? 0 0.05% O 0.23% 01.10% 0...
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...
A unidirectional fiber reinforced composite is made from fibers and matrix with the following properties; (Ef=...
A unidirectional fiber reinforced composite is made from fibers and matrix with the following properties; (Ef= 400 GPa, Em = 4 GPa, modulus of elasticity of fiber and matrix respectively), (G12f= 170 GPa, Gm = 1.43 shear modulus of fiber and matrix), (V12f = 0.2, Vm = 0.4 for Poisson ratios of fiber and matrix respectively). a) Estimate the modulus of elasticity of a unidirectional lamina loaded along the fiber direction. b) Estimate the modulus of elasticity of a unidirectional...
QUESTION 23 The data in the table below is for glass fibre-reinforced nylon 6,6 composites. The...
QUESTION 23 The data in the table below is for glass fibre-reinforced nylon 6,6 composites. The glass fibre constitutes 42% of the total volume of these composites. Elastic Modulus Tensile Strength (GPa) (MPa) 72.5 3400 Glass fibres Nylon 6,6 3.0 76 If continuous aligned glass fibres are used, what would be the longitudinal stiffness of the composite, in GPa
(b) For a unidirectional composite lamina with a 60% fibre volume fraction, the fibres are circular and are packed in a square array. Assume there is no void. The Young's modulus of the fibre is 180 GPa, the shear modulus of the fibre is 20 GPa. The Young's modulus of the matrix is 30 GPa, the shear modulus of the matrix is 4 GPa. The tensile strengths of fibre and matrix are 2000 MPa and 100 MPa separately. (1) Find...
An unidirectional Glass fibre Epoxy Composite laminate is produced with fibre volume percentage of 40. If the modulus of elasticity of the fibre and matrix are 74 GPa and 2.4 GPa respectively, determine the young's modulus of the composite in the longitudinal transverse directions.
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
Assume a composite made from a fibre volume fraction of 50% using uni directional, continuous fibres and a thermoset matrix. Sketch one stress-strain diagram showing the expected tensile behaviour of the fibre, matrix and composite, loaded in a direction parallel with the fibre orientation Use the following values for the properties of the matrix and fibre: Strain to failure (% Strength (GPa) Fibre 2 Matrix 0.3 10
Assume a composite made from a fibre volume fraction of 50% using uni...
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
A biomaterial composite is made of a polymer matrix with aligned ceramic fibre reinforcement. The composite is deformed elastically under an applied stress of applied = 100 MPa along the longitudinal direction (i.e. parallel to the fibres). The elastic modulus of the fibre, Ef, is 200 GPa and that of the matrix, Em, is 5 GPa. The volume fraction of the fibre is Ve = 3.3%. What is the strain experienced by the composite? 0 0.05% O 0.23% 01.10% 0...
A unidirectional fiber reinforced composite is made from fibers and matrix with the following properties; (Ef= 400 GPa, Em = 4 GPa, modulus of elasticity of fiber and matrix respectively), (G12f= 170 GPa, Gm = 1.43 shear modulus of fiber and matrix), (V12f = 0.2, Vm = 0.4 for Poisson ratios of fiber and matrix respectively). a) Estimate the modulus of elasticity of a unidirectional lamina loaded along the fiber direction. b) Estimate the modulus of elasticity of a unidirectional...
QUESTION 23 The data in the table below is for glass fibre-reinforced nylon 6,6 composites. The glass fibre constitutes 42% of the total volume of these composites. Elastic Modulus Tensile Strength (GPa) (MPa) 72.5 3400 Glass fibres Nylon 6,6 3.0 76 If continuous aligned glass fibres are used, what would be the longitudinal stiffness of the composite, in GPa
Most questions answered within 3 hours.
-
6.) A clay vase on a potter's wheel experiences an angular
acceleration of 7.90 rad/s2 due...
asked 7 minutes ago -
How does procurement play a role in the value chain process?
Give an example.
asked 6 minutes ago -
Question about JS form validation:
I want to check these two input (name, question) with
one...
asked 8 minutes ago -
Acetic acid, CH3COOH, Ka = 1.8 x 10-5 can be converted
into the acetate ion, CH3COO-2,...
asked 10 minutes ago -
An optical fiber consisting of a core made of glass (n = 1.667)
surrounded by a...
asked 12 minutes ago -
Bright and dark fringes are seen on a screen when light from a
single source reaches...
asked 20 minutes ago -
C9H12
13C NMR
7 peaks
1H NMR
δ 1.13 (triplet, 3H); δ 1.71 (multiplet, 2H); δ...
asked 32 minutes ago -
Consider a monoatomic ideal gas undergoing the following cycle:
starting point (a), pressure increases at a...
asked 32 minutes ago -
10) (a) In a hypothesis testing procedure explain the difference
between a type 1 and type...
asked 34 minutes ago -
Given the line notation, identify the anodic and
cathodic reactions and overall reaction:
Ag(s)| AgCl(s) |...
asked 54 minutes ago -
The money raised and spent (both in millions of dollars) by
all congressional campaigns for 8...
asked 58 minutes ago -
Annual salaries for employees in a large company are
approximately normally distributed with a mean of...
asked 1 hour ago