Home / Questions / An aligned short fibre composite was produced by resin moulding with the following charact...
An aligned short fibre composite was produced by resin moulding with the following
characteristics;
? Volume fraction of 0.35 (35%) glass fibres
? Fibre diameter is 16 µm and length is 10 mm
? Fibre fracture strength, which equals the fibre tensile strength is 2.0 GPa
? Matrix strength is 95 MPa
? The shear strength at the fibre/matrix interface is 1.1 MPa
a) Calculate the tensile strength of the composite.
b) Calculate the percentage of reinforcement efficiency.
c) Suggest ways to improve reinforcement efficiency.
[6 marks]
2- For a continuous fibre reinforced composite derive an expression for the calculation of
Young’s Modulus of Elasticity transverse to the fibre direction. .
[2 marks]
3- A unidirectionally reinforced glass fibre/epoxy composite is to be fabricated with a 40%
fibre volume fraction. The tensile strength of the fibre is 1300 MPa and the Young’s
modulus is 85 GPa. The tensile strength of the epoxy matrix is 70 MPa with modulus of
elasticity of 2800 MPa. Calculate Young’s Modulus and the tensile strength of the
composite in the longitudinal direction. Assume the fibre and matrix deform elastically.
May 16 2020 View more View Less
In a two-sector economy the consumption function is equal to 8 + 0.7Y and autonomous investment is equal to 22. The equilibrium level of income in the economy is[A]21 [B...
Jan 10 2018Your company plans to produce a product for two more years and then to shut down production. You are considering replacing an old machine used in production with a new ma...
Aug 11 2020Using a supply and demand analysis, explain what will happen to the equilibrium price and quantity of coffee if coffee beans (input of coffee) increases and, at the same ...
May 09 2021Zetatron is an all-equity firm with 100 million shares outstanding, which are currently trading for $7.50 per share. A month ago, Zetatron announced it will change its ca...
May 21 2020You are the chief accountant of Moharamka Plc., which manufactures a wide range of building and plumbing fittings. It has recently taken over a smaller unquoted competito...
Nov 23 2019Un reportero entrevista al dueño de un restaurante, famoso por un menú muy popular entre una variedad de clientes. Completa la primera oración con el pronombre del objeto...
Nov 29 2019Explain the impact on a company’s ability to raise new funds through Initial Public Offering if it intends to trade the new shares in the over-the-counter market.
Apr 30 2021When should an organization be a pay leader, and when should it be a pay follower? >
Jul 13 2020Define somatic cell and germ cell
Jun 25 2021Blue Corporation reported earnings per share of common stock at $12 in 2014 and paid dividends of $3 per share. The current market price per share is $102 and the book va...
Jan 24 2020