Engineering, 12.08.2020 06:01 loridoz
A composite is made of 20 vol% uniaxially aligned continuous carbon fibers in an epoxy matrix. The axial elastic modulus of the fibers is 400 GPa, the transverse elastic modulus of the fibers is 40 GPa and the elastic modulus of the epoxy is 0.4 GPa. Calculate: (i) the elastic modulus of the composite and the ratio of stress in the fiber to the stress in the matrix when the composite is loaded elastically along the axis of the fibers (ii) the elastic modulus of the composite when it is loaded elastically in a direction transverse to the fiber axis.
Answers: 2
Engineering, 03.07.2019 14:10
Amass of 1.5 kg of air at 120 kpa and 24°c is contained in a gas-tight, frictionless piston-cylinder device. the air is now compressed to a final pressure of 720 kpa. during the process, heat is transferred from the air such that the temperature inside the cylinder remains constant. calculate the boundary work input during this process.
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Engineering, 03.07.2019 15:10
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Engineering, 04.07.2019 18:20
Derive the correction factor formula for conical nozzle i=-(1+ cosa) and calculate the nozzle angle correction factor for a nozzle whose divergence hal-fangle is 13 (hint: assume that all the mass flow originates at the apex of the cone.
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A composite is made of 20 vol% uniaxially aligned continuous carbon fibers in an epoxy matrix. The a...
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