Engineering, 11.03.2020 23:07 reneewilliams20

(3) Consider using vacuum bagging technique to make a carbon/epoxy composite. The thickness of the assembly is 1.2 mm. Assuming that the pressure applied in the autoclave is 547 kPa. Determine: (12’) a). Effective stress absorbed by the fiber network. b). Pressure in the resin. c). Speed of flow of the resin out of the fiber network when viscosity =1 Pa·s. (hint: using Kozeny-Carman to estimate the permeability of fiber reinforcement and then the 1-D Darcy’s law) The fiber volume fractions are: Initial fiber volume fraction Vo = 0.50 Allowable fiber volume fraction: Va = 0.85 Final volume fraction Vf = 0.68. Fiber modulus: E = 234 GPa Fiber aspect ratio: β = 300 Fiber radius rf=3.5×10-6 m Kozeny-Carman constant k0=18

Answers: 1

Show answers

Another question on Engineering

Engineering, 03.07.2019 15:10

If you were designing a bumper for a car, would you prefer it to exhibit elastic or plastic deformation? why? consider the functions of a bumper in both a minor "fender-bender" and a major collision.

Answers: 1

Answer

Engineering, 04.07.2019 18:10

Apump is used to circulate hot water in a home heating system. water enters the well-insulated pump operating at steady state at a rate of 0.42 gal/min. the inlet pressure and temperature are 14.7 lbf/in.2, and 180°f, respectively; at the exit the pressure is 60 lbf/in.2 the pump requires 1/15 hp of power input. water can be modeled as an incompressible substance with constant density of 60.58 lb/ft3 and constant specific heat of 1 btu/lb or. neglecting kinetic and potential energy effects, determine the temperature change, in °r, as the water flows through the pump.

Answers: 1

Answer

Engineering, 04.07.2019 18:10

Water at 55c flows across a flat plate whose surface temperature is held constant at 95c. if the temperature gradient at the plate's surface for a given value of x is 18 c/mm, find a) local heat transfer coefficient. b) heat flux

Answers: 3

Answer

Engineering, 04.07.2019 19:10

Aplate of dimensions 3 m x 3 m is placed 0.37 mm apart from a fixed plate. the plate requires a force of 2n to move at speed of 45 cm/s. evaluate the viscosity of the fluid in between the plates

Answers: 3

Answer

You know the right answer?

(3) Consider using vacuum bagging technique to make a carbon/epoxy composite. The thickness of the a...

Questions