An automobile tire with a volume of 0.8 m3 is inflated to a gage pressure of 200 kPa. Calculate the mass of air in the tire if t
1 answer:
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Answer:
0.09cm/sec
Explanation:
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Answer:
volume fraction of fibers is 0.4
Explanation:
Given that for the aligned carbon fiber-epoxy matrix composite:
Diameter (D) = 0.029 mm
Length (L) = 2.3 mm
Tensile strength () = 610 MPa
fracture strength () = 5300 MPa
matrix stress () = 17.3 MPa
fiber-matrix bond strength () = 19 MPa
The critical length is given as:
Since the critical length is greater than the length, the aligned carbon fiber-epoxy matrix composite can be produced.
The longitudinal strength is given by:
making Vf the subject of the formula:
Vf is the volume fraction of fibers.
Therefore:
volume fraction of fibers is 0.4