QUESTION 14 A metal matrix composite consists of continuous silicon carbide fibres of radius 25 microns and volume fraction 0.35 embedded in a titanium matrix. The strength of the fibres is described by the Weibull parameters m=6, 00=2500 MPa and Lo=0.025 m. The titanium has a shear yield stress of Ty=165 MPa. Determine the ultimate tensile strength of the fibres, of", in MPa to zero decimal places.
QUESTION 14 A metal matrix composite consists of continuous silicon carbide fibres of radius 25 microns and volume fraction 0.35 embedded in a titanium matrix. The strength of the fibres is described by the Weibull parameters m=6, 00=2500 MPa and Lo=0.025 m. The titanium has a shear yield stress of Ty=165 MPa. Determine the ultimate tensile strength of the fibres, of", in MPa to zero decimal places.
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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Section: Chapter Questions
Problem 1.1MA
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Q14
![QUESTION 14
A metal matrix composite consists of continuous silicon carbide fibres of radius 25 microns and volume fraction 0.35 embedded in a titanium matrix.
The strength of the fibres is described by the Weibull parameters m=6, 00=2500 MPa and Lo=0.025 m. The titanium has a shear yield stress of Ty=165
MPa. Determine the ultimate tensile strength of the fibres, of", in MPa to zero decimal places.
QUESTION 15
Two common failure modes for long-fibre composites under compression are microbuckling and fibre crushing. A CFRP has 0.47 volume fraction
of high-strength carbon fibres with a crushing strength of -3800 MPa. The epoxy matrix has a shear modulus of 2.5 GPa and a shear strength of
50 MPa. Determine the maximum fibre waviness angle (in degrees) that is allowed to ensure fibre-crushing occurs before microbuckling to 2
decimal places.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F1b2cab98-f7b1-44fd-bdf8-bef00885ca5f%2F4d94aac0-a310-4f6e-966c-ae2a838e51df%2Fyhgj5rh_processed.jpeg&w=3840&q=75)
Transcribed Image Text:QUESTION 14
A metal matrix composite consists of continuous silicon carbide fibres of radius 25 microns and volume fraction 0.35 embedded in a titanium matrix.
The strength of the fibres is described by the Weibull parameters m=6, 00=2500 MPa and Lo=0.025 m. The titanium has a shear yield stress of Ty=165
MPa. Determine the ultimate tensile strength of the fibres, of", in MPa to zero decimal places.
QUESTION 15
Two common failure modes for long-fibre composites under compression are microbuckling and fibre crushing. A CFRP has 0.47 volume fraction
of high-strength carbon fibres with a crushing strength of -3800 MPa. The epoxy matrix has a shear modulus of 2.5 GPa and a shear strength of
50 MPa. Determine the maximum fibre waviness angle (in degrees) that is allowed to ensure fibre-crushing occurs before microbuckling to 2
decimal places.
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