5. The drill pipe shown in the figure below is designed as a hollow shaft with an outer diameter of 80mm, inner diameter of 70 mm, weight of 800 N/m and a length of 12 m. The pipe is made of steel alloy with a modulus of elasticity of 200 GPa. If the pipe is subjected to an axial load P of 7500 N and it is turning at a speed of 60 rev/min driven by a 7500 Watt diesel engine, determine the following: a) The average bearing stress. b) The normal compressive stress developed at section a-a located at half the pipe's length.
5. The drill pipe shown in the figure below is designed as a hollow shaft with an outer diameter of 80mm, inner diameter of 70 mm, weight of 800 N/m and a length of 12 m. The pipe is made of steel alloy with a modulus of elasticity of 200 GPa. If the pipe is subjected to an axial load P of 7500 N and it is turning at a speed of 60 rev/min driven by a 7500 Watt diesel engine, determine the following: a) The average bearing stress. b) The normal compressive stress developed at section a-a located at half the pipe's length.
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![5. The drill pipe shown in the figure below is designed as a hollow shaft with an outer diameter of
80mm, inner diameter of 70 mm, weight of 800 N/m and a length of 12 m. The pipe is made of
steel alloy with a modulus of elasticity of 200 GPa. If the pipe is subjected to an axial load P of
7500 N and it is turning at a speed of 60 rev/min driven by a 7500 Watt diesel engine, determine
the following:
a) The average bearing stress.
b) The normal compressive stress developed at section a-a located at half the pipe's length.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F7884aebb-abc9-4ae2-aee8-88ec2e400645%2F220d2b00-e113-42d8-85ce-42b4a4ab2eac%2F8ta1px5_processed.jpeg&w=3840&q=75)
Transcribed Image Text:5. The drill pipe shown in the figure below is designed as a hollow shaft with an outer diameter of
80mm, inner diameter of 70 mm, weight of 800 N/m and a length of 12 m. The pipe is made of
steel alloy with a modulus of elasticity of 200 GPa. If the pipe is subjected to an axial load P of
7500 N and it is turning at a speed of 60 rev/min driven by a 7500 Watt diesel engine, determine
the following:
a) The average bearing stress.
b) The normal compressive stress developed at section a-a located at half the pipe's length.
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