Mechanical Engineering - Strength of Materials - Discussion
Discussion Forum : Strength of Materials - Section 3 (Q.No. 31)
31.
The design of thin cylindrical shells is based on
Discussion:
7 comments Page 1 of 1.
Sumer said:
9 years ago
Longitudinal stress (pd/4t) is less than hoop stress (pd/2t).
Dhavalo said:
9 years ago
Hoop = circumferential.
Sadhik said:
9 years ago
Answer is B.
We will design for lower values here longitudinal stress will be less so it fails first for these longitudinal stress will be designed.
We will design for lower values here longitudinal stress will be less so it fails first for these longitudinal stress will be designed.
Neeraj said:
9 years ago
A is right, the hoop stress should be the design criteria for thin cylindrical shells subjected to internal pressure and desired minimum wall thickness can be estimated from the design equation based on allowable value of hoop stress.
Pranay SB said:
9 years ago
The design should be based on maximum allowable stress. So, here as Hoop stress is maximum, the design will be only based on Hoop stress (Tangential/Circumferential stress).
Samarjeet Dhage said:
8 years ago
Ans. B.
Longitudinal stress is more critical than the hoop.
Design criteria should be longitudinal stress.
The Design is based on critical value (which is early fail) not maximum.
Longitudinal stress is more critical than the hoop.
Design criteria should be longitudinal stress.
The Design is based on critical value (which is early fail) not maximum.
Chandu chavan said:
7 years ago
A is correct. I agree with the given option.
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