What is the ratio of the yield stress in power driven shop rivets rela...
The yield stress in power drive rivets is 200MPa and bearing stress of mild steel is 250MPa.
Thus, ratio
= 200/250
=0.8
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What is the ratio of the yield stress in power driven shop rivets rela...
Ratio of yield stress to permissible bearing stress
Yield stress is the stress at which a material begins to deform plastically, while permissible bearing stress is the maximum stress that a material can withstand without undergoing any permanent deformation.
The ratio of yield stress to permissible bearing stress gives an indication of the strength of a material.
Calculation of ratio
For power driven shop rivets, the yield stress is typically around 40,000 psi (pounds per square inch), while the permissible bearing stress of mild steel is around 50,000 psi.
Therefore, the ratio of yield stress to permissible bearing stress is:
40,000 / 50,000 = 0.8
Therefore, option B (0.8) is the correct answer.
What is the ratio of the yield stress in power driven shop rivets rela...
Yield stress in mild steel =250mpa(N/mm^2)
permissible bearing stress in rivet=300mpa(N/mm^2)
250/300=0.83
answers (b)