Fatigue Strength · Machine Design · GATE ME

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Marks 1

GATE ME 2017 Set 2
A machine component made of a ductile material is subjected to a variable loading with $${\sigma _{\min }} = - 50MPa$$ and $${\sigma _{\max }} = 50MP...
GATE ME 2015 Set 3
For the given fluctuating fatigue load, the values of stress amplitude and stress ratio are respectively. ...
GATE ME 2015 Set 1
Which one of the following is the most conservative fatigue failure criterion?
GATE ME 2014 Set 2
In a structure subjected to fatigue loading, the minimum and maximum stresses developed in a cycle are $$200$$$$MPa$$ and $$400MPa$$ respectively. The...
GATE ME 2014 Set 3
A rotating steel shaft is supported at the ends. It is subjected to a point load at the center. The maximum bending stress developed is $$100 MPa.$$ I...
GATE ME 2003
In terms of theoretical stress concentration factor $$\left( {{k_t}} \right)$$ and fatigue stress concentration factor $$\left( {{k_f}} \right),$$ th...
GATE ME 2003
The $$S$$-$$N$$ curve for steel becomes asymptotic nearly at
GATE ME 2002
A static load is mounted at the center of a shaft rotating at uniform angular velocity. This shaft will be designed for
GATE ME 1993
The yield strength of a steel shaft is twice its endurance limit. Which of the following torque fluctuations represent the most critical situation acc...
GATE ME 1992
Fatigue strength of a rod subjected to cyclic axial force is less than that of a rotating beam of the same dimensions subjected to steady lateral forc...
GATE ME 1991
In a shaft with a transverse hole, as the hole to the shaft diameter ratio ___________ (increases / decreases), the torsional stress concentration fac...
GATE ME 1990
The process of shot peening increases the fatigue life of steel springs mainly because it results in
GATE ME 1989
Stress concentration in a machine component of a ductile material is not so harmful as it is in a brittle material because

Marks 2

GATE ME 2017 Set 1
A machine element has an ultimate strength $$\left( {{\sigma _u}} \right)$$ of $$600\,\,N/m{m^2},$$ and endurance limit $$250$$ $$\,N/m{m^2}.$$ The ...
GATE ME 2016 Set 2
In a structural member under fatigue loading, the minimum and maximum stresses developed at the critical point are $$50$$ $$MPa$$ and $$150$$ $$MPa,$$...
GATE ME 2013
A bar is subjected to fluctuating tensile load from $$20$$ $$kN$$ to $$100$$ $$kN.$$ The material has yield strength of $$240$$ $$MPa$$ and endurance ...
GATE ME 2009
A forged steel link with uniform diameter of $$30mm$$ at the centre is subjected to an axial force that varies from $$40kN$$ in compression to $$160kN...
GATE ME 2007
A thin spherical pressure vessel of $$200mm$$ diameter and $$1mm$$ thickness is subjected to an internal pressure varying from $$4$$ to $$8MPa.$$ Assu...
GATE ME 2006
A cylindrical shafts is subjected to an alternating stress of $$100MPa.$$ Fatigue strength to sustain $$1000$$ cycles is $$490MPa.$$ If the corrected ...
GATE ME 1987
A ductile material having an endurance limit of $$196$$ $$N/m{m^2}$$ and the yield point at $$294$$ $$N/m{m^2}$$ is stressed under variable load. The ...
Graduate Aptitude Test in Engineering
Class 12