GATE Mechanical Behaviour of Materials: Fatigue – Previous Year Questions

4 GATE previous year questions on Fatigue (Mechanical Behaviour of Materials, Metallurgical Engineering) with answers and explanations, from every paper.

1. GATE 2022 MT Q52 (2 marks, Numerical answer) – An alloy has the following high-cycle fatigue data for alternating stress a: Stress (MPa) Cycles to failure ---: ---: 500 1000 400 10000 300 100000…
2. GATE 2023 MT Q27 (1 mark, Multiple select) – Which of the following is/are responsible for reducing the high cycle fatigue life of a component?
3. GATE 2023 MT Q64 (2 marks, Numerical answer) – A specimen has maximum initial surface-crack size 1.5 mm and cyclic stresses max=300 MPa, min=0 MPa. For specimen geometric factor 1, use the graph to…
4. GATE 2024 MT Q54 (2 marks, Numerical answer) – A steel bar has ultimate tensile strength 1000 MPa and fully reversed fatigue limit 250 MPa. By the Goodman relation, its fatigue limit at tensile…