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GATE ME 2018 Set 2 — Question 31

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NAT+1 / -0EasyFatigue, S-N Diagram & EnduranceStatic & Dynamic LoadingMachine Design

Machine Design → Static & Dynamic Loading → Fatigue, S-N Diagram & Endurance

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Question

Fatigue life of a material for a fully reversed loading condition is estimated from σa=1100N−0.15\sigma_a = 1100 N^{-0.15}, where σa\sigma_a is the stress amplitude in MPa and NN is the failure life in cycles. The maximum allowable stress amplitude (in MPa) for a life of 1×1051 \times 10^5 cycles under the same loading condition is ________ (correct to two decimal places).
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