Cyclic Stresses (Fatigue); The S-N Curve4. The fatigue data for a ductile cast iron are given as follows:Cycles to FailureStressAmplitude[MPa (ksi)]248 (36.0)236 (34.2)224 (32.5)213 (30.9)201 (29.1)193 (28.0)193 (28.0)193 (28.0)1 × 1053 x 1051 x 10⁰3 x 1061 x 1073 x 1071 1083 × 108(a) Make an S-N plot (stress amplitude versus logarithm cycles to failure) using these data.(b) What is the fatigue limit for this alloy?(c) Determine fatigue lifetimes at stress amplitudes of 230 MPa (33,500 psi) and 175 MPa (25,000psi).(d) Estimate fatigue strengths at 2 × 105 and 6 × 106 cycles.

Answered: . The fatigue data for a ductile cast…

. The fatigue data for a ductile cast iron are gi Cycles to Failure Stress Amplitude [MPa (ksi)] 248 (36.0) 236 (34.2) 224132 51 1 × 105 3 x 105 106

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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