Data are given in the following table for completely reversed strain-controlled fatigue tests on RQC-100 steel. The elastic modulus is E= 200 GPa. Determine constants for the strain-life curve. Ga, MPa Epa Ng. cycles 0.0202 0.0100 631 574 0.01695 227 0.00705 1 030 0.0045 505 0.00193 6450 0.0030 472 0.00064 22 250 0.0023 455 (0.00010) 110000

Structural Analysis
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Data are given in the following table for completely reversed strain-controlled
fatigue tests on RQC-100 steel. The elastic modulus is E= 200 GPa.
Determine constants for the strain-life curve.
Ja, MPa
E pa
Ng. cycles
0.0202
631
0.01695
227
0.0100
574
0.00705
1030
0.0045
505
0.00193
6450
0.0030
0.0023
472
0.00064
22 250
455
(0.00010)
110000
Transcribed Image Text:Data are given in the following table for completely reversed strain-controlled fatigue tests on RQC-100 steel. The elastic modulus is E= 200 GPa. Determine constants for the strain-life curve. Ja, MPa E pa Ng. cycles 0.0202 631 0.01695 227 0.0100 574 0.00705 1030 0.0045 505 0.00193 6450 0.0030 0.0023 472 0.00064 22 250 455 (0.00010) 110000
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