geometric stress concentration factor
Stepped shaft in torsion
Dimension ratio D/d
1.09
1.20
1.33
2.00
Dimension ratio r/d
Coefficient A
Coefficient b
Geometric stress concentration Kt
1)
1)
Stress concentration factor Kt for a shaft with a shoulder fillet in torsion:
K
t
=A(r/d)^b
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