The Strength of metals under Combined Alternating Bending and Torsion.

Nishihara, Toshio; Kawamoto, Minoru

doi:10.1299/jsmemag.44.295_722

Cited by 3 publications

(3 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Experiments on the fatigue strength under combined completely reversed bending and torsion were carried out by Nishihara and Kawamoto [ I ,21,Gough [3] and Matake [4]. As the criteria of this loading condition, Gough published ellipse arc and ellipse quadrant formulas.…”

Section: Introductionmentioning

confidence: 99%

A New Criterion of Fatigue Strength of a Round Bar Subjected to Combined Static and Repeated Bending and Torsion

Kakuno

Kawada

1979

Fat Frac Eng Mat Struct

View full text Add to dashboard Cite

Abstract-Criteria of fatigue strength of a round bar subjected to combined static and repeated bending and torsion have already been published by Findley and Sines together with empirical formulas by Gough. However, it is only Sines' criterion, by which the fatigue limit under combined bending and torsion is calculated, when completely reversed and pulsating fatigue limits and mean stresses are known. The authors show that Sines' criterion does not conform strictly with experimental results and they correct Sines' criterion so that fatigue failure occurs when the octahedral shearing stress amplitude attains a material constant value which decreases not only in proportion to the octahedral normal mean stress, but also in proportion to the octahedral normal stress amplitude. Applying the authors' criterion to combined repeated bending and torsion, plus coexistent static bending and torsion. a design formula was derived. The formula was compared with experimental results of Gough.

show abstract

Section: Introductionmentioning

confidence: 99%

A New Criterion of Fatigue Strength of a Round Bar Subjected to Combined Static and Repeated Bending and Torsion

Kakuno

Kawada

1979

Fat Frac Eng Mat Struct

View full text Add to dashboard Cite

show abstract

“…Fig. 3 illustrates relationship between scatter values T and the angle β for D30 [15]. In addition, calculations were performed with regard to the relation of the ratio of normal stress to shear one depending on angle β.…”

Section: Fatigue Strength Scatter Analysysmentioning

confidence: 99%

Determination of the critical plane orientation depending on the fatigue curves for bending and torsion

Kurek¹,

agoda²

2017

Frattura Ed Integrità Strutturale

View full text Add to dashboard Cite

ABSTRACT. This paper contains a proposition setting out a new way of determining an orientation angle of the critical plane. The applied method involves an analysis of fatigue life results' scatter of several selected materials on the basis of a new criterion of multiaxial fatigue. The expression for the equivalent stress was derived on the basis of pure bending and pure torsion. The paper also contains a verification of the effectiveness of the proposed model by analyzing scatter bands and the value of the ratio of normal to shear stresses.

show abstract

“…Nishihara and Kawamoto [13] tested three carbon steels, an alloy steel, a cast-iron, two durals and a brass. The fatigue fractures of the carbon steels and the cast iron were consistent with the plane of maximum principal stress.…”

Section: Fracture Planes In Fatigue Under In-phase Bending and Torsionmentioning

confidence: 99%

Fatigue Under Out‐of‐phase Bending and Torsion

McDiarmid

1987

Fatigue Fract Eng Mat Struct

View full text Add to dashboard Cite

Test data on fatigue under out-of-phase bending and torsion has been reanalysed. For the materials tested failure has been found to be consistent with the plane of maximum range of maximum range of maximum principal stress, as for the in-phase case. The critical shear planes are assumed to be those associated with this principal stress plane. A multiaxial fatigue damage parameter based on the maximum range of shear stress on the critical shear plane allowing for the effect of the range of normal stress occurring on this plane has been used to develop a proposed set of design curves for in-phase bending and torsion which are conservative for the long life out-of-phase case. NOMENCLATUREfatigue limit under reversed bending fatigue limit under reversed torsion stress amplitude ratio = T~~(~) /uX(=) out of phase angle, u leading T angle measured from bending stress plane angle of fracture plane angle of maximum principal stress plane angle of critical shear plane S1 angle of critical shear plane S2 out of phase angle between z' , and 8, Out of phase angle for angle shear plane Sl Out of phase angle for critical shear plane S2 bending stress amplitude bending stress amplitude at the fatigue limit uniaxial reversed fatigue strength normal stress amplitude on plane of maximum range of shear stress normal stress on a plane maximum normal stress amplitude on a plane shear stress amplitude on plane of maximum range of shear stress torsional shear stress amplitude torsional shear stress amplitude at the fatigue limit shear stress on a plane maximum shear stress amplitude on a plane shear stress amplitude at the fatigue limit on plane of maximum range of shear stress I [ ( t -b/2)/(b/2)'.51

show abstract

The Strength of metals under Combined Alternating Bending and Torsion.

Cited by 3 publications

References 0 publications

A New Criterion of Fatigue Strength of a Round Bar Subjected to Combined Static and Repeated Bending and Torsion

A New Criterion of Fatigue Strength of a Round Bar Subjected to Combined Static and Repeated Bending and Torsion

Determination of the critical plane orientation depending on the fatigue curves for bending and torsion

Fatigue Under Out‐of‐phase Bending and Torsion

Contact Info

Product

Resources

About