Wyniki wyszukiwania - BazTech

Ograniczanie wyników

1 Journal of Theoretical and Applied Mechanics

1 2024

Powiadomienia systemowe

Sesja wygasła!
Sesja wygasła!

Znaleziono wyników: 1

Liczba wyników na stronie

Wyniki wyszukiwania

Wyszukiwano:
w słowach kluczowych: bending and torsion

Sortuj według:

Ogranicz wyniki do:

Use of the biaxial coefficient in determining life for a combination of cyclic bending and torsion of bronze RG7

Małecka Joanna, Łagoda Tadeusz

Journal of Theoretical and Applied Mechanics

2024

Vol. 62 nr 3

547--560

The paper proposes a new multiaxiality coefficient that can characterize fatigue tests for various combinations of bending and torsion. This coefficient can be defined depending on the criterion used. The factor is 1 for cyclic bending and 2 for pure torsion. Based on the fatigue tests of the RG7 bronze, analysis of calculation dispersion of the fatigue life was carried out concerning test results obtained through an experiment. This analysis was performed separately for individual tested combinations and for selected multiaxial fatigue criteria. The selected criteria are Huber-Mises, Gough-Pollard, maximum normal stress, maximum shear stress, and maximum normal and shear stress in the plane defined by shear stresses. The average values of the obtained durability were compared to the newly defined multiaxial coefficient distinguishing different combinations of bending and torsion. Fractographic analysis was also performed for selected samples for all four combinations of fatigue tests. It was found that the failure planes and design critical planes do not coincide.