Stress concentration in inclined bar and beam shoulders

článek v časopise - ostatní, Jost

angličtina

The paper deals with stress concentration in inclined bars and beams, where the shoulder radius is often not prescribed in the detail drawings. The commonly accepted notch definition as a stepwise change of the beam cross section, as well as a lack of nomograms or other data on stress concentration in inclined shoulders in the available literature ([1], [2], [3]) support the assumption of negligible stress concentration in inclined shoulders. Several failures of shaft-like components with inclined shoulders made us to investigate the stress concentration in these shoulders. Computational modelling confirmed a rather high stress concentration even in shoulders with a very low inclination angle. Even in the case of the declination angle of 30 degrees, the stress concentration factor is only slightly lower than in a comparable perpendicular ( angle 90 degrees) shoulder. Therefore nomograms for evaluation of stress concentration factors in inclined bar and beam shoulders under basic loading types were created and published in the paper.

inclined shaft shoulder, stress concentration factor, beam, bar under tension and torsion

BURŠA, J.; MUDRÁK, J.; JANÍČEK, P.

2006

20. 11. 2006

Engineering Academy of the Czech Republic, Národní 3, 11720 Praha 1

Brno

1210-2717

Inženýrská mechanika - Engineering Mechanics

2006 (13)

5

Česká republika

329

338

10