Publication detail

The Stress State in the Crack-Prone Areas of „Breathing“ Thin Walled Girders – a Sensitivity Analysis

KALA, Z., KALA, J., ŠKALOUD, M., TEPLÝ, B.

Original Title

The Stress State in the Crack-Prone Areas of „Breathing“ Thin Walled Girders – a Sensitivity Analysis

Type

conference paper

Language

English

Original Abstract

The fatigue performance of thin-walled steel girders subjected to many times repeated loading is characterized by the development of fatigue cracks which initiate as a result of the coupled effect of repeated plate buckling and cumulative damage in the girder, at the toes of the fillet welds connecting the flanges and stiffeners with the web sheet. The results of numerous tests conducted with the view to thoroughly study the phenomenon exhibit a large scatter. This is due to various factors, but mainly to the great and by and large unpredictable effect of initial imperfections on the state of stress in those zones of the girder where fatigue cracks initiate and propagate. That is why the objective of the contribution is to report about the main conclusions of a sensitivity analysis performed by the authors from Brno, via the geometrically and materially nonlinear large deflection theory, with the view to “map” the aforesaid effect.

Keywords

stability, stell, fatique, girder, imperfection

Authors

KALA, Z., KALA, J., ŠKALOUD, M., TEPLÝ, B.

RIV year

2004

Released

27. 9. 2004

Location

Rome (Italy)

Pages from

265

Pages to

276

Pages count

12

BibTex

@inproceedings{BUT12593,
  author="Zdeněk {Kala} and Jiří {Kala} and Miroslav {Škaloud} and Břetislav {Teplý}",
  title="The Stress State in the Crack-Prone Areas of „Breathing“ Thin Walled Girders – a Sensitivity Analysis",
  booktitle="The Fourth International Conference on Coupled Instabilities in Metal Structures",
  year="2004",
  pages="12",
  address="Rome (Italy)"
}