Paper Title:
Characterization of Early Fatigue Damage in Welded Structures by Thermal Imaging
  Abstract

The paper presents background information and experimental results regarding the assessment of fatigue damage in welded steel structures by thermographic investigations of thermomechanical coupling effects. The results confirm the high potential of specialized thermographic methods for the experimental characterization of all stages of fatigue damage in welded and un-welded components. The technique provides a new experimental mean to investigate early inhomogeneous fatigue damage as mesoplasticity and cracks in the weld toe. The method has been successfully applied during fatigue testing of welded components and allows detecting localized damage as early as 10% to 20% of the total fatigue lifetime of the tested specimens.

  Info
Periodical
Key Engineering Materials (Volumes 348-349)
Edited by
J. Alfaiate, M.H. Aliabadi, M. Guagliano and L. Susmel
Pages
297-300
DOI
10.4028/www.scientific.net/KEM.348-349.297
Citation
J. Medgenberg, T. Ummenhofer, "Characterization of Early Fatigue Damage in Welded Structures by Thermal Imaging", Key Engineering Materials, Vols. 348-349, pp. 297-300, 2007
Online since
September 2007
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Young Pyo Kim, Cheol Man Kim, Woo Sik Kim, Kwang Seon Shin
Abstract:A clear understanding of fatigue properties for the pipeline steel and its weld is important to provide information for pipeline design...
303
Authors: Imke Weich, Thomas Ummenhofer
Abstract:Research has been initiated on the effects of high frequency peening methods on the fatigue strength. These methods combine an improvement...
429
Authors: Stanislav Seitl, Pavel Hutař, Zdeněk Knésl
Abstract:The formulations of fatigue crack growth prediction are still mostly based on phenomenological models. A commonly used formula in the field...
557
Authors: Wei Ming Du, Fei Xue
Chapter 11: Materials Behavior
Abstract:The crane reel is generally manufactured by section welding method when the diameter is over 380mm. With the cumulative fatigue damage...
2941
Authors: Yue Feng Li, Xu Dong Pan, Guang Lin Wang
Abstract:Disposable mechanical elements with extremely short lives are widely used in the aerospace and defense fields. To reliably evaluate the life...
86