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Effect of fatigue damage on the dynamic response frequency of spot-welded joints

Shang, De-Guang / Barkey, M.E. / Wang, Yi / Lim, Teik-C.

The effect of fatigue damage on the dynamic response frequency of spot-welded joints was discussed. It was found that the propagation life of surface fatigue cracks for the spot-welded specimens is short. The results of the experimental study showed that the changes to the specimens' natural frequency varied non-linearly with the cycle ratio or damage fraction, and that relatively large changes in the natural frequency could be measured near the end of the fatigue life.

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Effect of fatigue damage on the dynamic response frequency of spot-welded joints

Shang, De-Guang / Barkey, M.E. / Wang, Yi / Lim, Teik-C.

The effect of fatigue damage on the dynamic response frequency of spot-welded joints was discussed. It was found that the propagation life of surface fatigue cracks for the spot-welded specimens is short. The results of the experimental study showed that the changes to the specimens' natural frequency varied non-linearly with the cycle ratio or damage fraction, and that relatively large changes in the natural frequency could be measured near the end of the fatigue life.

Effect of fatigue damage on the dynamic response frequency of spot-welded joints

Shang, De-Guang / Barkey, M.E. / Wang, Yi / Lim, Teik-C.

The effect of fatigue damage on the dynamic response frequency of spot-welded joints was discussed. It was found that the propagation life of surface fatigue cracks for the spot-welded specimens is short. The results of the experimental study showed that the changes to the specimens' natural frequency varied non-linearly with the cycle ratio or damage fraction, and that relatively large changes in the natural frequency could be measured near the end of the fatigue life.

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Title:

Effect of fatigue damage on the dynamic response frequency of spot-welded joints

Contributors:

Shang, De-Guang (author) / Barkey, M.E. (author) / Wang, Yi (author) / Lim, Teik-C. (author)

Published in:

International Journal of Fatigue ; 25 ; 311-316

Publication date:

2003

Size:

6 Seiten, 8 Quellen

ISSN:

DOI:

https://doi.org/10.1016/S0142-1123(02)00140-8

Type of media:

Article (Journal)

Type of material:

Print

Language:

English

Keywords:

dynamisches Verhalten , Verbindungsstelle , Punktschweißen , Resonanzfrequenz , Materialermüdung , Schweißnaht , Ermüdungsriss , Oberflächenriss , Frequenzänderung , Frequenzanalyse

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