Modeling Crack Growth in Thin Sheet Aluminum Alloys

2008 ◽  
pp. 475-475-11 ◽  
Author(s):  
T Siegmund ◽  
W Brocks
Keyword(s):  
Aluminum Alloys ◽  
Crack Growth ◽  
Thin Sheet ◽  
Sheet Aluminum

Kc and R-Curve test for four thin sheet aluminum alloys

1982 ◽  
Vol 16 (1) ◽  
pp. 132-133
Author(s):  
Shen Wu ◽  
Weiyang Huang
Keyword(s):  
Aluminum Alloys ◽  
Thin Sheet ◽  
Sheet Aluminum

scholarly journals Small Fatigue Crack Growth Mechanisms and Interfacial Stability in Cold-Spray 6061 Aluminum Alloys and Coatings

2018 ◽  
Vol 49 (12) ◽  
pp. 6509-6520 ◽  
Author(s):  
Anastasios G. Gavras ◽  
Diana A. Lados ◽  
Victor K. Champagne ◽  
Robert J. Warren ◽  
Dileep Singh
Keyword(s):  
Fatigue Crack ◽  
Aluminum Alloys ◽  
Fatigue Crack Growth ◽  
Crack Growth ◽  
Cold Spray ◽  
Interfacial Stability ◽  
Growth Mechanisms ◽  
Small Fatigue Crack

Modeling of Crack Growth in Thin Sheet Aluminum

1999 ◽  
Author(s):  
T. Siegmund ◽  
W. Brocks ◽  
J. Heerens ◽  
G. Tempus ◽  
W. Zink
Keyword(s):  
Crack Growth ◽  
Cohesive Energy ◽  
Cohesive Zone Model ◽  
Plastic Material ◽  
Thin Sheet ◽  
High Strength ◽  
Cohesive Strength ◽  
Zone Model ◽  
Additional Material ◽  
Center Crack

Abstract The present study reports on the application of a cohesive zone model to the analyses of crack growth in thin sheet specimen of a high strength aluminum alloy. In addition to the elastic-plastic material properties, the two parameters cohesive strength and cohesive energy describe material separation. For the sheet specimen under investigation the cohesive energy is determined via a numerical-experimental approach using tests on notched tensile specimens as well as a damage indicator. The cohesive energy is found to be close to the corresponding value of plane strain fracture toughness. The cohesive strength is approximately twice the yield strength. With these two additional material parameters being determined crack growth experiments in center crack panels are analyzed. Good agreement with experimental records is found. Finally the applicability of the model to study complex crack configurations as in multi-site damaged specimens is demonstrated.

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