Validation of CRACK3D

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Validation of CRACK3D

     Due to limited capabilities of commercially available software in predicting crack propagation, fracture path and maximum load-carrying capacity of structures with flaws, experimental results have been used for validation of CRACK3D.  The comparisons have been made between numerical results predicted by CRACK3D and experimental results measured by using Digital Image Correlation (DIC) system under different loading conditions (Sutton, et al, 1997, 2001).

 

Experiments of Mixed Mode I/II Loading
(Sutton, Zhao, Boone, Reynolds and Dawicke, International Journal of Fracture, 83, 1997)

Arcan fixture

Arcan test specimen

Fractured Arcan-specimen with speckle pattern

Measured crack path under different loading angles

 

Predicted Results of Mixed Mode I/II Loading using CRACK3D
(Zuo, Deng and Sutton, Proceedings of ASME International Mechanical Engineering Congress, 2004)

Loading
Angle
          Load versus Crack Extension Comparison of Crack Path
Φ=0
Φ=30

 

Φ=45

 

Φ=75

 

Φ=90

 

 

Experiments of Mixed Mode I/III Loading
(Sutton, Helm and Boone, International Journal of Fracture, 109, 2001)


All dimensions in mm
 

Tension-torsion test

Measured crack surface
 

Profile of crack tunneling
 

 

Predicted Results of Mixed Mode I/III Loading by CRACK3D
(Zuo, Deng, Sutton and Cheng, Proceedings of ASME International Mechanical Engineering Congress, 2004)

 

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