The Finite Element Simulation of Crack Growth of a Wind Turbine Blade

Chang Zheng Chen; Yu Zhang; Bo Zhou; Shi Wei Zhang

doi:10.4028/www.scientific.net/AMR.591-593.2028

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 591-593The Finite Element Simulation of Crack Growth of a...

The Finite Element Simulation of Crack Growth of a Wind Turbine Blade

Abstract:

The relationship between stress and crack growth was studied. Applying the software ANSYS, the method of calculating stress intensity factor of composite mode cracks was built. At the same time, the stress intensity factor of mode I crack was calculated and the influence of crack size and loading on the stress intensity factor was studied. The results show that the results of ANSYS are almost the same to analytic results, which proves that the method is feasible. When the crack is quite big or quite small, the result of ANSYS’ error is comparatively obvious, which is due to the problem of the refinement of meshing. When the crack is too big, the dense of meshing is inadequate.

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Periodical:

Advanced Materials Research (Volumes 591-593)

Pages:

2028-2031

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.591-593.2028

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Online since:

November 2012

Authors:

Chang Zheng Chen, Yu Zhang, Bo Zhou, Shi Wei Zhang

Keywords:

Crack Growth, Crack Tip, Mode I Crack, Stress Intensity Factor (SIF)

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