Abstract
In this study, tensile tests have been carried out to investigate interlaminar shear properties of the delaminated composite materials for wind turbine blades. Acoustic emission (AE) technique was used to monitor the damage and failure progress of the specimens and the shear failure mechanisms of the delaminated composites have been discussed. The results show that the size of strip delamination has little effect on the failure load of the composite specimens when these defects are located at the center of interlaminar shear region. The main damage evolution approaches the extremities of the shear plane. The AE relative energy, amplitude distribution, and duration were connected with the damage process of the specimens. Finally, the initiation and propagation of damage has been proved by linear AE source location results.
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Acknowledgment
This work was supported by the Natural Science Foundation of Hebei Province, P. R. China (under grant no. E2012201084) and National University Students’ innovative training program (under grant no. 201310075013).
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Zhou, W., Li, Y., Li, Z., Liang, X., Pang, Y., Wang, F. (2015). Interlaminar Shear Properties and Acoustic Emission Monitoring of the Delaminated Composites for Wind Turbine Blades. In: Shen, G., Wu, Z., Zhang, J. (eds) Advances in Acoustic Emission Technology. Springer Proceedings in Physics, vol 158. Springer, New York, NY. https://doi.org/10.1007/978-1-4939-1239-1_52
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DOI: https://doi.org/10.1007/978-1-4939-1239-1_52
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