INVESTIGATION OF THE FATIGUE PROPERTY OF THE EPOXY STRUCTURE ADHESIVE USED FOR WIND POWER BLADE

COMPOSITES SCIENCE AND ENGINEERING ›› 2014, Vol. 0 ›› Issue (4): 62-64.

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INVESTIGATION OF THE FATIGUE PROPERTY OF THE EPOXY STRUCTURE ADHESIVE USED FOR WIND POWER BLADE

PENG Xing-cai¹, ZHANG Li-ping¹, XIE Xiang-fu², ZHANG Li-li²

1. Beijing FRP Research and Design Institute Co., Ltd., Beijing 102101, China;
2. Nanjing Hitech Composites Co.,Ltd., Nanjing 210012, China

Received:2013-10-09 Published:2021-09-17

Abstract

Abstract: This study give out the fatigue property of the epoxy structure adhesive used for wind power blade. According to ISO 9664:1995, the tensile shear fatigue character was tested periodicity vibration with the parameter of 30Hz frequency, τ_m=0.35τ_R mean stress, 2.0≤τ_a≤3.0 stress amplitude. The fatigue stress limit was calculated from the S-N curves obtained in the above test. In addition, we still studied thickness of the adhesive layer, proportion of flexibilizer, broken pattern of sample and other factors that would affect the fatigue property. The result shows that the fatigue property of the epoxy adhesive is very important to wind power blade's design performance and service life.

Key words: epoxy structure adhesive, fatigue testing, fatigue limit, S-N curve, factors fatigue testing

CLC Number:

TB332

PENG Xing-cai, ZHANG Li-ping, XIE Xiang-fu, ZHANG Li-li. INVESTIGATION OF THE FATIGUE PROPERTY OF THE EPOXY STRUCTURE ADHESIVE USED FOR WIND POWER BLADE[J]. COMPOSITES SCIENCE AND ENGINEERING, 2014, 0(4): 62-64.

References

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INVESTIGATION OF THE FATIGUE PROPERTY OF THE EPOXY STRUCTURE ADHESIVE USED FOR WIND POWER BLADE

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