التفاصيل البيبلوغرافية
العنوان: |
48 - Structural Health Monitoring of composites structures by Acoustic Emission analysis. |
المؤلفون: |
Schubert, Lars, Schulze, Eberhard, Neubeck, Robert, Weihnacht, Bianca |
المصدر: |
Journal of Acoustic Emission; 2018, Vol. 35, pS164-S171, 8p |
مصطلحات موضوعية: |
COMPOSITE structures, STRUCTURAL health monitoring, ACOUSTIC emission, FIBROUS composites, COMPRESSOR blades, WIND turbines |
مستخلص: |
Fiber reinforced composites are often used in actual light weight structures applications like structural components for automotive or rotor blades for wind turbine power applications. The reliability of those components are of great importance for safety relevant areas. The lifetime of the components are affected by damages like fibre cracking or delaminations which can lead to early failure of the overall structure. The acoustic emission testing is well accepted for static or dynamic testing of fiber composite components since fiber breaks and delamination processes cause high energetic acoustic emissions. The challenge lies in the application of the method during field measurement tests like filtering any indications caused by the noisy environment and the development of special condition monitoring hardware which allows the instrumentation of rotating wind turbines. Damage evaluation parameters like the weighted peak frequency were evaluated during tensile lab test and full-scale fatique tests and subsequently transferred to real operation of wind turbines. Results from field operation of several systems on wind turbine power blades will be presented and discussed. [ABSTRACT FROM AUTHOR] |
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قاعدة البيانات: |
Complementary Index |