کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
300202 512473 2014 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Fracture mechanics approach for failure of adhesive joints in wind turbine blades
ترجمه فارسی عنوان
روش مکانیک شکست برای شکست اتصالات چسبنده در تیغه های توربین باد
کلمات کلیدی
مکانیک شکستگی، اتصالات چسبنده، تیغه توربین بادی، تجزیه و تحلیل عنصر محدود، مدل منطقه ای منسجم
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی انرژی های تجدید پذیر، توسعه پایدار و محیط زیست
چکیده انگلیسی


• Cohesive zone model approach can be used to predict blade joint failure.
• Shear stress is mainly responsible for blade skin–web joint failure.
• Blade joint debonding initiated prior to reaching the extreme design loading.
• Debonding propagated progressively with load increase.

Composite components of wind turbine blade are assembled with adhesive. In order to assess structural integrity of blades it is needed to investigate fracture of joints. In this study, finite element analysis based on fracture mechanics was conducted to characterize failure of adhesive joint for wind turbine blade. The cohesive zone model as proposed fracture mechanics approach was verified through the comparison of numerical results with experimental data. Finite element models of wind turbine were developed to predict damage initiation and propagation. Numerical results based on fracture mechanics showed that failure was initiated in the edge of the adhesive bond line due to high level of shear stress prior to reaching the extreme design loading and propagated progressively.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Renewable Energy - Volume 65, May 2014, Pages 23–28
نویسندگان
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