کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
251153 502921 2015 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effects of geometric non-linearity on energy release rates in a realistic wind turbine blade cross section
ترجمه فارسی عنوان
اثرات غیر خطی هندسی بر روی نرخ آزاد شدن انرژی در یک تیوب واقعی توربین
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی عمران و سازه
چکیده انگلیسی

Most wind turbine rotor blades comprise several adhesively connected sub-components typically made from glass fibre reinforced polymer composite materials. It is a well-known fact that wind turbine blades are prone to fail in their adhesive joints. However, owing to the complexity of their structural behaviour, little is known about the root causes of adhesive joint failure. This paper investigates the effects of geometrical non-linearity on energy release rates (ERRs) of transversely oriented cracks present in the adhesive joints of a wind turbine rotor blade. Utilising a computationally efficient numerical slice modelling approach, the Virtual Crack Closure Technique (VCCT) is used to compute Mode-I and Mode-II ERRs induced by bi-axial bending. Generic critical loading directions are identified; these may have far-reaching consequences for blade design, analysis and testing.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Composite Structures - Volume 132, 15 November 2015, Pages 1075–1084
نویسندگان
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