کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
254288 503058 2006 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Structural testing and numerical simulation of a 34 m composite wind turbine blade
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی عمران و سازه
پیش نمایش صفحه اول مقاله
Structural testing and numerical simulation of a 34 m composite wind turbine blade
چکیده انگلیسی

A full-scale 34 m composite wind turbine blade was tested to failure under flap-wise loading. Local displacement measurement equipment was developed and displacements were recorded throughout the loading history.Ovalization of the load carrying box girder was measured in the full-scale test and simulated in non-linear FE-calculations. The non-linear Brazier effect is characterized by a crushing pressure which causes the ovalization. To capture this effect, non-linear FE-analyses at different scales were employed. A global non-linear FE-model of the entire blade was prepared and the boundaries to a more detailed sub-model were extracted. The FE-model was calibrated based on full-scale test measurements.Local displacement measurements helped identify the location of failure initiation which lead to catastrophic failure. Comparisons between measurements and FE-simulations showed that delamination of the outer skin was the initial failure mechanism followed by delamination buckling which then led to collapse.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Composite Structures - Volume 76, Issues 1–2, October 2006, Pages 52–61
نویسندگان
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