کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
9640409 509775 2005 14 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Wheat stem moduli in vivo via reference basis model updating
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی عمران و سازه
پیش نمایش صفحه اول مقاله
Wheat stem moduli in vivo via reference basis model updating
چکیده انگلیسی
A novel structural analysis method was developed and used to infer the in vivo material properties of an important crop species. In particular, reference basis model updating was used to reconcile the predictions of an idealized analytical model with the observed forced vibration response of living wheat, and thereby determine the effective longitudinal moduli of the tissues comprising the vibrating structure. The ensuing study of two varieties of wheat found that the stem tissue moduli decreased nonlinearly with height. These findings were in good qualitative agreement with the limited data available in the literature, and the updating procedure was highly effective in this unusual nondestructive testing application. To our knowledge, this is the first time that the reference basis method has been used to infer the spatially varying material properties of a living plant. Moreover, similar approaches could be used to characterize spatial variations in the material properties of other lightweight composite structures of arbitrary geometry.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Sound and Vibration - Volume 285, Issues 4–5, 6 August 2005, Pages 1109-1122
نویسندگان
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