کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
292359 509835 2006 22 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A reciprocal band-limited Green's function approach for modelling acoustic emission using the finite element method
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی عمران و سازه
پیش نمایش صفحه اول مقاله
A reciprocal band-limited Green's function approach for modelling acoustic emission using the finite element method
چکیده انگلیسی

The ability to model acoustic emission (AE) plays an important role in advancing the reliability of AE source characterisation. In this paper, an efficient numerical approach is proposed for modelling AE waves in isotropic solids. The approach is based on evaluating the reciprocal band-limited Green's functions using the finite element (FE) method. In the first section, known analytical solutions of the Green's function for an elastic isotropic infinite plate subjected to point monopole surface loading are used to validate the approach. Then, a study investigating the effects of the spatial resolution of the FE model on the accuracy of the numerical solutions is presented. Furthermore, comparisons between numerical calculations and experimental measurements are presented for a glass plate subjected to two known AE sources (pencil lead break and ball impact). Finally, the reciprocal relation between the source and the receiver is confirmed using numerical simulations of a plane stress model of an elastic isotropic plate.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Sound and Vibration - Volume 292, Issues 3–5, 9 May 2006, Pages 802–823
نویسندگان
, , ,