کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
786182 1465093 2006 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The virtual fields method with piecewise virtual fields
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی مکانیک
پیش نمایش صفحه اول مقاله
The virtual fields method with piecewise virtual fields
چکیده انگلیسی

This paper deals with the identification of constitutive parameters of materials from whole-field strain data. The inverse identification procedure used is the virtual fields method. It is based on the principle of virtual work written with particular virtual fields. A keypoint of the method is the determination of the virtual fields since they directly extract the unknown parameters from the measured fields. The main improvement of the present paper is to show the feasibility of piecewise virtual fields. These piecewise virtual fields are defined by virtual nodal displacements. The headlines of the virtual fields method are recalled in the first part of the paper. The procedure leading to the definition of piecewise virtual fields is then described. Numerical simulations finally illustrate the relevance of the approach and its sensitivity to noisy data.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Mechanical Sciences - Volume 48, Issue 3, March 2006, Pages 256–264
نویسندگان
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