کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
511541 865866 2006 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
An intrinsic Lagrangian statement of constitutive laws in large strain
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر نرم افزارهای علوم کامپیوتر
پیش نمایش صفحه اول مقاله
An intrinsic Lagrangian statement of constitutive laws in large strain
چکیده انگلیسی

A fundamental Lagrangian local strain variable for continuous media undergoing large strains, consistent with the classical Eulerian strain rate, is proposed, based on a rigorous definition of Eulerian tensors. This variable, named metric variable, is not a tensor and its domain of variation is a curved manifold. With these premises, we build an intrinsic Lagrangian framework for the statement of constitutive laws, which casts a new, unifying light on geometric aspects of large-strain theory. This approach is always completely consistent with the Eulerian approach. In the obtained new theoretical framework, the relation between this new theory and various classical approaches is studied. We examine the case of the new logarithmic rate.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computers & Structures - Volume 84, Issues 17–18, June 2006, Pages 1125–1133
نویسندگان
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