کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
793883 1467141 2009 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Crack driving force and energy-momentum tensor in electroelastodynamic fracture
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی مکانیک
پیش نمایش صفحه اول مقاله
Crack driving force and energy-momentum tensor in electroelastodynamic fracture
چکیده انگلیسی

The energy flux integral and the energy-momentum tensor for studying the crack driving force in electroelastodynamic fracture are formulated within the framework of the nonlinear theory of coupled electric, thermal and mechanical fields based on fundamental principles of thermodynamics. This formulation lays a foundation for in-depth understanding of the fracture behavior of piezoelectric materials. Remarkably, the dynamic energy release rate thus obtained has an odd dependence on the electric displacement intensity factor for steady-state propagation of a conventional (unelectroded) crack with exact, electrically permeable, semi-permeable, or impermeable crack surface condition, which is in agreement with experimental evidence.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of the Mechanics and Physics of Solids - Volume 57, Issue 1, January 2009, Pages 1–9
نویسندگان
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