کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
278795 1430307 2010 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Enriched kinematic fields of cracked structures
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی عمران و سازه
پیش نمایش صفحه اول مقاله
Enriched kinematic fields of cracked structures
چکیده انگلیسی

Far from the crack tip process zone where non-linear phenomena take place, the mechanical behavior of a cracked medium can be analyzed within the framework of elasticity. Apart from the classical singular stress field associated with the elastic behavior, the effect of a confined process zone is decomposed over a set of (super-singular) fields. Because these fields are indexed by the exponent of their decay with distance from the crack tip, the dominant effect of non-linear mechanisms is characterized by the amplitudes of the first super-singular fields (modes I and II). This approach provides a macroscopic characterization of crack tip non-linearities and describes accurately the displacement field. As an application, the cyclic loading of a cracked elasto-plastic medium is discussed.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Solids and Structures - Volume 47, Issue 24, 1 December 2010, Pages 3305–3316
نویسندگان
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