کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4964037 1447423 2016 22 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Fourth order phase-field model for local max-ent approximants applied to crack propagation
ترجمه فارسی عنوان
مدل میدان فاز نظم چهارم برای تقریبهای حداکثر محلی استفاده شده برای انتشار ترک
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر نرم افزارهای علوم کامپیوتر
چکیده انگلیسی
We apply a fourth order phase-field model for fracture based on local maximum entropy (LME) approximants. The higher order continuity of the meshfree LME approximants allows to directly solve the fourth order phase-field equations without splitting the fourth order differential equation into two second order differential equations. We will first show that the crack surface can be captured more accurately in the fourth order model. Furthermore, less nodes are needed for the fourth order model to resolve the crack path. Finally, we demonstrate the performance of the proposed meshfree fourth order phase-field formulation for 5 representative numerical examples. Computational results will be compared to analytical solutions within linear elastic fracture mechanics and experimental data for three-dimensional crack propagation.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computer Methods in Applied Mechanics and Engineering - Volume 312, 1 December 2016, Pages 254-275
نویسندگان
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