کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4965965 1448680 2017 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
High regularity partition of unity for structural physically non-linear analysis
ترجمه فارسی عنوان
تقسیم بندی منظم از وحدت برای تجزیه و تحلیل غیر خطی جسمی ساختاری
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر نرم افزارهای علوم کامپیوتر
چکیده انگلیسی
Meshfree techniques, such as hp-Clouds and Element Free Galerkin Methods, have been used as attractive alternatives to finite element method, due to the flexibility in constructing conforming approximations. These approximations can present high regularity, improving the description of the state variables used in physically non-linear problems. On the other hand, some drawbacks can be highlighted, as the lack of the Kronecker-delta property and numerical integration problems. These drawbacks can be overcome by using a Ck, k arbitrarily large, partition of unity (PoU) function, built over a finite element mesh, but with the approximate characteristic of the meshfree methods. Here, this procedure is for the first time investigated to simulate the non-linear behavior of structures with quasi-brittle materials. The smeared crack model is adopted and numerical results, obtained with different kinds of polynomial enrichments, are compared with the experimental results.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Engineering Analysis with Boundary Elements - Volume 83, October 2017, Pages 43-54
نویسندگان
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