کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8053109 1519421 2013 27 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Crack growth modeling via 3D automatic adaptive mesh refinement based on modified-SPR technique
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مکانیک محاسباتی
پیش نمایش صفحه اول مقاله
Crack growth modeling via 3D automatic adaptive mesh refinement based on modified-SPR technique
چکیده انگلیسی
In this paper, the three-dimensional automatic adaptive mesh refinement is presented in modeling the crack propagation based on the modified superconvergent patch recovery technique. The technique is developed for the mixed mode fracture analysis of different fracture specimens. The stress intensity factors are calculated at the crack tip region and the crack propagation is determined by applying a proper crack growth criterion. An automatic adaptive mesh refinement is employed on the basis of modified superconvergent patch recovery (MSPR) technique to simulate the crack growth by applying the asymptotic crack tip solution and using the collapsed quarter-point singular tetrahedral elements at the crack tip region. A-posteriori error estimator is used based on the Zienkiewicz-Zhu method to estimate the error of fracture parameters and predict the crack path pattern. Finally, the efficiency and accuracy of proposed computational algorithm is demonstrated by several numerical examples.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Mathematical Modelling - Volume 37, Issues 1–2, January 2013, Pages 357-383
نویسندگان
, , , ,