کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8960218 | 1646390 | 2018 | 17 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Extended finite element modeling of 3D dynamic crack growth under impact loading
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی کامپیوتر
نرم افزارهای علوم کامپیوتر
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Extended finite element modeling of 3D dynamic crack growth under impact loading Extended finite element modeling of 3D dynamic crack growth under impact loading](/preview/png/8960218.png)
چکیده انگلیسی
This paper is devoted to the numerical simulation of the dynamic propagation of non-planar 3D cracks under transient loadings. For that purpose, in an explicit finite element code, the X-FEM with only discontinuous enrichment is used coupled with level sets to represent the crack geometry. We show on a complex example that the commonly used Hamilton-Jacobi based level set updating algorithm lacks robustness and numerical efficiency to model such types of problems. To circumvent this, we introduce a simple geometric updating algorithm that does not involve any equation solving, and is therefore numerically cheap. The robustness of this updating algorithm is demonstrated on several virtual propagation examples. Finally common benchmark used in the literature as well as a complex experiment involving the dynamic propagation of a non-planar 3D crack under impact loading are used to demonstrate the efficiency of the approach.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Finite Elements in Analysis and Design - Volume 151, 15 October 2018, Pages 1-17
Journal: Finite Elements in Analysis and Design - Volume 151, 15 October 2018, Pages 1-17
نویسندگان
Thomas Elguedj, Romains Pelée de Saint Maurice, Alain Combescure, Vincent Faucher, Benoit Prabel,