کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7227887 | 1470622 | 2017 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
An improved contact algorithm for multi-material Arbitrary Lagranian-Eulerian hydrocodes in three-dimensions
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: An improved contact algorithm for multi-material Arbitrary Lagranian-Eulerian hydrocodes in three-dimensions An improved contact algorithm for multi-material Arbitrary Lagranian-Eulerian hydrocodes in three-dimensions](/preview/png/7227887.png)
چکیده انگلیسی
Multi-material Eulerian formulations in computational structural mechanics are traditionally approached using mixed-element thermodynamic or constitutive models. These traditional approaches replace contacting materials in an element with an approximated single material. However, this approximation often has little basis in the actual physics taking place at the contacting boundary and can easily lead to unphysical behavior due to bonding that takes place along the interface boundary. This work presents a significant departure from traditional Eulerian treatment of contact by adding a separate velocity field and solving the conservation equations separately for each material and then imposing inequality constraints associated with contact to the solutions with the appropriate traction integrals included. This results in natural treatment of contacting surfaces in an Eulerian framework and eliminates the need for mixture theory. The advantages of this method will be demonstrated with several computational examples.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Procedia Engineering - Volume 204, 2017, Pages 67-74
Journal: Procedia Engineering - Volume 204, 2017, Pages 67-74
نویسندگان
Kenneth C. Walls, David L. Littlefield,