کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7154556 1462582 2018 28 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A complete list of exact solutions for one-dimensional elastic-perfectly plastic solid Riemann problem without vacuum
ترجمه فارسی عنوان
یک لیست کامل از راه حل دقیق برای حل یک مسئله جامع رامان جامع با ضخامت یک بعدی بدون خلاء
کلمات کلیدی
مشکل ریمان، جامد پلاستیکی جامد، قوانین حفاظت هیپربولیک، مکانیک جامد محاسباتی،
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی مکانیک
چکیده انگلیسی
In this work, an integral exact solution is proposed for one-dimensional elastic-perfectly plastic solid Riemann problem. Owing to the possible existence of elastic to plastic “phase” transition within the solid, the exact solution of its Riemann problem is much more complicated than that for the medium equipped with a uniform equation of state (EOS) or constitutive model. By constructing a five-equation hyperbolic governing system fully describing the nonlinear behavior of the solid in the Eulerian reference frame and scrutinizing every possible wave pattern of its Riemann problem, we acquire a complete list of exact solutions that contains as many as sixty-four different solution types neglecting the generation of vacuum. Each type of exact solutions is presented, and numerical simulations agree well with the obtained theoretical results.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Communications in Nonlinear Science and Numerical Simulation - Volume 63, October 2018, Pages 205-227
نویسندگان
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