کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6711060 503337 2013 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A dynamic large deformation finite element method based on mesh regeneration
ترجمه فارسی عنوان
یک روش عنصر محدودی تغییر شکل پویا بر اساس بازسازی مش
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر نرم افزارهای علوم کامپیوتر
چکیده انگلیسی
In this paper, a large deformation finite element (LDFE) approach termed 'remeshing and interpolation technique with small strain (RITSS)' is extended from static to dynamic soil-structure interaction applications. In addition, a technique termed 'element addition' is developed to improve the computational efficiency of both static and dynamic LDFE analyses that involve moving boundaries. The RITSS approach is based on frequent mesh generation to avoid element distortion. In dynamic RITSS, the field variables mapped from the old to the new mesh involve not only the stresses and material properties, but also the nodal velocities and accelerations. Using the element addition technique, new soil elements are attached to the domain boundaries periodically when the soil near the boundaries becomes affected by large displacements of the structure. The procedures of this Abaqus-based dynamic LDFE analysis and element addition technique are detailed, and the robustness of the techniques is validated and assessed through three example analyses: penetration of a flat footing into a half-space and movement of rigid and deformable landslides down slopes.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computers and Geotechnics - Volume 54, October 2013, Pages 192-201
نویسندگان
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