توجه: محتویات این صفحه به صورت خودکار پردازش شده و مقاله‌های نویسندگانی با تشابه اسمی، همگی در بخش یکسان نمایش داده می‌شوند.
۱Analytical comparison between Meshfree Particle methods (MPMs) andgrid–based methods
نویسنده(ها): ، ،
اطلاعات انتشار: چهارمین همایش ملی مقاوم سازی و حفظ بناهای ماندگار، سال
تعداد صفحات: ۱۳
Numerical simulating using computers has been increasingly become a very important approach for solving problems in engineering and science. Grid or mesh based numerical m difference methods (FDM) and the finite element methods (FEM) are currently the dominate methods in numerical simulations for solving problems in engineering and science. The use of grid\mesh can lead to difficulties in dealing wi for (FDM), and extremely large deformation for (FEM). This paper focused on the development of the next generation of computational Meshfree methods. The key idea of the meshfree methods provide accurate and stable numerical solutions for integral equations. The invention, development, applications and extension of the Meshfree particle methods (MPMs) which are expected to be superior to the conventional grid grid–based FDM and FEM for ma Engineering problems, Meshfree methods, grid–based FDM and FEM for many applications are briefly discussed.<\div>

۲Analysis concrete slab subjected to missile impact using Concrete Damage Plasticity constitutive model in Abaqus\Explicit
نویسنده(ها): ،
اطلاعات انتشار: نهمین کنگره بین المللی مهندسی عمران، سال
تعداد صفحات: ۱۲
This paper describes numerical missile impact analysis on a reinforced concrete slab using the Finite Element (FE) solver ABAQUS\Explicit.The FE model of the impacted reinforced concrete slab resembles a structure used in the missile impact tests by Hanchak et al. FE analyses with a hard (rigid) and a soft (deformable) missile and sensitivity studies related to the initial missile velocity are performed. Traditional Lagrangian formulations for both the missiles andreinforced concrete slabs are used. Concrete Damaged Plasticity constitutive Model for concrete in ABAQUS\Explicit, is used and its suitability and limitations for missile impact analyses are explored. The Concrete Damaged Plasticity Model of ABAQUS\Explicit leads to reasonable and sound results in terms of strains\stresses of the reinforced concrete slab, overall energy balances and overall deformation of the concrete slab<\div>
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