| geofem |
2008-12-15 13:18 |
zsoil.pc v2009推出，有重大改进。
1. Modeling large foundation rafts in 3D
- piles are modeled as beam elements discretized independently on surrounding continuum
- Mohr-Coulomb friction law is applied
- additional pile foot interface is created to model pull-out effect
- redesigning piles is very fast
- option fully automatic working both at the macro-modeling and finite element levels
强劲的桩-筏板基础分析功能，做上部结构-地基基础共同作用的朋友关注下。
优点：pile用结构单元模拟，结构单元和结构单元之间的连接不需要共享节点。
2. Hardening Soil/Hardening Soil-small soil model for modeling deep excavations and soil-structure interaction problems
- small strain stiffness of soils is reporduced by HS-small version
- excessive heaving of the bottom of excavation is eliminated
- nice predictions of the influence of excavations on neigbouring structures in urban areas
HSS模型的优点我就不说了。
3. Parametric studies enabling variation of a selected set of material properties to be varied
- creating list of properties to be varied
- postprocessing of parametric output
参数分析。
4. Automatic inheriting of contact strength properties from adjacent continum
- inheriting standard interface strength parameters from adjacent continuum
- inheriting 3D piles interface strength parameters from adjacent continuum
自动设置接触面参数，类似于Plaxis的处理方法，非常方便。
5. Automatic mapping of complex geological layers defined through boreholes on 3D meshes
通过钻孔自动划分地层，也是借用Plaxis 3D Foundation的思路，呵呵。
6. Orthotropic elastic model for shells
壳体的各向异性弹性模型
7. Directional filtering of added masses in structural dynamics
结构动力分析
8. Wood-Armer stress resultants for plates/shells
壳和板的后处理显示，
9. First steps towards parallel computing on multi-core PC platforms
- Z_SOIL v2009 enables running larger 3D models than version v2007 (300 000 DOFS for symmetric stiffness matrices and 200 000 DOFS for nonsymmetric ones)
- Z_SOIL v2009 makes use of multicore platforms (Core Duo or Core Quad processors)
- comparizon of elapsed times for 1 step of static analysis of a box subject to the gravity load
Problem size Version Processor/System Symmetric stiffness Nonsymmetric stiffness
30x30x30 B8 elements
82 770 DOFS v2007 Intel Core Duo/Win XP 32 bit 208 s 355 s
30x30x30 B8 elements
82 770 DOFS v2009 Intel Core Duo/Win XP 32 bit 103 s 219 s
30x30x30 B8 elements
82 770 DOFS v2009 Intel Quad Core Extreme/Win XP 32 bit 77 s 156 s
40x40x40 B8 elements
195 160 DOFS v2009 Intel Quad Core Extreme/Win XP 32 bit 302 s 677 s
45x45x45 B8 elements
277 380 DOFS v2009 Intel Quad Core Extreme/Win XP 32 bit 626 s ---
支持多核的并行运算，最大30w自由度。
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