Numerical simulation and comparison of a real Al–Si alloy with virtually generated alloys
Numerical simulation and comparison of a real Al–Si alloy with virtually generated alloys
复制标题
真实 AlâSi 合金与虚拟生成合金的数值模拟和比较
DOI：
10.1007/s00419-014-0956-5
复制
发表时间：
2015
影响因子：
2.8
通讯作者：
Diebels
中科院分区：
文献类型：
--
作者：
Roland;Kruglova;Gaiselmann;Brereton;Schmidt;Mücklich;Diebels
采用数值模拟的方法估算了一种真实的锶变质铝硅合金的应力-应变曲线，并与虚拟设计材料的力学性能进行了分析比较。虚拟材料是由Al-Si合金中共晶Si的三维珊瑚状形貌的竞争随机生长模型生成的。真实的材料的实验数据是使用FEB/SEM层析成像获得的。数值模拟是基于有限元方法。讨论了网格粗化和采用不同阶次有限元的影响。仿真结果表明，真实的材料与虚拟材料的力学性能具有很高的一致性。还进行了实验，以表明的随机模型的实现的机械行为是敏感的控制Si组件的形态特征的参数的变化。
Mechanical stress–strain curves are estimated by means of numerical simulation in order to analyze and compare the mechanical properties of a real strontium-modified Al–Si alloy with virtually designed materials. The virtual materials are generated by a competitive stochastic growth model of the 3D coral-like morphology of the eutectic Si in Al–Si alloys. The experimental data for the real material were acquired using FEB/SEM tomography. The numerical simulations are based on finite element methods. The effects of coarsening the mesh size and using different degrees of the finite elements are discussed. The simulations show that there is high conformity between the mechanical properties of the real and virtual materials. Experiments are also performed to show that the mechanical behavior of the realizations of the stochastic model is sensitive to changes in the parameters that control the morphological characteristics of the Si component.
DOI：
10.1007/978-3-322-93899-2
发表时间：
1999
期刊：
--
影响因子：
--
作者：
A. Meister
通讯作者：
A. Meister
有和没有定向凝固的铝硅合金的数值模拟
影响因子：
0.9
作者：
Roland;Kruglova;Harste;Mücklich;Diebels
通讯作者：
Diebels