欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
针对传统光滑粒子法在计算高速碰撞问题时会出现近邻粒子逸出核函数影响域而产生数值破坏这一缺陷，提出了一种根据粒子间距变化自动添加、合并粒子的SPH自适应粒子分布算法。采用该方法对Taylor碰撞和超高速碰撞问题进行了数值模拟，结果表明，该方法可以有效地消除计算中出现的数值破坏，提高计算精度。
英文摘要：
Numerical fracture induced by neighbor particles moving out of the influencing domain of the kernel function may occur in the numerical simulation of hypervelocity impact problems by the stand- ard SPH method. A new adaptive SPH method by adding and merging particles according to the distance between particles was developed to eliminate the numerical fracture. Numerical simulations were carried out on the Taylor and hypervelocity impact samples. Simulated results display that the new adaptive SPH method can effectively eliminate the numerical fracture in the computation and remarkably improve the computational precision.
同期刊论文项目
同项目期刊论文
On the comparison of the ballistic performance of 10% zirconia toughened alumina and 95% alumina cer
Numerical study on anti-penetration process of alumina ceramic (A95) target to tungsten long rods pr
An atomistic-continuum inhomogeneous material model for the elastic bending of metal nanocantilevers
Numerical simulation of ogive-noded rod projectile penetrating concrete target by finite element met
Theoretical model for the calculation of concrete target resistance and numerical simulation of pene
Constraining and toughening effects on anti-penetration properties of alumina ceramic targets to sha
Moving boundary problem arising in explosion and impact: An algorithm for youngs' interface reconstr
A modified theoretical model of the concrete target with pre-drilled cavities penetrated by the ogiv
Molecular mechanics modelling and simulation of the adsorption-induced surface stress in micro-nano-
期刊信息
位置：