Improved Smoothed Particle Hydrodynamics for the Three-Dimensional Solid Impact Problems

Lu Wang, Fei Xu, Yang Yang

科研成果: 期刊稿件文章同行评审

1 引用 (Scopus)

摘要

Total Lagrangian-Smoothed Particle Hydrodynamics (TL-SPH) method is an important method to improve the tensile instability of traditional SPH, but it still faces some defects, such as insufficient accuracy at boundary region, difficulty in obtaining damage and applying interface conditions. Therefore, the high-order TL-SPH is applied for the elastic–plastic solid. A damage model is proposed by adaptively transforming the type of kernel function. Furthermore, a Riemann contact algorithm is introduced for different solids. The advantages of the methods in improving tensile instability and simulating damage are verified by the cases of the plates and the notched beams with an impact load.

源语言英语
文章编号2450010
期刊International Journal of Computational Methods
21
6
DOI
出版状态已出版 - 1 8月 2024

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