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首页> 外文期刊>Applied Surface Science >Some aspects on 3D numerical modeling of high velocity impact of particles in cold spraying by explicit finite element analysis
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Some aspects on 3D numerical modeling of high velocity impact of particles in cold spraying by explicit finite element analysis

机译：通过显式有限元分析对冷喷涂中颗粒高速撞击的3D数值建模的某些方面

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摘要

Three-dimensional modeling of particle impacting behavior in cold spraying by using ABAQUS/Explicit was conducted for copper and other materials. Various combinations of calculation settings concerning material damage, Arbitrary Lagrangian Eulerian adaptive meshing, distortion control and contact interaction were examined. The effects of meshing size and particle size on the impact behavior were analyzed compared to the previous results. The results show that the simulations with material damage cope well with the element excessive distortion and the resultant output is more reasonable than that obtained without material damage. In addition, the meshing size has less effect on the output with the material damage than without material damage. Although particle size has little effect on the morphologies of the deformed particles, it has some effect on the failure of elements at contact interfaces. The critical velocity for particle deposition could be estimated given the appropriate material properties.
机译：针对铜等材料，使用ABAQUS / Explicit对冷喷涂中的颗粒冲击行为进行了三维建模。检查了有关材料损伤，任意拉格朗日欧拉自适应网格，变形控制和接触相互作用的各种计算设置组合。与以前的结果相比，分析了筛目尺寸和粒度对冲击行为的影响。结果表明，具有材料破坏的仿真可以很好地应对单元的过度变形，并且所产生的输出比没有材料破坏的仿真更为合理。此外，在没有材料损坏的情况下，啮合尺寸对输出的影响较小。尽管粒度对变形颗粒的形貌影响很小，但对接触界面上的元素破坏却有一定影响。给定适当的材料特性，可以估算出颗粒沉积的临界速度。

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