孔洞对3D打印AlSi10Mg合金拉伸性能影响的分子动力学模拟

孔洞对3D打印AlSi10Mg合金拉伸性能影响的分子动力学模拟
作者：陈传波马芳罗一平
来源：《智能计算机与应用》2020年第03期

热水泵机械密封

摘要：采用分子动力学方法模拟含孔洞的3D打印AlSi10Mg合金单轴拉伸过程，研究孔洞对晶体力学行为影响。结果表明：随着孔洞尺寸的增加，材料的弹性模量、屈服强度、峰值应变都相应下降。孔洞数量的增加，加剧了拉伸断裂进程。本研究主要从原子尺

防潮密闭门兑换券制作度分析孔洞对多元合金力学性能影响，为今后实验和研究孔洞对3D打印提供理论指导。

导布辊

关键词： AlSi10Mg合金; 单轴拉伸; 孔洞; 分子动力学模拟

mesh自组网【Abstract】 The uniaxial stretching process of 3D printed AlSi10Mg alloy with voids is simulated by molecular dynamics method， and the influence of pores on the mechanical behavior of the crystal is studied. The results show that the elastic modulus， yield strength and peak strain of the material decrease with the increase of the pore size. The increase in the number of holes exacerbates the tensile fracture process. This study mainly analyzes the influence of pores on the mechanical properties of multi-alloys at the atomic scale， and provides theoretical guidance for future experiments and research on holes for 3D printing.

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