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基于近场动力学的复杂界面双材料结构研究

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为了将近场动力学方法应用于复杂界面的双材料结构,以锯齿形界面为例,基于PD"串联"键理论开发复杂界面双材料结构PD求解程序,通过单、双材料平板进行拉伸仿真分析,利用FEM解验证PD方法及程序的准确性.结果表明:PD方法在准静态模拟中具有较高的准确性.PD程序所得位移结果:在y=0.005 m处,x位移相对误差低于 5%;在x=0m处,y位移平均相对误差低于 6.08%.程序所得位移结果在小模量比、小载荷下更准确.
Study on Bimaterial Structure with Complex Interface Based on Peridynamic
In order to apply the near field dynamics method to the bimaterial structure with complex interface,this paper,taking the serrated interface as an example,develops a PD solution program for the bimaterial structure with complex interface based on the PD'series'bond theory,and verifies the accuracy of the PD method and program through the tensile simulation of single and bimaterial plates and by using the FEM solution.The results show that PD method has high accuracy in quasi-static simulation.The displacement results obtained by PD program indicate that the relative error of x displacement is less than 5%at y=0.005 m,the average relative error of y displacement is lower than 6.08%at x=0 m,and the displacement results obtained by the program are more accurate under small modulus ratio and small load.

peridynamicFEMbimaterial"series"bond theoryinterface shape

石玥、张林、黄钰棋

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中北大学 航空宇航学院,山西 太原 030051

近场动力学 有限元 双材料 "串联"键理论 界面形状

2024

机械制造与自动化
南京机械工程学会 南京机电产业(集团)有限公司

机械制造与自动化

CSTPCD
影响因子:0.29
ISSN:1671-5276
年,卷(期):2024.53(5)
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