【零基础学习Ansys/Ls-dyna】面对面接触

    本人新手，正在学LS-DYNA，自己也在照着书上的例子练习，但常常发生错误。在这里借用技术邻这个平台交流学习，分享自己的经验。方便别人发现错误，也及时改正我自己的错误。

    分析流程：用ANSYS Mechanical APDL Product Launcher打开ANSYS，注意在打开时选择带有LS-DYNA的license并勾选LS-DYNA模块→在GUI过滤的预前设置处勾选LS-DYNA显示分析→设置单元、实常数并建立几何模型（该粘合的地方需要粘合）→Mesh Attributes进行材料分布处理，然后划分网格→在LS-DYNA Options处创建Part，定义接触类型、时间边界条件、初始速度→设置时间控制、时间步长、能量选项和沙漏控制等→输出K文件，修改K文件，递交求解器求解→用Ls-prepost软件进行后处理，或者用Matlab进行数据处理等。

图1 ANSYS建立有限元模型

图2 Ls-prepost查看结果

图3 Ls-prepost绘制曲线

图4 将结果导入Matlab并绘制曲线

下面是部分K文件中比较重要的关键字：

*KEYWORD

*TITLE 

                

$

*DATABASE_FORMAT

      0

..........

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$

$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$

$                    SECTION DEFINITIONS                    $

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*SECTION_SHELL

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*SECTION_SHELL

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$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$

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*MAT_ELASTIC

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$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$

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$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$

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$

*PART

Part         1 for Mat        1 and Elem Type        2

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*PART

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..........

 

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*CONTACT_SURFACE_TO_SURFACE

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$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$

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*CONTROL_ENERGY

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*CONTROL_HOURGLASS

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*CONTROL_SHELL

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*CONTROL_CONTACT

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*CONTROL_TIMESTEP

    0.0000    0.5000       0      0.00      0.00    

*CONTROL_TERMINATION

 0.200E-03     0   0.00000   0.00000   0.00000

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*DATABASE_BINARY_D3PLOT

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0.2000E-06

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$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$

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..........

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plate.k