Learning Forum

[lhr5701119185]

我正在学习使用 ANSYS 进行赫兹接触的有限元计算。在实验中，我使用纳米探针对薄膜施加压力，希望计算样品中的应变和应变梯度。但是，当我设置计算参数时，软件报告了一个错误。我为我的计算提供了一些特定的参数详细信息。希望大家能帮我找到计算错误的原因。谢谢！

[lhr5701119185]

I am learning to use ANSYS for finite element calculations of Hertz contact. In the experiment, I used a nano probe to apply pressure to a thin film, hoping to calculate the strain and strain gradient in the sample. However, when I was setting the parameters for calculation, the software reported an error. I have provided some specific parameter details for my calculation. I hope everyone can help me find the reason for the calculation error. Thank you!

[Armin]

Hello, 

I have a few suggestions:

• Try controlling the indenter using a displacement boundary condition instead of force (I provided a screenshot below).
• Use a sufficiently fine mesh to ensure proper contact detection. If necessary, adjust the pinball radius, which can be accessed from the details window under the 'Advanced' branch of the contact.
• Consider the following free Ansys courses to learn more: 
  Connecting Parts Together | Ansys Courses
  Rigid Body Motion in Contact | Ansys Innovation Courses