Modeling of Piezoelectric with using Abaqus

[shabgard66]

Hi,
I am a beginner user in the Abaqus software.
I am trying to model the load on a piezoelectric to find the output voltage (EPOT). The model consists of the a load on the top surface of piezoelectric, the piezoelectric, and fixed condition in the bottom in the direction of Z. The problem is that the output voltage is extremely less than the experimental results. The abaqus gives me the range of 6E-9 V for the output voltage, however I was able to get 100 V as output voltage in the lab.
Any advise would be greatly appreciated.

 

[Achy47]

Hello,

First of all, congratulations on using Abaqus for your modeling! It is a powerful software that can provide accurate results when used correctly.

Regarding your issue with the output voltage, there could be several reasons for the discrepancy between your experimental results and the Abaqus results. Some possible factors to consider are:

1. Material properties: It is important to ensure that the material properties used in your model are accurate and representative of the actual material. Any discrepancies in material properties can greatly affect the results.

2. Boundary conditions: The boundary conditions you have applied in your model can also have a significant impact on the results. Make sure that the boundary conditions are accurately represented in your model and are consistent with your experimental setup.

3. Mesh density: The mesh density can greatly affect the accuracy of your results. Make sure that your model has a sufficiently fine mesh to capture all the important details and features.

4. Convergence: It is important to check for convergence in your results. If your model is not converging, it could be a sign of numerical instability or incorrect modeling techniques.

I would suggest going through these factors and checking if any of them could be the reason for the discrepancy in results. Additionally, it might be helpful to consult with experienced users or experts in the field to get their insights on your model setup and results.

I hope this helps and wish you all the best with your modeling. Don't hesitate to reach out for further assistance.