Thermal Analysis Unit Cell

Model Description

1-3 Piezocomposite unit cell model can be used evaluate the fundamental microstructure of your design.

This example shows how to calculate the internal heating in a composite pillar due to losses in the constituent materials. The unit cell (figure 1) is fired in a pulsed mode meaning the method for calculating thermal response is slightly different to that of a continuous wave (cw) excitation. With pulsed excitation a short broadband pulse of ultrasound is transmitted, and the model is run until all significant waves have left the model or have been absorbed at the boundaries. Data is gathered over the entire simulation for loss (energy deposition)

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Figure 1. Material Model

The thermal example shows how to determine heat losses created in a piezoelectric model by splitting the mechanical and thermal simulations into two sections. The thermal example shows how to determine heat losses created in a piezoelectric model by splitting the mechanical and thermal simulations into two sections. First you model the acoustic wave interactions in the model and then you use the resulting acoustic loss data to model the thermal source in the pillar. The decoupling of the two models allows for efficient modelling, as they occur on vastly different time scales. 

Typical Outputs from Thermal Analysis

  • Temperature rise 
  • Displacement 
  • Thermal stress

Runtime Statistics

Model size

14208 elements

Solve Time

 19 s (2 CPU)

Core Hours

0.011

Memory Usage

170 MB

Recommended Cloud Node Setting

2 CPU

Files

The following input files are required to run this model, click here to download the input files:

Download: 1-3 Piezocomposite Unit Cell - Thermal Analysis

Note: Run the acoustic simulation first