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Thermal expansion is an important factor to consider when performing simulations in CAD models. It helps predict how materials will behave under temperature changes, ensuring accuracy in design and analysis.
Understanding Thermal Expansion
Thermal expansion refers to the increase in size of a material as its temperature rises. It is quantified by the coefficient of thermal expansion (CTE), which varies depending on the material.
Calculating Thermal Expansion
The basic formula to calculate linear thermal expansion is:
ΔL = L0 × α × ΔT
Where:
- ΔL = change in length
- L0 = original length
- α = coefficient of thermal expansion
- ΔT = change in temperature
Applying Thermal Expansion in CAD Models
Most CAD software allows users to incorporate thermal expansion by inputting material properties and temperature variations. This enables the simulation to adjust the model dimensions accordingly.
To ensure accurate results, verify the material’s CTE and set appropriate temperature ranges. Some software also offers automatic calculations based on material data libraries.