This FAQ addresses the modeling options of Advance Design for different situations where the structural elements are subjected to temperature variations:

1. The element is subjected to a uniform temperature variation obtained from the difference between the set temperature and the reference temperature (defined in the assumptions window).

2. The element is subjected to a temperature variation on the local y or/and z axes.

To highlight the differences between the two situations, we will treat each example separately.

For the first example, we define a cantilever.

How is a temperature variation load modeled

How is a temperature variation load modeled

We must first define the reference temperature of the system. We either set it when creating a new model or we can modify it during modeling from the "Assumptions - Structure..." menu.

How is a temperature variation load modeled

Next we create a load case family from the temperature variations.

1. Modeling the temperature loads by defining ΔT:

In the load's properties window we define the difference between the set temperature on elements and the reference temperature (ΔT).

How is a temperature variation load modeled

Element elongation from temperature variation is:

How is a temperature variation load modeled

2. Modeling the temperature loads by gradient defining:

The thermal gradients y and z are positive along the direction of the local y and z axes, respectively.

How is a temperature variation load modeled

Element deformation from temperature variation is:

How is a temperature variation load modeled

How is a temperature variation load modeled

Where How is a temperature variation load modeled are as shown in the following figure:

How is a temperature variation load modeled

For modeling, the user should enter the values both for the temperature and also for the gradients.

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