Calculation of Fire Resistance
A second simulation focuse is the calculation of the fire resistance, as fire tests are very complex and expensive. Some of the tests for the detection of fire resistance in the customer's country and must not be carried out in the country.
The effect of the frequently used fire protection materials (materials 1, 2 and 3 in Figure 2) is based on one or more phase transformations in the material, which require large amounts of heat energy. Consequently, the phase transformation processes must be described in the modeling and simulation.
The results of the simulation of a fire test, which is standardized, are shown in Fig. 3. The maximum temperature shown on the diagram on the side facing the fire is significantly lower in the optimized variant over the entire period than in the conventional profile. This example also demonstrates the great potential for optimization, which has been exhausted by the simulation of a variety of variants.
Evaluation Burglar Security and Wind Load
The results of standard FEM simulations for stress analysis were used to assess the bulgar security and wind load.The burglary resistance is examined by means of local pressure loads on different points of the door surface.
This makes it possible to optimize the materials as well as the wall thicknesses, whereby it must be taken into account that lighter doors are advantageous both during assembly and as regards opening and closing functions.