We are proud to present our new product: Cross Section Analyzer. This one and only tool gives you the possibility to automatically analyze hundreds of cross sectional design concepts in seconds. Create your own analytical project examining various materials, thicknesses and geometries. During the automatic analysis procedure the software will generate and calculate numerous design concepts based on your assumptions. Detailed and accurate results report, which you receive in an eye blink, enables you to easily filter cross sections in the search for an optimal design. This fast and intuitive analyzer perfectly fits any pre-design or optimization routine speeding up the otherwise time and work-consuming tasks.
CRASH CALCULATIONS IN SECONDS? – IT’S POSSIBLE!
Constantly growing crash safety requirements enforce implementation of various strategies in vehicle body design.
Test procedures involve laboratory experiments as well as numerical simulations.
Process of structure development is time and cost consuming, therefore more effective procedures are sought.
Possibility of studying the influence of various parameters on crushing response is a tempting perspective.
The Macro Element Method (MEM) fits in optimization purposes perfectly and can be treated as a complementation to the finite element methods. Macro element approach is especially useful in the field of large deformations of thin walled members made of variety of ductile isotropic materials. Implementation of MEM gives the highest efficiency at the early stages of vehicle development.
Macro Element Method is based on simplified modeling. The concept of Super Folding Element at the cross sectional level and Super Beam Element in case of a 3D structure, enable creation of simplified models of variety of design concepts.
Most significant for the optimization purpose is the possibility of easy modification of a simplified structure (coordinates of points, plate thickness, assigned material).
Calculation time, which does not exceed several seconds in case of various cross sections and several minutes in case of complex beam structures, guaranties that numerous analysis of an optimization loop will be performed in a reasonable amount of time.
Any optimization “arrangement” including input data modifier tool + solver + output collection + results visualization can be combined with a MEM solver without a great effort thanks to its transparent file format.
Last but not least, the results of Macro Element calculations are comparable with the ones received in laboratory test and FE calculations. Additionally, what is highly important in optimization, MEM calculation process comes with low computation cost.
USE CASE EXAMPLE – B PILLAR
One of the practical examples presents strength testing of B-Pillar, where bending response of the assembly is tested.
One of the greatest challenges faced by the engineers is to reduce mass of the part and at the same time fulfil crash requirements.
MEM can be implemented in such design process on two levels.
On the level of cross sections bending moment analysis for various materials and geometry variants can be performed.
The simplicity of the model enables quick and easy modification of the geometry. Each plate of a cross section can be defined individually which enables testing of various thicknesses and materials.
The time of calculation at 2D level usually takes less than a fraction of second on standard PC.
As a result several blocks of results are available including bending response of the analyzed cross section.
On the level of a 3D structure, MEM allows definition of simplified B-Pillar beam model build of nodes and Super Beam Elements. This gives the possibility to test various geometrical and material specifications in many configurations. The modeling procedure can be conducted semi-automatically using the import from FE tool.
The initial and boundary conditions are defined in form of kinematic constraints assigned to the nodes. The presented B-Pillar structure consists of 11 cross sections, 14 Nodes and 13 Super Beam Elements.
In case of presented load case (350 ms of simulation time, 87 500 time steps) calculations take only 6 seconds.
The company Impact Design Europe is glad to inform you about the development of Cross Section Analyzer.
Below please find latest information about novelties and improvements introduced into our software.
Please feel welcome to share with us all your comments and suggestions. We will try to meet your expectations in the future versions of CSA software.
Agata Abramowicz Sokoll- Impact Design Europe