Extreme Loading for Structures


Extreme Loading for Structures is commercial structural-analysis software based on the applied element method for the automatic tracking and propagation of cracks, separation of elements, element collision, and collapse of structures under extreme loads. AEM combines features of Finite element method and Discrete element method simulation with its own solver capabilities for the generation of PC-based structural analysis.

History

2003

In the ELS modeler the user has the ability to model using a variety of default structural components such as columns, slabs, walls, windows, steel sections, reinforcement and 8-node objects. Pre-stressing, cables, pre-cracking and holes can also be added to models to reflect the required attributes of structures. To aid the user in modeling, attachments such as *.dxf, *.stl, *.dgn, and *.jpeg can be easily imported. Models can also be imported from several FEM based software programs such as Abaqus, ANSYS, Etabs, Gambit, Ideas, LS-DYNA, Nastran, Patran, SAP2000, and STAAD. ELS is Building Information Modeling compatible with a plug-in for Autodesk Revit Structure, allowing users to import previously created structural components.

ELS Solver

The solver performs multi-stage static and dynamic analysis in 2D and 3D. Static loading types include concentrated loads, displacements, hydrostatic pressures, uniform pressures, moving loads, element removals, and line loads. Available dynamic loading types include concentrated loads, displacements, seismic loads, uniform pressures, element removals, and moving loads. ELS comes with a predefined material library with both linear and non-linear material models that include steel, concrete, reinforced concrete, glass, aluminum, elastic, and tension.
The AEM solver automatically calculates:
Once the AEM solver begins, output can be immediately observed in the ELS viewer. A variety of animated diagrams, charts and files can be created for visual representation of the analysis. The ELS viewer can create the following exportable content:
ELS is currently being utilized for structural engineering analysis functions such as structural vulnerability assessment & risk mitigation, progressive collapse analysis, blast analysis, demolition prediction analysis, impact analysis, seismic analysis, forensic engineering, performance based design, glass performance analysis product development and visual effects.

Academic institutions

More than 20 universities and academic institutions are currently involved in research and development projects resulting in the creation of publications on topics related to the Applied Element Method and Extreme Loading for Structures. Academic institutions working with ELS include: