Engineering – Tubes and Pipes, Sections and Heavy Plate

The Engineering department is dedicated to the determination, assessment and calculation of the mechanical and technological properties of materials and components. Particular emphasis is placed on investigating strength, as well as ductility, fatigue and fracture properties.

The fields of work range from conventional materials and component testing, fracture-mechanical tests and calculations to the theoretical and experimental analysis of component safety.

The extensive experience gained in these fields also enters into the compilation of failure analyses and reports, as well as into participation in national and international committees, such as DIN (Deutsches Institut für Normung), Stahlinstitut VDEh (Verein deutscher Eisenhüttenleute) and the EPRG (European Pipeline Research Group).

Mechanical-technological characteristics represent the basis of component dimensioning and safety analysis. The preparation of appraisal reports is also based on the knowledge of material properties. The Mechanical Testing and Fracture Mechanics Department ascertains these according to the latest state of the respective technology. Both the tests and the experimental techniques are actively developed in order to determine additional parameters. The work has a special focus on the safety evaluation of defective components with the application of fracture mechanics concepts. Along with experimental fracture mechanics in the framework of the materials testing, both analytical concepts and numerical simulations are used here. Results can be verified with the help of large-scale tests. In this context, the ring expansion test is important, which can be used to efficiently and exactly demonstrate the component characteristics.

Human and environmental safety aspects are by far the most important factors in the competition for more and more efficient component utilization at the capacity limits. Consequently, the Structural Integrity Department draws on the most advanced, leading edge methods in order to analyze, systematically optimize and substantiate the safety of components and systems. Expedient component analyses call for evaluations that take the essential changes in characteristics into account that develop during the individual manufacturing steps. The close-to-reality recording of the structure related influences is an additional special focus area here. The department has its own laboratory with high performance testing units for experimental characterization. The close networking and integration with the other departments facilitates interdisciplinary work.