We perform a very wide range of thermomechanical structural calculations – for example transient thermo-mechanical structural calculations for the entire start-up and shutdown process of turbine components. The FEM model used here incorporates both linear-elastic and elastic-plastic material behavior in addition to temperature- and time-dependent material characteristics. Even applied loads can be considered in terms of time in the FEM model.

We use special technologies to examine the smallest design elements (such as holes, grooves or radii) on a large component. For example, we use submodel technology to evaluate stresses and elongations with sufficient accuracy.

As with our structural-mechanical considerations, we can evaluate the results in many different ways:

• Evaluation of flange calculations using DIN EN 1591 and evaluation of screw connections using VDI 2230
• Examination of density (ovalization, sufficient contact pressure)
• Design optimizations in multiple calculation stages, incorporating the design and observance of production feasibility in the respective product area
• Static strength design of parts and assemblies based on the company's own design philosophies and/or appropriate standards, such as Eurocode, FKM, DIN, DIN EN etc.
• Lifetime analyses (HCF, LCF) according to the FKM guideline, the Manson-Coffin / Neuber method or relevant standards
• Weld seam configuration according to the nominal stress, structural stress and/or notch stress concept
• Mathematical proofs according to insurance industry guidelines (Industriforsikring, Germanischer Lloyd, etc.) and testing institutions (TÜV, DNV etc.) and production of the necessary documentation
• Consultancy and collaboration in the production of internal sets of standards and standard parts

For all our services in this field we primarily use tools such as ANSYS, ABAQUS, Marc/Mentat, Pro/MECHANICA and ROHR2.