In the conventional design context, it is necessary that the stressability at failure-critical points is verified and corresponding FEM substitute models are provided with operating and boundary conditions for assessment. The design is usually based on a few operating points. Great potential results from the direct consideration of measured conditions on the component. With modern methods of CAE, a structural mechanics FEM calculation of the component under consideration is carried out directly. By such a linkage of measured quantities coupled by input quantities with a structural-mechanical FEM simulation, a representation and also an evaluation of local stress quantities can take place on the real data basis. If suitable material models are used, it is even possible to monitor the state of damage. In a further step, it is conceivable to have the coupling and linking take place in real time and thus to provide structural-mechanical state variables continuously on the basis of numerical simulations. Such a combination of measured variables and input variables to a structural-mechanical FEM simulation allows a representation and also an evaluation of local stress variables to be carried out on the real data basis. If suitable material models are used, it is even possible to monitor the state of damage. In a further step, it is conceivable to have the coupling and linking in real time, so that the structural variables are continuously available as monitoring variables on the basis of simulations. This provides new possibilities with regard to the determination and planning of maintenance and revision intervals. Real-time simulation and consideration of the material condition can provide the opportunity to define condition-based maintenance and to gain planning capability. In order to implement a simulation coupled with measurement data in virtually real time, it is necessary to identify required subsystems, modules and interfaces and to put them into an interactive exchange with each other. To demonstrate the concept, a test rig for characterizing material samples under high temperature is considered as an object. The resolution of local stress variables is demonstrated using an exemplary component geometry with geometric notches for different model approaches. Specifically, this involves the investigation of thin structures in the form of butt welded joints at high temperature under LCF loading. Local approaches according to the local concepts are used to represent local stresses. A triangulation method is used to provide geometry, so that real geometries are taken into account. For the mapping of the analog measurement signals in the FEM environment, an interface is implemented via internal program-specific subroutines of the FEM software. Boundary conditions and process variables (measurement signals) are thus continuously made available to the FEM environment. Furthermore, two different material modeling approaches are considered and investigated with respect to their applicability in the conceptual framework. The first model is implemented on the basis of multilinear stress-strain relations with kinematic hardening (Besseling) and temperature dependency. Time-dependent phenomena are not considered at this point. In the calculation mode recalculate (existing measured values are taken from the ring buffer as nominal values), the model approach provides reliable results with respect to the locally resolved stresses in both the 2D (2D geometry section) and 3D cases (full 3D geometry). The results by using the 2D variant show the same local results compared to the 3D variant (locally resolved weld notch). When the case - simulation computes faster than measured data can be provided - occurs, this chosen approach reaches its limits. In this case, a calculation of FEM quantities is no longer possible and a termination of the calculation occurs. To solve this problem, the visco-plastic and Chaboche-based material model KORA is implemented and the parameters required for the test material are determined. Furthermore, the model offers the possibility to represent time-dependent phenomena and to provide the description of a damage variable. From the point of view of the feasibility of real-time capability, it should be mentioned that internal state variables (time-step control) can be accessed and externally controlled via the external subroutine control. Through a targeted model optimization with simultaneous reduction of the computational effort (shifting the focus to a critical local position), the computational effort can be significantly reduced, so that a calculation of the structural mechanical quantities can safely take place in real time.