Verifiably Loadable Machine Components Thanks to Computational Strength Verification in Accordance with the FKM Guideline – Software and Service from a Single Source

Simulations using the finite element method (FEM) provide information on the stress and deformation of a component.

On this basis, rough derivations are possible as to whether the component exceeds the permissible stress at corresponding points. However, many factors influencing the strength of a component remain unnoticed. These include:

  • Manufacturing influences, such as surface finish or strain hardening  
  • Design and shape-related parameters, for example in the case of thin-walled structures or in relation to the effective diameter of axles and shafts
  • Material properties and material characteristics, for example with regard to plasticization or crack formation
  • Superposition and cyclic sequence of load cases  

The Forschungskuratorium Maschinenbau e.V. (FKM) has defined the so-called "Computational Strength Analysis of Mechanical Engineering Components" (generally referred to as the "FKM Guideline") against this background. This uniformly structured calculation algorithm for evaluating strength and service life has established itself as a reliable standard in the German-speaking world and is subject to continuous further development.

Full-surface, visualized FKM verification with AutoFENA in just a few minutes

To perform the FKM verification, the use of computational programs is the obvious choice. It is true that failure-critical points can be identified with a great deal of engineering expertise. However, at the latest when superpositions and sequences of load cases occur, the verification and visualization of the strength become

  • complex,  
  • costly and
  • ultimately uncertain due to manual data input.

The FKM calculation program AutoFENA, developed by ihf Ingenieurgesellschaft, completes this process in just a few minutes.

The program uses the data from the FEM software (e.g. SIMULIA Abaqus) via an interface and thus offers an automated workflow through which any load case combinations can be analyzed and displayed without any problems. By feeding the results back into the FEM software, a 3D visualization of the degree of utilization over the entire surface of the examined component is created.

Gain safety, minimize risk

Reduce effort (e.g. no manual selection of failure critical points)

Increase efficiency thanks to guided process between FEM and FKM software

Exploit material reserves

Static and cyclic verifications

Competent support and service with complementary know-how from ihf

When does it make sense to outsource FKM verifications?

We not only provide you with the appropriate tools, we also support you within the scope of services: For example, if you are facing particularly complex challenges, are pressed for time or do not have sufficient capacity for extensive projects, you can draw on the expertise of our experienced simulation engineers without having to invest in additional personnel and software yourself. As a specialized engineering company we deliver accurate and reliable results within a short timeframe.

Why should you work with Wölfel and ihf?

Wölfel has successfully carried out hundreds of simulation projects itself over the past decades. Not only the customers who commission us to carry out FKM or weld seam verifications in compliance with the guidelines benefit from this experience, but also our customers in software sales: we ourselves know the programs we offer down to the last detail. And of course, Wölfel only sells software that our own simulation engineers personally recommend. In this way, we can provide you with optimal and transparent advice on software procurement and ensure first-class support. The supplier of AutoFENA, ihf Ingenieurgesellschaft, is not just any software developer, but is actively involved in the further development of the FKM guideline itself. This ensures that all changes are up-to-date and reliably incorporated into the program.

Contact us now if you want to achieve more efficiency, speed and safety in the FKM verification process and thus for your entire design processes.

Your focus is on FE-based fatigue analysis without the application of the FKM guideline?

Then we recommend SIMULIA fe-safe from the SIMULIA Unified License Portfolio. Contact us – together we will find the right solution along with the ideal workflow for you. No matter whether you want to procure software and use it yourself or access our expertise as a simulation service provider to accelerate your product development projects.

Please contact us personally


We are happy to advise you on the development, optimization and automation of your simulation processes as well as on questions concerning your licenses and the work with SIMULIA software.

Dipl.-Ing. Wolfgang Rupp
CAE Software

+49 931 49708-183

Michael Nguyen
CAE Software

+49 931 49708-185