Our core competence in the field of aviation is the certification of metal and composite structures according to CS-23, CS-25, and CS-27.

Based on the regulations, means of compliance and your own standards we find the optimal combination of classical analysis, numerical FE-simulation, and test. For very complex tasks, we automate the process of structural analysis with customized software. By automating classical analysis methods, FE-simulation as well as data processing we create efficient solutions especially in iterative development projects.

Products for the aviation industry demand the highest requirements on safety and reliability. A clear strategy, consistent implementation and traceable documentation are key factors in developing and certifying compliant products quickly and cost-effectively.

Fatigue & Damage Tolerance Certification

Fatigue & Damage Tolerance (F&DT) certification according to CS/FAR requirements for metal and composite structures:

  • Certification strategy
  • Fatigue and test spectrum development
  • Test planning, support, and documentation (coupon, element, component, and full-scale tests)
  • Fatigue calculations (e.g. with AFGROW)
  • Inspection interval calculation
  • Tear Down Inspection Support

Interior Qualification

Certification of aircraft interior according to CS/FAR requirements as part of a Type Certificate (TC) or Supplemental Type Certificate (STC).

  • Structural certification
  • Flammability Certification (Fire Protection)
  • Fire Containment Testing (Fire Protection)

Material und Fastener Qualification

Qualification of materials and structural elements according to CS/FAR requirements:

  • Composite material qualification according to CMH-17
  • Qualification of metallic materials and fasteners according to MMPDS (formerly MIL-HDBK-5)

Reliability of non-destructive testing methods

Probability of Detection (POD) for non-destructive testing (NDT) methods according to MIL-HDBK-1823A:

  • Strategies for the determination of detectable damage size
  • Design and execution of tests
  • Data evaluation and interpretation
  • Consulting for the optimization of the inspection process (improvement of reliability)

Classical Structural Analyses

We support you with various methods of structural analysis:

  • Load calculations
  • Static Strength Analysis
  • Stability Analysis
  • Fatigue Strength Analysis
  • System Analyses
  • Precision and tolerance calculations


Our services:

  • Development of representative FE-models
  • Data evaluation
  • Documentation

We work with different FE tools:

  • FEMAP with NX NASTRAN (Siemens)

We are also happy to use other software to meet your specific requirements.

Trials and Testing

Our service:

  • Test concept development
  • Test planning
  • Implementation
  • Documentation
  • Statistical data evaluation
  • Data processing and interpretation

We have practical experience with different tests such as

  • Static tests
  • Fatigue tests
  • Qualification of materials and structural elements
  • Impact tests
  • Functional tests



Automated Analysis

Analyses of complex structures are multifaceted and laborious. Often, designs and requirements such as load cases, failure criteria etc. change during the analysis process. This further increases the complexity of the task.

The solution: Fast iteration by automating the analysis with tailored software. We automate classical analysis methods, FE simulation as well as data processing with software in Excel VBA, Python, R Matlab or C/C++. This enables:

  • Fast iteration with a few clicks, even with large amounts of data
  • Adjustments to parameters or the analysis process are immediately visible in the results
  • Simple data handling, preparation and presentation
  • Early optimization of complex structures
  • Rapid sensitivity analyses