AFD has extensive experience in Fatigue and Damage Tolerance Evaluation, with authorisation to verify compliance evidence to meet EASA Fatigue and Damage Tolerance Airworthiness Regulations (e.g. CS 25.571).
We perform Fatigue Analyses using either a stress-based (s-N) or strain-based (e-N) approach and develop the necessary analysis tools from first principles to suit the analysis requirements and needs of the customer.
For Damage Tolerance we conduct a fracture mechanics assessment using in house scripts, client-supplied software, or commercially available tools such as AFGROW or NASGRO.
We have extensive knowledge in the F&DT assessment of fuselage penetrations for antenna feed throughs and the substantiation of modified Fatigue Critical Structure.