Core Service:
Stress Analysis

Analysis is one of the 'means of compliance' and is a cornerstone of your development and certification program. Our stress analysis and report writing is carried out in the context of the applicable airworthiness regulations.

Whether your project requires a quick 'look-see' via traditional hand analysis to give confidence in your design or you require an in-depth comprehensive substantiation to provide the most-confidence/least-weight solution our mission is expediting your work package in the least time, with reliable results and excellent documentation.

We specialize in certification stress analysis and report writing, idealistion of designs for hand analysis and creation of detail or large scale FE models, checking of models and interpretation of results. FE modelling using FEMAP/NXNASTRAN or PATRAN/MSCNASTRAN, review and selection of critical failure criteria and development of margins of safety. We have experience of traditional metallic failure criteria, composite laminate strain (CAI, OHT) and composite lamina stress (maximum stress, Tsai-Wu, etc) failure criteria.
 
Within the stress function we include design review and drawing review, focusing on critical aspects of of the

design in the context of either the 2D or 3D data, relating to; The design review 'means of compliance', appropriate material choices, appropriate processes, part tolerances and assembly stack up and general compliance to federal airworthiness regulations and company weight and cost requirements.
 
Analysis report authoring in Microsoft Excel, Mathcad and Mircosoft word.
 
Other services include:

• 'Redlining' of stress report for loads loop updates
• Selection and development of stress methodologies and development of standard stress method spreadsheets to enable quick authoring of certification standard reports
• Authoring of stress manuals.