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Research and Development


Composite Stiffened Panel Optimisation


Aero Optimal commenced the development of the first analytical optimisation tool for CFRP stiffened panels typically used in large CAT "A" composite structures in 2011. This innovation facilitated the creation of minimum-weight systems for multiple criteria in stiffness, strength, stability, and damage tolerance. However, over-design due to damage tolerance criteria dominating the design drive for CFRP panels was a key concern, hence the subject of several Aero Optimal study proposals.

Aero Optimal believed that the solution was to develop an analytical method for high accuracy in predicting the dynamic response of impact damage. Updating this criterion as a responsive damage tolerance module to the software tool allows engineers to enhance failure prediction accuracy and negate the need for unnecessary, expensive, and time-consuming tests.


 Analytical Prediction of Impact damage on Stiffened Composite Panels

This study investigated the effect of variable stiffness distribution due to the stringer presence with various layups for panel-stringer laminate under impact loading. Analytical models from a typical skin-stringers assembly were developed based on a spring-mass system to predict the striker-plate domain's dynamic behaviour and determine the contact force history. Comparison with experimental and Finite Element results that the model developed proved to successfully predict the response of stringer-stiffened composite panels with a range of layups and geometry designs under low-velocity impact loading conditions.

Analytical Prediction of Impact damage o


Commercial Drone

Case study of a fixed-wing e-S/VTOL air vehicle, integrating the technologies in battery, optical and acoustic sensors.  It incorporates a complete electrical propulsion system with short and vertical take-off & landing capabilities and an airframe made of advanced composite materials.


The MRU-Drone is designed primarily for use as a commercial delivery system adaptable for use in the inspection of oil & gas pipelines, aerial surveys, and mapping:

  • An air express service connecting major cities up to 100 Km range

  • A delivery system for a package of a 5kg container

  • Structure health monitoring and management

  • Composite airframe with modular/interchangeable parts

  • Battery: Ultra-High Energy Pack

  • Flight computer with an integrated control system

  • Electric propulsion power (e-motor propellers)

  • Energy recuperation capability

  • Real-time flight monitoring for timely safety action

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