Case studies and projects

Much of my work for aerospace and defence is under NDA. The cases here are approved for release, published research, or representative models built to show a capability.

7 cases. Swipe or drag sideways to see them all; tap a picture to enlarge it.

Blade approaching the wall
Blade approaching the wall · 1 / 3
AEROSPACE · eVTOL · IMPACT

High-energy propeller blade containment

Safety verification for an Advanced Air Mobility vehicle: can a failed composite blade reach the passenger cabin? Blade failure at 1700 RPM, about 75 m/s at the tip.

Hailstone hitting a composite radome, six moments in time
AEROSPACE · SPH

Radome hail impact with ice-to-water phase change

A 25 mm hailstone at 21.35 m/s terminal velocity against a composite sandwich radome. 462 mJ absorbed by the radome.

eVTOL aircraft with analysis call-outs
AEROSPACE · eVTOL · STRUCTURE

eVTOL structural analysis suite

Structural verification for the AIR eVTOL: wings, motor mounts, battery frame and landing gear. One consistent model set for the primary flight components.

Crushing and delamination, top view · 1 / 2
COMPOSITES · ENERGY ABSORPTION

Hybrid laminates optimised for energy absorption

Crushing of advanced hybrid laminate architectures, to find what drives energy absorption. Specific energy absorption, against 3,490 J/kg for the baseline.

Helmet liner model with its pads
DEFENCE · PROTECTIVE SYSTEMS

Helmet drop test: large-strain impact

A 2.05 m drop (6.3 m/s) on three anvils, to check peak head acceleration and liner failure. Against a 300 g limit: 184.2 g flat, 151 g hemispherical, 126.3 g curbstone.

Stress results, close-up of the forks
Stress results, close-up of the forks · 1 / 2
INDUSTRIAL

Industrial lifting device: nonlinear verification

Structural integrity of a heavy-duty lifting device under peak load, with plasticity. Safety map of the whole assembly.

Spinal cord during a burst fracture, side view
Spinal cord during a burst fracture, side view · 1 / 2
BIOMECHANICS · PUBLISHED RESEARCH

Traumatic spinal cord injury

How the spinal cord responds to contusion and burst fractures, and what protects it. First study of fluid pressure and epidural fat together.

Technical showreel

More types of simulation: mechanisms, heat transfer, fluid flow and vibration. Swipe or drag sideways; tap a picture to enlarge it.

Mechanical watch movement: transient simulation, with escapement and minute-hand close-ups
Heat transfer in a tube bank: temperature field
Heat transfer in a tube bank: temperature field
The same tube bank: air velocity vectors
The same tube bank: air velocity vectors
Transient flow past a bluff body: velocity vectors and wake vortices
Transient flow past a bluff body: velocity vectors and wake vortices
Monocoque structure: von Mises stress, with a close-up of the peak area
Monocoque structure: von Mises stress, with a close-up of the peak area
Random vibration (PSD): RMS stress in a panel and its hinge
Random vibration (PSD): RMS stress in a panel and its hinge
Pistol firing cycle: von Mises stress in the mechanism

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