LS-DYNA geometry for the DRDC experiment.

*Test performed by Defence R&D Canada, Williams et. Al.

SPH C4 Charge5 cm DOB8 cm thick

12.5 cm radius6.2 kg

10 metric ton ring to simulate vehicle mass

Al 5083 plate3.175 cm

thick

Steel Support Frame

SPH simulation of DRDC experiment.

Measured displacements: 30.0 cm center, -5.0 cm at edge.

ALE simulation of DRDC experiment.

Soil Contours

DRDC plate deformation calculated from the LS-DYNA SPH simulation.

Measured displacements: 30.0 cm center, -5.0 cm at edge.

DRDC plate deformation calculated from the LS-DYNA ALE simulation.

~25 ± 2cm, depending on soil compaction compared to 30 cm measured.

Model geometry for the dynamic shell buckling airblast analysis.

Planar pressure

load

ALE air

Aluminum shell(tied to plugs)

Steel plugs(constrained translation)

Air Blast Analysis Results

Test* Calculation

*Photo from Lindberg and Florence, “Dynamic Pulse Buckling,” 1987

Model geometry for vehicle blast simulation.

Contours of pressure during blast-vehicle interaction.

(a) t = 0.1 ms (b) t = 1.1 ms

(c) t = 4.4 ms

Damage to vehicle at 13.0 ms.

Vehicle Damage