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Universal AddressNAC: 8B9BK PL6ZXLongitude: -79.875296Latitude: 39.646658Datum: WGS84

X3DCAE LLC128 Sun Valley

Morgantown, WV 26508USA

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(304) 594-9343 phone(815) 642-8405 [email protected]

www.X3Dcae.com

FULL SIZE BROCHURE

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X3DCAE BIRDSTRIKE WITH ALE




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X3DCAE BIRDSTRIKE ON ROTATING BLADES WITH SPH




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4.00 mm

5.00 mm

8.00 mm

5.00 mm

6.00 mm design 1 design 2

design 3

2.50 mm

5.00 mm

8.00 mm

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6.00 mm

4.00 mm

5.00 mm

8.00 mm

5.00 mm

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3.00 mm

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3.50 mmthree explosion containment tank designs have been analyzedthe material is steel SAE950the wall thickness assignments are shown next to the tanks

6 kg of C-4 explosive have been placed inside each tank

design 1 was created so that it would contain the explosiondesign 2 was created with weight savings as the only criteriondesign 3 was created so that it would contain the explosion while being lighter than design 1

design 1 mass: 185.4 kgdesign 2 mass: 139.4 kgdesign 3 mass: 168.3 kg

the analysis was carried out with LS-DYNA version 970on a Linux box with AMD Opteron processors

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design 1 design 2

design 3

the deformation pattern for the three containmenttank designs is shown here at 5 msec afterthe explosion

design 1 is the baseline design for this studyand it was assigned such wall thickness so that itwould contain the explosive shock anyway

design 2 was created only with weightsavings in mind and it has eruptedthe failure pattern initiated at the thicknesstransition area, below the equator of thecontainment tank

design 3 was created so that it would be lighterthan design 1 without compromising the goal ofcontaining the nominal explosive force

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design 1 design 2

design 3SAM

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SIS the contour plots on this page represent the distribution of

von Mises stresses in the walls of the three containmenttanks at 5 msec after the explosionthe red areas represent stress levels that are equal to orhigher than the yield stress for steel SAE950

LS-DYNA is an Explicit Finite Element Analysis code and therefore it can simulate Transient Dynamics phenomenawith nearly the same accuracy as closed-form mathematicalsolutions

avi movie files animating the complete progress of the stresscontour and deformation propagation in the three containmenttanks (from 0 to 120 msec) are also available

in addition, the time histories of energy (strain energy, kinetic,etc.), node displacement, velocities and accelerations as wellas several other types of results are available for review andevaluation in the form of "X-Y" graphs




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THE FIRST AND ONLY WEST VIRGINIA CAE FIRM PERFORMING TRANSIENT DYNAMIC ANALYSIS

WITH ADVANCED EXPLICIT CODES LIKE LS-DYNA

HIGH SPEED IMPACT AND DROP TEST SIMULATIONS with LS-DYNApendulum tests, free and platform mounted drop tests, birdstrikes with classic Lagrangian methods as well as with Smoothed Particle Hydrodynamics (SPH) and Arbitrary Lagrangian Eulerian (ALE) analysis

FLUID STRUCTURE INTERACTIONwith Smoothed Particle Hydrodynamics (SPH) and the Arbitrary LagrangianEulerian (ALE) method

COMPOSITE LAMINATES AND PA6 NYLONSglass/epoxy and graphite/epoxy panels, PA6 glass reinforced nylon parts

HIGH SECONDARY (BASE) EXPLOSIVES with LS-DYNATNT, RDX (C-4), HMX, PETNprotection shields and energy absorbing mechanisms for anti-personnel / anti-tank mines and roadside bombs, controlled explosion containers (containment tanks) etc.

AUTOMOTIVE CRASHWORTHINESS AND OCCUPANT SAFETYFMVSS and UN/ECE Safety Regulations with LS-DYNAFMVSS 201, 202, 203, 207, 208, 210, 213, 214, 216, 225ECE R-12, R-14, R-17, R-25, R-32, R-33, R-42, R-44, R-95

CORRELATION STUDIES with LS-DYNAcorrelation of FEA model to lab test results

BIOENGINEERING with LS-DYNAimpact analysis of bone / cartilage / ligament assemblies

IMPLICIT ANALYSIS with LS-DYNAstandard modal analysis / NVH with LS-DYNA (implicit eigenvalue analysis)Non-linear static analysis with loadsteps and non-linear materials,thermal expansion stresses

MESHING - ANSA - HYPERMESHhigh quality fast mesh generation with ANSA, including plastic molds with multiple intersecting ribs, bosses, variable thickness walls, metal stampings,cushion and other energy absorbing foams, unloaded or prestressed, air intake manifolds, oil pans, dashboards, seats, doors, passenger airbag canisters, glovebox compartments, A/B pillar inserts, bumpers, clutch and transaxle housings, windshields

NHTSA THOR crash test dummy Lower Extremity block impact on a PA6 glass reinforced Nylon panel

FMVSS 208

pendulum impact test

failure of explosives containment tank

SPH birdstrike analysis at 500km/hon spinning turbine blades




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