US Army Corps of Engineers BUILDINGSTRONG

Transcription

1 Research & Development for Extreme Events: Military & Homeland S it Applications A li ti Security Pamela Kinnebrew Geotechnical & Structures Laboratory Lead Technical Director, Military Engineering + US Army US Army Corps of Engineers Corps of Engineers BUILDINGSTRONG STRONG BUILDING

2 ERDC overview Basecamp protection Effects from buried charges Impact and penetration Protective material development Infrastructure protection

3 2500 Employees Over 1000 Engineers and Scientists t 32% PhDs; 44% MS degrees ERDC R&D Laboratories & Field Offices Army Corps of Engineers 70% Cold Regions Research & Engineering Laboratory (Hanover, NH) Geospatial Research Laboratory (Alexandria, VA) Construction Engineering Research Laboratory (Champaign, IL) Laboratories Field Offices Headquarters (Vicksburg, MS) Coastal & Hydraulics Laboratory Environmental Laboratory $1.1 Billion Total FY14 Funding Information Technology Laboratory

4 DoD Supercomputer Center 1 of 5 in DoD Rapid Repair Levee Breach System Large-Scale Blast Simulation Large Hydraulic Models Hazardous & Toxic Waste Center Ice Engineering Environmental Research

5 Reachback Maneuver Support Rapid Port Enhancement Countermine

6 Full-Scale Experimentation Scaled Experimentation Fast-Running Engineering i Models Computational Modeling

7 pre-test Scaled experiment in ERDC centrifuge post-test pre-test post-test Full scale experiment

8 Simulation results LS-DYNA wall model Full-scale experiment Validated computational models coupled with scaled experiments to develop predictive algorithms for field use

9 protected facility Your coordinated effort provided protection from mortars and rockets for personnel in Iraq utilizing dining facilities and gyms, - GEN David H. Petraeus RAM impact on unprotected structure RAM impact on protected structure RAM protection widespread CENTCOM issue Requirement: Techniques for rapid and efficient protection over y large g areas very BUILDING STRONG

10 video Full-scale experiment: combined weapons effects LSDYNA breach and structural response simulation video Coupled experimental and computational techniques for solution development CTH simulation, blast loading

11 This is world-class research. You should be really proud of what you are doing here. This will help not only today's fight, but will influence future operations as well - COL Ray Nelson, Science Advisor, JIEDDO

12 video Experiment video EPIC meshfree/finite element simulation

13 video video Simulation and validation experiment to quantify vehicle response to buried charge detonation Meshfree method used to model underbelly loading

14 152-mm gun 83-mm gun 83-mm and 152-mm powder guns; up to 5,000 ft/s impact velocity Lab and field experiments to investigate large-caliber, high-velocity penetration mechanics On-board instrumentation packages to measure projectile response

15 Reproducing Kernel Particle Method, concrete penetration model Section B-B video Comparison, experimental and computed craters RKPM multi-hit penetration New method development for impact & penetration More accurate for brittle fracture & fragmentation

16 video video Unprotected conventional construction Issue: conventional construction highly vulnerable to attack video Protected response using elastomeric system Advanced material systems to mitigate debris hazard Significant protection enhancement w/ logistically simple techniques

17 High-fidelity simulation of highexplosive blast effects High-explosive yields up to 20, lb Positive & negative phase loading (accurate waveforms) Economical o ca means to study materials, personnel vulnerability, walls and window systems with and without retrofit materials.

18 Without ERDC technology 300 feet North of impact With ERDC technology 50 feet North of impact Typical third floor views

19 UCSD ERDC video Micro-CT study of concrete microstructure RKPM unit cell analysis with random void structures Probability density function of material Numerically determined distribution of damage damage evolution functions Coupled material and computational science for non-deterministic behavior prediction based on random microstructure 19

20 ½ Scale Tower Model Physical and computational studies to investigate vulnerabilities of bridge structure components Blast experiment on bridge tower Air blast loading on bridge support

21 video Detonation on Prestressed Concrete Bridge Girder Assembly Damage Assessment/ Mitigation Studies for Various Charge Sizes/Placements

22 video Scaled model Simulation Investigate blast effects in complex, congested urban setting video

23 Providing Innovative Solutions for a Safer, Better World