REPORT DOCUMENTATION PAGE
FORM APPROVED
OMB NO. 0704-0188
Public reporting burden for this collection of information is estimated to average 1 hour per response, including the time for reviewing instructions,
searching existing data sources, gathering and maintaining the data needed, and completing and reviewing this collection of information. Send
comments regarding this burden estimate or any other aspect of this collection of information, including suggestions for reducing this burden to
Department of Defense, Washington Headquarters Services, Directorate for Information Operations and Reports (0704-0188), 1215 Jefferson Davis
Highway, Suite 1204, Arlington, VA 22202-4302. Respondents should be aware that notwithstanding any other provision of law, no person shall be
subject to any penalty for failing to comply with a collection of information if it does not display a currently valid OMB control number. PLEASE DO NOT
RETURN YOUR FORM TO THE ABOVE ADDRESS.
1. REPORT DATE (DD-MM-YYYY)
3. DATES COVERED (From – To)
Modeling Reinforced Concrete Protective Construction for Impact
Scenarios
5c. PROGRAM ELEMENT NUMBER
Bradley Durant
Michael Oesterle
Joseph Magallanes
7. PERFORMING ORGANIZATION NAME(S) AND ADDRESS(ES)
8. PERFORMING ORGANIZATION REPORT NUMBER
NAVFAC EXWC Karagozian and Case
1100 23
rd
Ave. 700 N Brand Blvd. Suite 700
Port Hueneme, CA 93043 Glendale, CA 91203
9. SPONSORING / MONITORING AGENCY NAME(S) AND ADDRESS(ES)
10. SPONSOR / MONITOR’S ACRONYM(S)
NAVFAC Headquarters
1322 Patterson Ave.
Suite 1000
Washington Navy Yard, DC 20374-5065
11. SPONSOR / MONITOR’S REPORT NUMBER(S)
12. DISTRIBUTION / AVAILABILITY STATEMENT
DISTRIBUTION STATEMENT A: Approved for public release; distribution is unlimited.
The continuous improvement of analytical methods for determining the ability of reinforced concrete structures to resist blast effects is
critical to the ever-evolving field of explosives safety. When considering impact loading from debris or fragments and localized structural
response modes such as breach, spall, penetration, and perforation, simplified computational procedures are often insufficient to capture
the complexity of the event. Because extensive live testing is often infeasible, validated high-fidelity analysis models can be utilized to
capture structural response to extreme loading scenarios. With this enhanced computational capability comes the challenge of
accurately modeling the mechanical properties of concrete under complex states of stress, material cracking, large deformations, and
high strain rates. This paper evaluates several concrete models using the high-fidelity physics-based code LS-DYNA with respect to
their ability to simulate the response of high-strength concrete to a localized impact event. Each material model was subjected to a
variety of quasi-static loading patterns at the single element level as well as projectile impact loading, and the results were compared
against laboratory test data. The study provides insight into the correlations between improved modeling of high-strength concrete
response to quasi-static loading and the ability to simulate impact events with greater accuracy.
Protective Construction, Physics-Based Modeling, Reinforced Concrete, Impact, Debris, Explosives Safety
16. SECURITY CLASSIFICATION OF:
17. LIMITATION
OF ABSTRACT
19a. NAME OF RESPONSIBLE PERSON
19b. TELEPHONE NUMBER (include area code)
Standard Form 298 (Rev. 8-98)
Prescribed by ANSI Std. Z39.18
