STOCHASTIC METHODS IN PROTECTIVE STRUCTURES

Award Information
Agency: Department of Defense
Branch: Air Force
Contract: N/A
Agency Tracking Number: 5521
Amount: $56,372.00
Phase: Phase I
Program: SBIR
Awards Year: 1987
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
Applied Research Assocs Inc
6404 Falls Of Neuse Rd - Ste 2, Raleigh, NC, 27615
DUNS: N/A
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 LAWRENCE A TWISDALE JR
 (919) 876-0018
Business Contact
Phone: () -
Research Institution
N/A
Abstract
A PHASE I EFFORT IS PROPOSED TO INTEGRATE PREVIOUS WORK AND DEVELOP THE NEEDED RESEARCH BASE TO ASSESS AND DEVELOP STOCHASTIC METHODS FOR PROTECTIVE DESIGN FOR NON-NUCLEAR WEAPONS. THE CORNERSTONE OF THIS EFFORT WILL BE THE DEVELOPMENT OF A RELIABILITY-BASED DESIGN (RBD) PROCEDURE. THERE ARE SEVERAL WELL DEVELOPED RBD PROCEDURES (LOAD AND RESISTANCE FACTORS, FIRST-ORDER SECOND-MOMENT, AND MONTE CARLO METHODS) THAT ARE RELEVANT TO STOCHASTIC PROTECTIVE DESIGN. AN INFORMED SELECTION OF ONE OF THESE METHODS REQUIRES, FIRST, AN ANALYSIS OF THE UNCERTAINTIES; AND SECOND, AN ASSESSMENT OF COMPUTATIONALS SIMPLICITY/PREDICTION ACCURACY TRADEOFFS. HENCE, THE PROPOSED PHASE I TECHNICAL OBJECTIVES ARE: (1) IDENTIFY AND ANALYZE UNCERTAINTIES FOR EACH BASIC STRUCTURAL RESPONSE FAILURE MODE FOR PROTECTIVE STRUCTURES; (2) REVIEW STOCHASTIC METHODS AND PERFORM CALCULATIONS OF PROBABILITY OF SURVIVAL USING EACH OF THE ALTERNATIVE RBD PROCEDURES FOR THE RELEVANT FAILURE MODES FOR TWO PROTECTIVE STRUCTURE DESIGNS; AND (3) DEVELOP AND PRESENT A DETAILED PLAN OF THE TASKS REQUIRED TO DEVELOP STATE-OF-THE-ART RBD PROCEDURES FOR EACH LOAD-RESPONSE MECHANISM.

* information listed above is at the time of submission.

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