MEMBERS

Award Information
Agency:
National Aeronautics and Space Administration
Branch
n/a
Amount:
$38,000.00
Award Year:
1983
Program:
SBIR
Phase:
Phase I
Contract:
n/a
Agency Tracking Number:
570
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
Anamet Labs Inc
100 Industrial Way, San Carlos, CA, 94070
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
ROCKY R. ARNOLD
PRINCIPAL INVESTIGATOR
() -
Business Contact:
() -
Research Institution:
n/a
Abstract
THIS PROJECT CONCERNS A NEW NON-LINEAR MECHANICS THEORY FOR THE PREDICTION OF ULTIMATE STRENGTH OF COMPOSITE CURVED FRAME MEMBERS. THE THEORETICAL DERIVATION INCLUDES IMPORTANT PHYSICALLY OBSERVABLE CHARACTERISTICS OF COMPOSITES NOT USUALLY INCLUDED IN CONVENTIONAL ELASTICITY THEORIES, SUCH AS EFFECTS OF TRANSVERSE SHEAR, NONLINEAR GEOMETRY, AND NONLINEAR MATERIAL BEHAVIOR. THE FORMULATION UTILIZES AN ENERGY APPROACH BASED ON THE REISSNER VARIATIONAL PRINCIPLE IN WHICH BOTH DISPLACEMENT AND STRESS ARE TAKEN TO BE VARIATIONALLY UNKNOWN. THE RESULTING SYSTEMOF NONLINEAR ALGEBRAIC EQUATIONS CAN BE EASILY PROGRAMMED ONA MODERN DIGITAL COMPUTER, PROVIDING THE DESIGNER WITH AN ACCURATE AND INEXPENSIVE METHOD FOR DESIGN OF CURVED FRAME MEMBERS. COMPARISONS WITH AVAILABLE TEST DATA FROM AN ONGOING NASA-SPONSORED EFFORT CAN BE USED TO SUBSTANTIATE THE THEORETICAL FORMULATION.

* information listed above is at the time of submission.

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