USA flag logo/image

An Official Website of the United States Government

DEVELOPMENT OF TEST METHODS FOR GRAPHITE FIBERS

Award Information

Agency:
Department of Defense
Branch:
Navy
Award ID:
12770
Program Year/Program:
1990 / SBIR
Agency Tracking Number:
12770
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
OPTRA, Inc
461 Boston Street Topsfield, MA 01983-
View profile »
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 1
Fiscal Year: 1990
Title: DEVELOPMENT OF TEST METHODS FOR GRAPHITE FIBERS
Agency / Branch: DOD / NAVY
Contract: N/A
Award Amount: $49,927.00
 

Abstract:

ESTABLISHMENT OF A SET OF COMPREHENSIVE TEST METHODOLOGIES FOR DIRECTLY CHARACTERIZING STRAIN BEHAVIOR IN GRAPHITE FIBERS AND FILAMENTS WITH A NON-CONTACTING LASER EXTENSOMETER IS PROPOSED. THESE METHODS WILL ALLOW RESEARCHERS TO BETTER CALCULATE ELASTIC MODULUS, ELASTIC LIMITS, YIELD POINTS, ULTIMATE STRAIN, AND CONSTRUCT STRESS/STRAIN CURVES FOR INDIVIDUAL GRAPHITE FILAMENTS AND FIBERS BUNDLES. THE PROGRAM WILL DEVELOP LASER EXTENSOMETER TEST METHODS FOR CYCLIC AND MONOTONIC (OBSERVING ELASTIC AND PERHAPS PLASTIC BEHAVIOR) LOADING CONDITIONS, VARIOUS GRAPHITE SPECIMEN GEOMETRIES, AND TESTING WITH AN ENVIRONMENTAL CHAMBER. THE RAPID DEVELOPMENT OF NEW COMPOSITE SYSTEMS UTILIZING GLASS OR GRAPHITE REINFORCING FILAMENTS HAS MADE IT NECESSARY FOR RESEARCHERS TO USE NONCONTACTING, OPTICAL EXTENSOMETRY TECHNIQUES. THE LASER EXTENSOMETER IS A POWERFUL RESEARCH TOOL FOR STUDYING STRAIN BEHAVIOR BUT REQUIRES CAREFUL USE AND AN UNDERSTANDING OF PROVEN TEST METHODOLOGIES. THIS PROPOSED PROJECT WILL DEVELOP, THROUGH EXPERIMENTATION AND ANALYSIS, A SET OF COMPREHENSIVE TEST METHODS FOR SETTING-UP A LEASER EXTENSOMETER, ALIGNMENT TECHNIQUES FOR DARK GRAPHITE FILAMENTS (DIAMETER OF > OR - 0.001"), ON-LINE MEASUREMENT TECHNIQUES, DATA ANALYSIS FOR STRESS/STRAIN CURVES, AND ERROR ANALYSIS.

Principal Investigator:

David Voorhes
5089212100

Business Contact:

Small Business Information at Submission:

Optra Inc
66 Cherry Hill Dr Beverly, MA 01915

EIN/Tax ID:
DUNS: N/A
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No