NDE OF ADHESIVE BONDS

Award Information
Agency: Department of Defense
Branch: Navy
Contract: N/A
Agency Tracking Number: 4502
Amount: $208,500.00
Phase: Phase II
Program: SBIR
Awards Year: 1987
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
Texas Research Institute Inc.
9063 Bee Caves Rd, Austin, TX, 78733
DUNS: N/A
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Dr Cecil M Teller
 (512) 263-2101
Business Contact
Phone: () -
Research Institution
N/A
Abstract
THE OVERALL GOAL OF THIS RESEARCH IS TO DEVELOP AN INNOVATIVE NONDESTRUCTIVE (NONINVASIVE) INSPECTION TECHNIQUE THAT CAN DETERMINE WHETHER OR NOT DURABLE ADHESIVE BONDS HAVE BEEN FORMED IN RUBBER-TOMETAL JOINTS AND WHETHER A BOND THAT HAS BEEN EXPOSED TO USE CONDITIONS CONTAINS ITS INTEGRITY. THE PHASE I EFFORT WILL IDENTIFY, DESCRIBE AND EVALUATE THE CONDITIONS FOR EXCITING BOND SENSITIVE ACOUSTIC WAVES, IN PARTICULAR LAMB WAVES, IN RUBBER/METAL LAMINATES RELEVANT TO NAVY APPLICATIONS AND ASSESS THE SENTITIVITY OF WAVE PARAMETERS TO VARIOUS DEGREES OF ADHESION BETWEEN THE MATERIALS. SPECIFIC TECHNICAL OBJECTIVES ARE: 1) TO DETERMINE THE THICKNESS-TOWAVELENGTH LIMIT FOR EXCITATION OF LEAKY LAMB (PLATE) WAVES (THE THICKNESS OF THE ADHERENDS AS WELL AS THE ADHESIVE LAYER WILL BE EXAMINED); 2) TO APPLY EXISTING THEORIES OF WAVE EXCITATION AND PROPAGATION IN LAYERED MEDIA TO BONDED RUBBER-TO-METAL STRUCTURES; 3) TO IMPLEMENT A QUANTIFIABLE METHOD FOR PRODUCING DIFFERENT DEGREES OF BOND ADHESION IN RUBBER/METAL LAMINATES; AND 4) TO DETERMINE THE SENSITIVITY LIMITS OF LEAKY LAMB WAVE METHODOLOGY TO INITIAL BOND QUALITY AND TO CHANGES IN BOND QUALITY, WHERE QUALITY IS DEFINED BY A MEASURE OF ADHESION. ACCELERATED AGING WILL BE EMPLOYED TO EVALUATE ENVIRONMENTAL EXPOSURE EFFECTS.

* information listed above is at the time of submission.

Agency Micro-sites

SBA logo
Department of Agriculture logo
Department of Commerce logo
Department of Defense logo
Department of Education logo
Department of Energy logo
Department of Health and Human Services logo
Department of Homeland Security logo
Department of Transportation logo
Environmental Protection Agency logo
National Aeronautics and Space Administration logo
National Science Foundation logo
US Flag An Official Website of the United States Government