ADHESIVE BOND EVALUATION BY NONDESTRUCTIVE TESTING TECHNIQUES

Award Information

Agency: National Science Foundation

Branch: N/A

Contract: N/A

Agency Tracking Number: 5258

Amount: $40,000.00

Phase: Phase I

Program: SBIR

Solicitation Topic Code: N/A

Solicitation Number: N/A

Timeline

Solicitation Year: N/A

Award Year: 1987

Award Start Date (Proposal Award Date): N/A

Award End Date (Contract End Date): N/A

Small Business Information

Engineering Data Mgmt Inc.

Boardwalk Lakeshore Business Center 736 Whalers Way Bldg. G

Fort Collins, CO 80525

United States

DUNS: N/A

HUBZone Owned: No

Woman Owned: No

Socially and Economically Disadvantaged: No

Principal Investigator

Phone: () -

Business Contact

Name: G. Brent Fagan
Title: Senior Scientist
Phone: () -

Research Institution

N/A

Abstract

THE USE OF ADHESIVE JOINTS IN THE CONSTRUCTION OF VARIOUS PRODUCTS IS AN ATTRACTIVE ALTERNATIVE TO MECHANICAL FASTENERS. THE GREATEST PROBLEM IS STRUCTURAL BONDING IS THE INABILITY TO QUANTIFY THE STRENGTH OF THE BONDED ASSEMBLY FOR DESIGN, QUALITY CONTROL OR MAINTENANCE. CURRENT NONDESTRUCTIVE EVALUATION METHODS HAVE NOT BEEN SUCCESSFUL IN SOLVING THIS PROBLEM. THIS PROPOSAL IS DIRECTED TOWARD THE EVALUATION OF THE FEASIBILITY OF UTILIZING MULTIPLE-VARIABLE NDE METHODS TO PROVIDE FAST, COST-EFFECTIVE, RELIABLE DETERMINATION OF THE STRENGTH OF ADHESIVE BONDS THROUGH THE USE OF THE IMPACT SONIC WAVE SPECTRAL ANALYSIS METHOD. THE POTENTIAL FOR APPLYING THIS METHOD IS EVIDENCED BY ITS PREVIOUS SUCCESSFUL APPLICATION TO EVALUATION OF WOOD AND WOOD PRODUCTS. VARIATIONS IN MATERIAL TYPE, BONDED AREA, QUALITY, AGING, STRESS HISTORY, DENSITY AND CURING WILL BE EVALUATED BY SONIC WAVE NDE METHODS, COMBINED WITH DESTRUCTIVE TESTING. A MODEL WILL BE DEVELOPED AND VERIFIED WHICH CAN PREDICT BOND STRENGTH WITHIN A TARGET OF + 15 PERCENT.

* Information listed above is at the time of submission. *

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ADHESIVE BOND EVALUATION BY NONDESTRUCTIVE TESTING TECHNIQUES