USA flag logo/image

An Official Website of the United States Government

Nonlinear Time Reversal Acoustic Method of Friction Stir Weld Assessment

Award Information

Agency:
National Aeronautics and Space Administration
Branch:
N/A
Award ID:
90781
Program Year/Program:
2009 / SBIR
Agency Tracking Number:
084678
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
ARTANN LABORATORIES, INC.
1459 LOWER FERRY RD TRENTON, NJ -
View profile »
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 1
Fiscal Year: 2009
Title: Nonlinear Time Reversal Acoustic Method of Friction Stir Weld Assessment
Agency: NASA
Contract: NNX09CE85P
Award Amount: $99,990.00
 

Abstract:

The goal of the project is demonstration of the feasibility of Friction Stir Weld (FSW) assessment by novel Nonlinear Time Reversal Acoustic (TRA) method. Time reversal acoustic focusing provides the means to concentrate sound energy at any point in a material, inducing elastic nonlinear effects in the focal area. The level on nonlinearity depends on crack and defect presence and measurements of nonlinear effects in TRA focused wave are the basis of the proposed Nonlinear TRA NDE method. This method is especially sensitive to detection of kissing bond that is difficult to detect by other methods. The experimental setups for measurements of local nonlinearity in FSW will be developed and results of the measurements will be compared with the standard weld NDE methods including dye penetrant, radiographic and ultrasonic inspection.

Principal Investigator:

Armen Sarvazyan
Principal Investigator
6093330710
armen@artannlabs.com

Business Contact:

Noune Sarvazyan
Business Official
5129968565
nsarvaz@artannlabs.com
Small Business Information at Submission:

Artann Laboratories, Inc.
1753 Linvale Harbourton Road Lamberville, NJ 08530

EIN/Tax ID: 223503679
DUNS: N/A
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No