SBIR/STTR Research Award
DEVELOPMENT OF BROADBAND-ULTRASONIC PULSE METHOD FOR MEASURING RESIDUAL STRESSES AND THEIR GRADIENTS
Award amount
$451,866Program and phase
SBIR · Phase IIAward year
1992Award details
- Awarding agency
- Department of Defense
- Branch
- Army
- Recipient company
- Strainoptic Technologies, Inc.
- Proposal award date
- Not reported
- Contract end date
- Not reported
- UEI
- Not reported
- Solicitation number
- Not reported
- Topic code
- Not reported
Research abstract
THE OBJECTIVE OF THE PROPOSED RESEARCH IS TO DEVELOP A METHOD FOR MEASURING RESIDUAL STRESS GRADIENTS IN THE WALL OF ARTILLERY SHELLS, BASED ON A NOVEL ACOUSTO-ELASTIC APPROACH, USING A BROADBAND ULTRASONIC SIGNAL AND SURFACE-HUGGING GUIDED WAVE MODES. THE RESEARCH WILL INCLUDE THE DEVELOPMENT OF SUITABLE TOOLS AND SOFTWARE FOR DATA ANALYSIS. IT IS ALSO PROPOSED HERE TO DEVELOP AN ULTRASONIC STRESS-ROSETTE TO EVALUATE PRINCIPAL STRESS DIRECTION. AS A RESULT OF THE PROPOSED RESEARCH, IT IS HOPED THAT A NEW METHOD WILL BE DEMONSTRATED, CAPABLE OF SOLVING MANY RESIDUAL-STRESS ANALYSIS PROBLEMS. SUCH A TOOL SHOULD FIND AN EXTENSIVE APPLICAATION BOTH IN GOVERNMENT AND INDUSTRIAL LABORATORIES.
Technology keywords
Not reported