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UNDER RAPID THERMAL LOADING

Award Information

Agency:
Department of Defense
Branch:
Air Force
Award ID:
3682
Program Year/Program:
1986 / SBIR
Agency Tracking Number:
3682
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
Aptech Engineering Services
Po Box 3440 Sunnyvale, CA 94088
View profile »
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 1
Fiscal Year: 1986
Title: UNDER RAPID THERMAL LOADING
Agency / Branch: DOD / USAF
Contract: N/A
Award Amount: $49,917.00
 

Abstract:

FRACTURE MECHANICS LIFE PREDICTIONS REQUIRE THE DETERMINATION OF CRACK TIP STRESS INTENSITY FACTORS FOR USE IN STRUCTURAL RELIABILITY ASSESSMENTS. STRESSES IN METALLIC COMPONENTS RESULTING FROM RAPID THERMAL PULSING CAN BE HIGHLY COMPLEX AND SEVERE STRESS GRADIENTS OF A TENSILE AND COMPRESSIVE NATURE WILL OCCUR. IT IS PROPOSED HEREIN THAT A WEIGHT OR INFLUENCE FUNCTION METHOD BE DEVELOPED BECAUSE OF ITS EFFICIENCY TO SOLVE SUCH PROBLEMS. THE USE OF INFLUENCE FUNCTIONS WILL AVOID THE UNNECESSARY DISSIPATION OF RESOURCES WHEN REPETITIVE STRESS INTENSITY FACTOR CALCULATIONS ARE REQUIRED, SUCH AS IN FATIGUE CRACK GROWTH ANALYSES OR IN MONTE CARLO SIMULATIONS. A MAJOR BENEFIT OF THIS PROJECT WILL BE A COMPUTER PROGRAM THAT WILL EXECUTE ON A DESKTOP MICROCOMPUTER SO THAT THE TECHNIQUE CAN BE EASILY USED BY ENGINEERS.

Principal Investigator:

Russell c cipolla
4158582863

Business Contact:

Small Business Information at Submission:

Aptech Engineering Services In
795 San Antonio Rd Palo Alto, CA 94303

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