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FATIGUE LIFE PREDICTION BASED ON THREE-DIMENSIONAL STRESS ANALYSIS

Award Information

Agency:
Department of Defense
Branch:
Navy
Award ID:
9206
Program Year/Program:
1989 / SBIR
Agency Tracking Number:
9206
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
Terra Tek Inc.
420 Wakara Way Salt Lake City, UT 84108
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Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 2
Fiscal Year: 1989
Title: FATIGUE LIFE PREDICTION BASED ON THREE-DIMENSIONAL STRESS ANALYSIS
Agency / Branch: DOD / NAVY
Contract: N/A
Award Amount: $453,800.00
 

Abstract:

THE NAVY IS DEVELOPING METHODS TO DETERMINE THE SIZE AND TYPE OF DEFECTS IN HELICOPTER GEARBOXES. WITH THIS KNOWLEDGE A BETTER UNDERSTANDING OF THE FATIGUE-CRACK PROPAGATION CHARACTERISTICS OF THE GEARS AND BEARINGS WILL BE POSSIBLE AND ENHANCE THE ACCURACY IN PREDICTING THE FATIGUE LIFE. THE PURPOSE OF THIS PROPOSAL IS TO UNDERTAKE THIS STEP BY INVESTIGATING THE THREE-DIMENSIONAL STRESS DISTRIBUTION AND THE INFLUENCE OF THE THREE-DIMENSIONAL EFFECTS ON THE STRESS INTENSITY FACTORS ON THE FATIGUE LIFE OF GEARS AND BEARINGS. PROBABILISTIC FRACTURE MECHANICS IS TO BE APPLIED IN THE COUPLING OF THE STATISTIC DISTRIBUTION OF SIZE AND TYPE OF THE DEFECTS AND THE FATIGUE-CRACK PROPAGATION CHARACTERISTICS. EVENTUALLY, A COMPLETE COMPUTER MODEL FOR IMPROVED PREDICTION OF THE FATIGUE LIFE OF THE GEARBOXES WILL BE DEVELOPED IN PHASE II.

Principal Investigator:

Jian-juei Wang
8015842459

Business Contact:

Small Business Information at Submission:

Terra Tek Inc.
400 Wakara Wy Salt Lake City, UT 84108

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