Accession Number:

AD0601784

Title:

RELIABILITY PREDICTION FOR MECHANICAL AND ELECTROMECHANICAL PARTS.

Descriptive Note:

Final rept.,

Corporate Author:

AMERICAN POWER JET CO RIDGEFIELD N J

Report Date:

1964-05-01

Pagination or Media Count:

297.0

Abstract:

The reliability of selected parts is investigated from the viewpoint of materials behavior throughout parts-materials history, including process, fabrication, test, handling, and early operation. The parts studied are Mechanical bearings and gears, Electromechanical brushes and contacts. Failure mechanisms were examined on the basis of a SCWIFT taxonomy S - Stress-Creep Rupture C - Corrosion W - Wear I - Impact F - Fatigue T - Thermal. Dominant among the mechanisms of failure were wear and fatigue phenomena. A multistage process was developed for organizing analytical and empirical investigation of part failure causes in a broader sense, based on materials influences which may be statistically related to part survival. The definition of a retrospective part survival function was proposed. Data and relationships covering flaw propagation, fracture, corrosion, surface fatigue, and the influence of materials and manufacture was given for the parts studied. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE