Determination of Proof Load Criteria for the F-14 Arresting Gear Hook Shank

This paper describes a test and evaluation program on the F-14 arresting gear hook shank. The objective was to develop criteria based on analysis and test results, whereby the proof load/inspection interval and overall service life of the hook shank could be safely extended. Fracture mechanics techn...

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Bibliographic Details
Main Authors: Jordan,Kerry D, Dumesnil,Carl E, Gray,Terry D
Format: Report
Language:English
Subjects:
Arresting gear
Bending
Component reports
Computations
Crack propagation
Cracking(Fracturing)
Cyclic tests
Defects(Materials)
Equations
F-14 aircraft
Failure(Mechanics)
Fatigue life
Fractography
Fracture(Mechanics)
Loads(Forces)
Mathematical analysis
Nondestructive testing
Stress analysis
Structural analysis
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Summary:This paper describes a test and evaluation program on the F-14 arresting gear hook shank. The objective was to develop criteria based on analysis and test results, whereby the proof load/inspection interval and overall service life of the hook shank could be safely extended. Fracture mechanics techniques provided a method of assessing the significance of proof tests and correlating proof loads with remaining life under operating loads. The results of this program showed that a two-phase proof load (axial followed by bending) could extend the proof-test interval from 100 to 125 arrested landing cycles. In addition, the total service life could be extended from 1000 to an indeterminate number of arrestments. (Author) This article is from Proceedings of the Army Symposium on Solid Mechanics, 1982 - Critical Mechanics Problems in Systems Design, 21-23 Sep 82, Bass River, Cape Cod, MA, AD-A119 955.