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Stress-corrosion cracking in metalsCriteria and recommended practices for preventing stress-corrosion cracking from impairing the structural integrity and flightworthiness of space vehicles are presented. The important variables affecting stress-corrosion cracking are considered to be the environment, including time and temperature; metal composition, and structure; and sustained tensile stress. For designing spacecraft structures that are free of stress-corrosion cracking for the service life of the vehicle the following rules apply: (1) identification and control of the environments to which the structure will be exposed during construction, storage, transportation, and use; (2) selection of alloy compositions and tempers which are resistant to stress-corrosion cracking in the identified environment; (3) control of fabrication and other processes which may introduce residual tensile stresses or damage the material; (4) limitation of the combined residual and applied tensile stresses to below the threshold stress level for the onset of cracking throughout the service life of the vehicle; and (5) establishment of a thorough inspection program.
Document ID
19720010278
Document Type
Special Publication (SP)
Date Acquired
September 2, 2013
Publication Date
August 1, 1971
Subject Category
STRUCTURAL MECHANICS
Report/Patent Number
NASA-SP-8082
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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NameType 19720010278.pdf STI