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On the pressure dependency of threshold stress intensity
- Source :
- Engineering Fracture Mechanics. 6:405-407
- Publication Year :
- 1974
- Publisher :
- Elsevier BV, 1974.
-
Abstract
- Most high strength steel and titanium alloys have been observed to have a threshold stress intensity, below which no environmentally-induced cracking occurs. Recent models for the concentration of atomic hydrogen in the vicinity of a dilatational stress field can be used to predict such threshold stress intensities. These models can predict state of stress effects which can be changed by yield strength, thickness and loading mode. The following analysis demonstrates how an externally applied hydrostatic pressure should increase the threshold stress intensity. A predicted increase of 5000 psi-in 1 2 in an alpha-beta titanium alloy is in reasonable agreement with experimental observations of Dehart and Liebowitz.
- Subjects :
- Materials science
Hydrogen
business.industry
Mechanical Engineering
fungi
Hydrostatic pressure
Threshold stress
technology, industry, and agriculture
Pressure dependency
Titanium alloy
chemistry.chemical_element
Structural engineering
equipment and supplies
Stress field
Cracking
chemistry
Mechanics of Materials
General Materials Science
Composite material
business
Intensity (heat transfer)
Subjects
Details
- ISSN :
- 00137944
- Volume :
- 6
- Database :
- OpenAIRE
- Journal :
- Engineering Fracture Mechanics
- Accession number :
- edsair.doi...........bbd2031e42b7fb1bc90116c37dfc421c