ACOUSTIC EMISSION AND THE PORTEVIN-LE CHATELIER EFFECT. Progress Report, March 1, 1972--November 1, 1972.
- Authors:
- Publication Date:
- Research Org.:
- Johns Hopkins Univ., Baltimore, Md.
- OSTI Identifier:
- 4584098
- Report Number(s):
- COO-2204-1
- NSA Number:
- NSA-27-006873
- DOE Contract Number:
- AT(11-1)-2204
- Resource Type:
- Technical Report
- Resource Relation:
- Other Information: UNCL. Orig. Receipt Date: 30-JUN-73
- Country of Publication:
- United States
- Language:
- English
- Subject:
- N74400* -Physics (Solid State)-Theory; ALLOYS; CRYSTALS; DEFORMATION; EMISSION; METALS; PORTEVIN-LE CHATELIER EFFECT; SOLIDS; SOUND WAVES; METALS/acoustic emission from deforming crystalline, relation to Portevin-Le Chatelier effect; ALLOYS/acoustic emission from deforming crystalline, relation to Portevin-Le Chatelier effect; SOLIDS/acoustic emission from deforming crystalline, relation to Portevin-Le Chatelier effect
Citation Formats
Hartman, W.F. ACOUSTIC EMISSION AND THE PORTEVIN-LE CHATELIER EFFECT. Progress Report, March 1, 1972--November 1, 1972.. United States: N. p., 1972.
Web. doi:10.2172/4584098.
Hartman, W.F. ACOUSTIC EMISSION AND THE PORTEVIN-LE CHATELIER EFFECT. Progress Report, March 1, 1972--November 1, 1972.. United States. doi:10.2172/4584098.
Hartman, W.F. Sat .
"ACOUSTIC EMISSION AND THE PORTEVIN-LE CHATELIER EFFECT. Progress Report, March 1, 1972--November 1, 1972.". United States.
doi:10.2172/4584098. https://www.osti.gov/servlets/purl/4584098.
@article{osti_4584098,
title = {ACOUSTIC EMISSION AND THE PORTEVIN-LE CHATELIER EFFECT. Progress Report, March 1, 1972--November 1, 1972.},
author = {Hartman, W.F.},
abstractNote = {},
doi = {10.2172/4584098},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Sat Jan 01 00:00:00 EST 1972},
month = {Sat Jan 01 00:00:00 EST 1972}
}
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USAEC-DAT dc superconducting power transmission line project at LASL. Progress report, November 1, 1972--March 1, 1973
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Numerical modeling of the Portevin-Le Chatelier effect
A numerical model has been developed to describe the inhomogeneous deformation associated with the Portevin-Le Chatelier effect. The model is based on the transient behavior of dynamic strain aging resulting from the time dependence of the solute concentration at arrested dislocations. Spatial effects are included through a Bridgman-type factor which takes into account stress triaxiality effects at geometrical inhomogeneities. Numerically simulated stress-strain curves are shown to be in excellent agreement with experiment, with all of the important features of the Portevin-Le Chatelier effect being exhibited by the model.