Growth of a brittle crack (001) in 3D bcc iron crystal with a Cu nano-particle

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388998%3A_____%2F14%3A00421102" target="_blank" >RIV/61388998:_____/14:00421102 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1016/j.commatsci.2013.10.037" target="_blank" >http://dx.doi.org/10.1016/j.commatsci.2013.10.037</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.commatsci.2013.10.037" target="_blank" >10.1016/j.commatsci.2013.10.037</a>

Result language
angličtina
Original language name
Growth of a brittle crack (001) in 3D bcc iron crystal with a Cu nano-particle
Original language description
Paper deals with crack extension under mode I in a 3D crystal of bcc iron with a small Cu inhomogeneity in front of the crack via 3D atomistic simulations by molecular dynamics. The results show that after fast Cu penetration crack extension differs fromthat in pure bcc iron. While in pure bcc Fe the crack front remains straight during brittle crack extension, in the Fe-Cu crystal crack front wave of the type 3/2 l arises, modulated by shorter atomic waves. Wave minimum is at Cu-particle since Cu retards locally the crack due to changes in the stress field after the penetration. As a consequence, acoustic emission on crack faces is corrugated as well.
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
JG - Metallurgy, metal materials
OECD FORD branch
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Project
<a href="/en/project/GA101%2F09%2F1630" target="_blank" >GA101/09/1630: Numerical solution to steady-state and transient wave dispersion in mechanical systems on different scales</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2014
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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