Size effects in MD simulations of fracture in bcc iron crystals

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388998%3A_____%2F23%3A00579592" target="_blank" >RIV/61388998:_____/23:00579592 - isvavai.cz</a>
Result on the web
<a href="https://iopscience.iop.org/article/10.1088/1402-4896/ad0d67" target="_blank" >https://iopscience.iop.org/article/10.1088/1402-4896/ad0d67</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1088/1402-4896/ad0d67" target="_blank" >10.1088/1402-4896/ad0d67</a>

Result language
angličtina
Original language name
Size effects in MD simulations of fracture in bcc iron crystals
Original language description
3D parallel simulations via molecular dynamics (MD) show that the brittle or ductile behavior of the atomistic samples with the edge crack (001)[110] (crack plane/crack front) depends on size of the sample. For all samples tested, the crack initiation is brittle. However, the subsequent crack growth can be inhibited by twin formation, crack deflections and new dislocation emissions on {123} slip planes and the final fracture can also be then ductile, which depends mainly on thickness B of the atomistic sample. MD results comply with the stress analysis performed by the anisotropic linear fracture mechanics and with some experimental observations.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
20501 - Materials engineering

Project
<a href="/en/project/GA23-05338S" target="_blank" >GA23-05338S: Mechanical and structural properties of additively manufactured AlSi10Mg alloy with effect of powder recycling</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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