Evaluation and Identifying the Ductile Fracture Area of X70 Steel from DWTT Broken Specimens.

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27600%2F16%3A86100165" target="_blank" >RIV/61989100:27600/16:86100165 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.prostr.2016.06.463" target="_blank" >http://dx.doi.org/10.1016/j.prostr.2016.06.463</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.prostr.2016.06.463" target="_blank" >10.1016/j.prostr.2016.06.463</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Evaluation and Identifying the Ductile Fracture Area of X70 Steel from DWTT Broken Specimens.

Popis výsledku v původním jazyce

Fracture surfaces of X70 steel DWTT broken samples are analyzed using statistical methods and fractal concepts. Besides of fractal geometry concept the new approach based on the normal vectors analysis is presented. The fracture surface is covered by a triangle net. For every triangle the normal vector is determined. Fractal dimension is significantly correlated to the angular deviation of neighboring normal vectors. The mean value of deviation angles and fractal dimension is lower for ductile than for brittle fracture areas. The k-means cluster analysis and multivariate probability distribution are applied to determine the local characteristics of the fracture surface. The fracture surface map of ductile fracture probability and k-means clusters highly corresponds to the real placement of ductile and brittle fracture area on fracture surface of the broken sample. Newly presented statistical methods applied on the fracture surface of DWTT broken samples are useful tools for objective evaluation of ductile fracture percentage.

Název v anglickém jazyce

Evaluation and Identifying the Ductile Fracture Area of X70 Steel from DWTT Broken Specimens.

Popis výsledku anglicky

Fracture surfaces of X70 steel DWTT broken samples are analyzed using statistical methods and fractal concepts. Besides of fractal geometry concept the new approach based on the normal vectors analysis is presented. The fracture surface is covered by a triangle net. For every triangle the normal vector is determined. Fractal dimension is significantly correlated to the angular deviation of neighboring normal vectors. The mean value of deviation angles and fractal dimension is lower for ductile than for brittle fracture areas. The k-means cluster analysis and multivariate probability distribution are applied to determine the local characteristics of the fracture surface. The fracture surface map of ductile fracture probability and k-means clusters highly corresponds to the real placement of ductile and brittle fracture area on fracture surface of the broken sample. Newly presented statistical methods applied on the fracture surface of DWTT broken samples are useful tools for objective evaluation of ductile fracture percentage.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

10102 - Applied mathematics

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2016

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Procedia Structural Integrity. Volume 2

ISBN

978-1-5108-2701-1

ISSN

2452-3216

e-ISSN

neuvedeno

Počet stran výsledku

8

Strana od-do

3727-3734

Název nakladatele

Elsevier

Místo vydání

Amsterdam

Místo konání akce

Catania

Datum konání akce

20. 6. 2016

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000387976803098