Size Effect on the Ductile Fracture of the Aluminium Alloy 2024-T351

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F24%3APU152131" target="_blank" >RIV/00216305:26210/24:PU152131 - isvavai.cz</a>

Result on the web

<a href="https://link.springer.com/article/10.1007/s11340-024-01108-3" target="_blank" >https://link.springer.com/article/10.1007/s11340-024-01108-3</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s11340-024-01108-3" target="_blank" >10.1007/s11340-024-01108-3</a>

Result language

angličtina

Original language name

Size Effect on the Ductile Fracture of the Aluminium Alloy 2024-T351

Original language description

Background Reliably calibrated criteria are needed for an accurate prediction of fracture of various components. However, there is not always a sufficient amount of material available. Therefore, miniature testing provides an alternative that is researched together with the following calibration of the ductile fracture criteria and investigating the size effect. Objective The aim is to design miniature testing equipment and specimens for tensile testing, which covers various stress states. This is supplemented by the small punch test, which has the same specimen thickness, taken from the literature to broaden the portfolio for calibration. The second part deals with conducting the finite element analysis, which provided a basis for the calibration of the phenomenological ductile fracture criterion applicable to crack-free bodies to indicate the crack initiation. Methods The steel frame to test thin specimens is designed with optical measurement of deformations. The finite element method is used, within Abaqus and user subroutines, to simulate the tests to obtain the variables needed for the calibration. In addition, the calibration of the criterion using machine learning is explored. Results The feasibility of the proposed experimental program is tested on the aluminium alloy 2024-T351. Moreover, the numerical simulations, which showed a good match with experiments in terms of force responses, adds to the knowledge of modelling in the scope of continuum damage mechanics. Conclusions The presented results provide a material basis for the aluminium alloy studied on a lower scale, while they broaden the testing possibilities and analyses the calibration strategies for the best failure predictability possible.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

20302 - Applied mechanics

Project

<a href="/en/project/GA23-04724S" target="_blank" >GA23-04724S: Computational modelling of ductile fracture of identical wrought and printed metallic materials under ultra-low-cycle fatigue</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2024

Confidentiality

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

Name of the periodical

EXPERIMENTAL MECHANICS

ISSN

0014-4851

e-ISSN

1741-2765

Volume of the periodical

64

Issue of the periodical within the volume

1

Country of publishing house

GB - UNITED KINGDOM

Number of pages

13

Pages from-to

1483-1495

UT code for WoS article

001309262400001

EID of the result in the Scopus database

2-s2.0-85203425690