Numerical simulation of fused filament fabrication process and tensile tests

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24620%2F24%3A00012610" target="_blank" >RIV/46747885:24620/24:00012610 - isvavai.cz</a>

Result on the web

<a href="https://www.daaam.info/Downloads/Pdfs/proceedings/proceedings_2024/working_papers/dpn79566_b_1_Abdelkader.pdf" target="_blank" >https://www.daaam.info/Downloads/Pdfs/proceedings/proceedings_2024/working_papers/dpn79566_b_1_Abdelkader.pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.2507/35th.daaam.proceedings.035" target="_blank" >10.2507/35th.daaam.proceedings.035</a>

Result language

angličtina

Original language name

Numerical simulation of fused filament fabrication process and tensile tests

Original language description

Fused Filament Fabrication (FFF) is a prevalent additive manufacturing process that uses thermoplastic materials such as polylactic acid (PLA) in filaments deposited layer-by-layer. This study focuses on the fabrication of components withstanding mechanical loads. However, the FFF parts are subjected to a time-varying thermal profile during manufacturing. Thus, these parts are subjected to geometry distortions and residual stresses due to temperature gradients and varying hardening degrees in adjacent layers, impairing the mechanical performance of 3D-printed structures. Rapid heating and cooling of the polymer feedstock further contribute to non-uniform internal stresses. These residual stresses and geometry distortion determine the research object. Finite element (FE) software ABAQUS is employed to simulate the 3D printing process and tensile test. The FE modelling includes a coupled thermo-mechanical analysis, and a tensile test simulated in two stages. The first analysis stage estimates the residual stresses’ effects on mechanical performance through heat transfer, followed by static structural analysis, generating nodal displacement, stresses, and strains. The second stage uses this calculated stress distribution over time as a predefined stress field to define residual stresses acting in the 3D-printed samples for tensile tests. The experimental results are used to validate the tensile model predictions.

Czech name

—

Czech description

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Type

J_SC - Article in a specialist periodical, which is included in the SCOPUS database

CEP classification

—

OECD FORD branch

20500 - Materials engineering

Project

—

Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2024

Confidentiality

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

Name of the periodical

Annals of DAAAM and Proceedings of the International DAAAM Symposium

ISSN

1726-9679

e-ISSN

—

Volume of the periodical

35

Issue of the periodical within the volume

1

Country of publishing house

AT - AUSTRIA

Number of pages

6

Pages from-to

268-272

UT code for WoS article

—

EID of the result in the Scopus database

2-s2.0-85219622399