Experimental study and hybrid optimization of material extrusion process parameters for enhancement of fracture resistance of biodegradable nanocomposites

Basit Öğe Kaydı
dc.authoridSeyedzavvar, Mirsadegh/0000-0002-3324-7689
dc.contributor.authorSeyedzavvar, Mirsadegh
dc.contributor.authorBoga, Cem
dc.contributor.authorZehir, Burcak
dc.date.accessioned2025-01-06T17:44:01Z
dc.date.available2025-01-06T17:44:01Z
dc.date.issued2023
dc.description.abstractAmong the additive manufacturing processes, the material extrusion (ME) is the most popular and affordable technique in production of a wide range of products, from prototypes to the final products, for different industrial sectors. The most popular raw material in this process is the biodegradable polylactic acid (PLA) polymer that offers ease of production in relatively low price and wide applications in synthesis of medical proteases. However, the mechanical strength of fabricated samples and their resistance against the fracture loadings, which are critical for components synthesized for medical applications, are strongly dependent on the ME process parameters and the composition of the base material. Therefore, this study is aimed to address both the strengthening mechanisms of inorganic CaCO3 nanoadditives in the PLA matrix and the influence of ME process parameters on the fracture resistance of fabricated samples. To this aim, the PLA/CaCO3 nanocomposite filaments have been produced by mix-blending/extrusion tech-nique and were employed to fabricate tensile and fracture test samples in ME process under different sets of parameters, including printing speed, layer thickness, filling ratio and printing pattern, determined by Taguchi L27 orthogonal array. The fracture experiments were conducted on a uniaxial tensile test machine using a specially designed fixture that makes the application of mixed-mode loading on fracture samples possible. The results of fracture toughness of specimens were employed as input data to model the response of fabricated samples and to determine the ME parameter levels and nanoparticle concentrations for maximum fracture resistance of fabri-cated samples based on a hybrid algorithm of artificial neural network and ant colony optimi-zation (ANN/ACO). Differential scanning calorimetry was used to characterize the thermal features (i.e. glass transition, crystallization and melting temperatures) as well as the degree of crystallization of ME samples. Scanning electron microscopy of fracture surfaces were employed to study the influence of ME parameters and CaCO3 nanoadditives on the characteristics of fracture of 3D printed specimens under various modes of loading. Overall, the results showed that the effects of ME parameters on the fracture behavior of 3D printed samples are highly inter-connected and, in the case of a semicrystalline polymer, are highly dependent on the physical characteristics of the fabrication process, including the heat transfer and crystallization rate of the matrix.
dc.description.sponsorship[22303001]
dc.description.sponsorshipAcknowledgment This work was supported by Scientific Research Coordination Unit of Adana Alparslan Turkes, Science and Technology University with project number of 22303001.
dc.identifier.doi10.1016/j.engfailanal.2023.107294
dc.identifier.issn1350-6307
dc.identifier.issn1873-1961
dc.identifier.scopus2-s2.0-85156269720
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1016/j.engfailanal.2023.107294
dc.identifier.urihttps://hdl.handle.net/20.500.14669/2877
dc.identifier.volume150
dc.identifier.wosWOS:001001138000001
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherPergamon-Elsevier Science Ltd
dc.relation.ispartofEngineering Failure Analysis
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_20241211
dc.subjectPLA
dc.subjectCaCO3 nanocomposite
dc.subjectANN
dc.subjectACO
dc.subjectMaterial extrusion parameters
dc.subjectNanoadditive concentration
dc.subjectFracture toughness
dc.titleExperimental study and hybrid optimization of material extrusion process parameters for enhancement of fracture resistance of biodegradable nanocomposites
dc.typeArticle

Dosyalar

Koleksiyon

WoS İndeksli Yayınlar Koleksiyonu
Scopus İndeksli Yayınlar Koleksiyonu