Experimental and Numerical Investigation of Mechanical Properties of Hyper Polylactic Acid (HPLA).

Mariana Domnica Stanciu, Horațiu Drăghicescu Teodorescu, Ionuț Teșulă, Sergiu Valeriu Georgescu, Florin Dinulică

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Article in Polymers, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 · Who and what money

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5 authors.

Mariana Domnica StanciuDepartment of Mechanical Engineering, Transilvania University of Brașov, B-dul Eroilor 29, 500036 Brașov, Romania.ORCID 0000-0001-6414-9427

Horațiu Drăghicescu TeodorescuDepartment of Mechanical Engineering, Transilvania University of Brașov, B-dul Eroilor 29, 500036 Brașov, Romania.ORCID 0000-0003-3818-5461

Ionuț TeșulăDepartment of Mechanical Engineering, Transilvania University of Brașov, B-dul Eroilor 29, 500036 Brașov, Romania.

Sergiu Valeriu GeorgescuDepartment of Wood Processing and Design of Wood Products, Transilvania University of Brașov, B-dul Eroilor 29, 500036 Brașov, Romania.ORCID 0000-0002-3660-0265

Florin DinulicăFaculty of Silviculture and Forest Engineering, Transilvania University of Brașov, B-dul Eroilor 29, 500036 Brașov, Romania.ORCID 0000-0003-0596-3562

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Polylactic acid (PLA) is one of the most widely used materials for fused filament fabrication (FFF) or fused deposition modeling (FDM), being recognized for its low carbon footprint, relatively low costs and good mechanical properties. Improving the mechanical and technological properties of PLA with various additives has led to the production of different types of PLA-based filaments, such as hyper PLA (HPLA), PLA, PLA+ and PLA Lite. Studies on the mechanical properties of HPLA are scarce; therefore, the objective of this paper was to determine the mechanical properties of 3D-printed HPLA under tensile and bending stress conditions and to obtain numerical models that depend on the raster pattern orientation. The principal component analysis (PCA) reveals very different results for bending compared with tension, with outcomes varying significantly depending on the orientation of the raster angle.

Indexed as

finite element analysishyper polylactic acidmechanical propertiesraster angle orientation

Identifiers

PMID41829322

DOI10.3390/polym18050624

PMCPMC12987187

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