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The PLA model

Alexander von Rhein, Sven Apel, Christian Kästner, Thomas Thüm, Ina Schaefer
2013 Proceedings of the Seventh International Workshop on Variability Modelling of Software-intensive Systems - VaMoS '13  
We present the Product-Line-Analysis model, a formal model for the classification and comparison of existing analyses, including traditional and variability-aware analyses, and lay a foundation for formulating  ...  As a proof of concept, we discuss different examples of analyses in the light of our model, and demonstrate its benefits for systematic comparison and exploration of product-line analyses.  ...  We thank Sergiy Kolesnikov for fruitful discussions on the formal model and the anonymous reviewers for their helpful comments.  ... 
doi:10.1145/2430502.2430522 dblp:conf/vamos/RheinAKTS13 fatcat:ofjxgun32jdj7pd2c55dplzvuy

Modelling the Mechanical and Strain Recovery Behaviour of Partially Crystalline PLA

John Sweeney, Paul Spencer, Karthik Nair, Phil Coates
2019 Polymers  
Using published data on the mechanical properties of the crystals, finite element modelling was used to determine the effect of the crystal phase on the overall mechanical behaviour of the material, which  ...  This is a study of the modelling and prediction of strain recovery in a polylactide.  ...  [39] for combined results of PLLA, PDLLA and PLDLLA. Additionally, the value of α can be obtained from the intercept of the fitted line in Figure 8 to give the value α = 0.00752 s −1 .  ... 
doi:10.3390/polym11081342 pmid:31412588 pmcid:PMC6723906 fatcat:rlwjtgct3jalhelxk363ecv354

Tensile and Compressive Behavior in the Experimental Tests for PLA Specimens Produced via Fused Deposition Modelling Technique

Salvatore Brischetto, Roberto Torre
2020 Journal of Composites Science  
A capability analysis is also conducted on the mechanical properties (obtained from the experimental tests) in order to calculate acceptable limits useful for possible structural analyses.  ...  A statistical analysis is performed on the geometrical data of the specimens to evaluate the machine process employed for the 3D printing.  ...  Conflicts of Interest: The authors declare no conflict of interest.  ... 
doi:10.3390/jcs4030140 fatcat:i4rp7ygo4faidjtnfe5fmk3rle

Improving the Fault Tolerance of Nanometric PLA Designs

Federico Angiolini, M. Haykel Ben Jamaa, David Atienza, Luca Benini, Giovanni de Micheli
2007 2007 Design, Automation & Test in Europe Conference & Exhibition  
In this paper, we show a design flow, based on software mapping algorithms, to improve the yield of nanometric Programmable Logic Arrays (PLAs).  ...  We show that, compared to a baseline policy of wire replication, we achieve equal or better yields (8% over a set of designs) depending on the underlying defect assumptions.  ...  When testing over a suite of benchmark PLAs, injecting faults in a Monte Carlo fashion, our analyses show yields of up to 96%.  ... 
doi:10.1109/date.2007.364654 dblp:conf/date/AngioliniJABM07 fatcat:xsdl2uuoard6pmvlfxrnxpo3me

Experimental study and modeling the tensile strength of 3D‐printed aluminium polylactic acid (PLA) parts using artificial neural networks

Chockalingam Palanisamy, Hong Kiat Aaron Tay Hong Kiat
2021 F1000Research  
The processing parameters of 3D printers have a significant impact on the quality of 3D printed parts.  ...  High quality 3D printed products are in high demand, resulting in an increase in the production of 3D printed parts with precise tolerances, improved surface roughness, and overall durability.  ...  was developed to predict the tensile strength of newer combinations of input parameters, and a validating test carried out on the model.  ... 
doi:10.12688/f1000research.73796.1 fatcat:u3eidzmya5asnicvowpablha2q

Measurements of the mechanical response of unidirectional 3D-printed PLA

Y. Song, Y. Li, W. Song, K. Yee, K.-Y. Lee, V.L. Tagarielli
2017 Materials & design  
thermal cycle on the molecular structure and the mechanical response of the material were assessed.  ...  The response of the unidirectional, 3D-printed material was compared to that of homogeneous injection-moulded PLA, showing that manufacturing by 3D-printing improves toughness; the effects of an annealing  ...  ACKNOWLEDGEMENTS We thank the Department of Aeronautics of Imperial College London for funding this research. We acknowledge the great support from Mr J. Meggyesi, Mr K. Wolfstenholme, Mr J.  ... 
doi:10.1016/j.matdes.2017.03.051 fatcat:clgl5x4pejborkavu5fpv7axz4

Mechanical behaviour׳s evolution of a PLA- b -PEG- b -PLA triblock copolymer during hydrolytic degradation

Q. Breche, G. Chagnon, G. Machado, E. Girard, B. Nottelet, X. Garric, D. Favier
2016 Journal of The Mechanical Behavior of Biomedical Materials  
PLA-b-PEG-b-PLA is a biodegradable triblock copolymer that presents both the mechanical properties of PLA and the hydrophilicity of PEG.  ...  The viscoelastic behaviour of the material is studied during the degradation. Finally, the mechanical behaviour is modelled with a linear viscoelastic model.  ...  The interest of the association of PLA and PEG is that it combines the mechanical properties of PLA and the hydrophilicity of PEG.  ... 
doi:10.1016/j.jmbbm.2016.02.015 pmid:26919565 fatcat:brap4lpr45gmtb55pepixhlby4

MAD+. Introducing Misconceptions in the Temporal Analysis of the Mathematical Modelling Process of a Fermi Problem

Marta Pla-Castells, Carmen Melchor, Gisela Chaparro
2021 Education Sciences  
Our study is based on a recent categorisation of students' mistakes, together with the creation of a new representation tool, called MAD+, that can combine all this information.  ...  This work describes how the combination of the mistakes committed by a group of pre-service teachers when solving a Fermi problem, with the representation of the temporal analysis of their resolutions,  ...  The combination of the mistake information together with the MAD diagrams, to build the MAD+ diagrams, makes it possible to efficiently analyse the process of solving modelling activities and, in particular  ... 
doi:10.3390/educsci11110747 fatcat:sfahqhgs2jeurdkfndtrquxs2i

The Osteogenic and Tenogenic Differentiation Potential of C3H10T1/2 (Mesenchymal Stem Cell Model) Cultured on PCL/PLA Electrospun Scaffolds in the Absence of Specific Differentiation Medium

Timothée Baudequin, Ludovic Gaut, Marc Mueller, Angela Huepkes, Birgit Glasmacher, Delphine Duprez, Fahmi Bedoui, Cécile Legallais
2017 Materials  
Conflicts of Interest: The authors declare no conflicts of interest.  ...  This project was cofinanced by the European Union and the European Regional Development Fund. This work was carried out and funded in the framework of the Labex MS2T.  ...  Polymer solutions and fiber structures were chosen to analyze the respective effects of the production parameters and their combinations.  ... 
doi:10.3390/ma10121387 pmid:29207566 pmcid:PMC5744322 fatcat:lg2j4uj4nzbsflxetzoahp72em

Investigating the Influence of Material Extrusion Rates and Line Widths on FFF-Printed Graphene-Enhanced PLA

Javaid Butt, Raghunath Bhaskar, Vahaj Mohaghegh
2022 Journal of Manufacturing and Materials Processing  
0.4 mm line width) on most desktop 3D printers and identifying the optimal combination to achieve desired properties using the FFF process.  ...  The study analyses the influence of these two processing parameters on mass, dimensional accuracy, surface texture, and mechanical properties of GPLA specimens.  ...  Data Availability Statement: The data used in this research work can be made available upon request. Conflicts of Interest: The authors declare no conflict of interest.  ... 
doi:10.3390/jmmp6030057 fatcat:h56rylm75zagplikxis5efg2ji

Comparison between the Test and Simulation Results for PLA Structures 3D Printed, Bending Stressed

Dorin Catana, Mihai-Alin Pop, Denisa-Iulia Brus
2021 Molecules  
The paper presents a comparison between the results of the bending tests and those of the simulation of the same type of stress applied on 3D-printed PLA and PLA–glass structures.  ...  The additive manufacturing process is one of the technical domains that has had a sustained development in recent decades.  ...  Conflicts of Interest: The authors declare no conflict of interest. Sample Availability: Samples of the compounds are available from the authors.  ... 
doi:10.3390/molecules26113325 fatcat:fk3opghcmfcszk7i4p7zxsk7ea

The influence of stiffener geometry on flexural properties of 3D printed polylactic acid (PLA) beams

Silas Z. Gebrehiwot, E. L. Leonardo, J. N. Eickhoff, L. Rechenberg
2020 Progress in Additive Manufacturing  
We used finite element analyses (FEA) on Abaqus to study flexural properties of additive manufactured beams using polylactic acid (PLA) polymer.  ...  The force-deflection data from the flexural tests are used to determine the area moments of inertia of the beams.  ...  Acknowledgements The authors acknowledge the Mechanical and Sustainability Engineering programme at Arcada University of Applied  ... 
doi:10.1007/s40964-020-00146-2 fatcat:7mzvpz5d2fe4bmobylce7aekpu

The Influence of Manufacturing Parameters on the Mechanical Behaviour of PLA and ABS Pieces Manufactured by FDM: A Comparative Analysis

Adrián Rodríguez-Panes, Juan Claver, Ana Camacho
2018 Materials  
The aim of this study is to compare the effect of layer height, infill density, and layer orientation on the mechanical performance of PLA and ABS test specimens.  ...  In general, the infill percentage is the manufacturing parameter of greatest influence on the results, although the effect is more noticeable in PLA than in ABS.  ...  The funders had no role in the design of the study; in the collection, analyses, or interpretation of data; in the writing of the manuscript, and in the decision to publish the results.  ... 
doi:10.3390/ma11081333 pmid:30071663 fatcat:etmfuyql2bhwzkccixjmmedb4i

Analysis of the in vitro degradation and the in vivo tissue response to bi-layered 3D-printed scaffolds combining PLA and biphasic PLA/bioglass components – Guidance of the inflammatory response as basis for osteochondral regeneration

Mike Barbeck, Tiziano Serra, Patrick Booms, Sanja Stojanovic, Stevo Najman, Elisabeth Engel, Robert Sader, Charles James Kirkpatrick, Melba Navarro, Shahram Ghanaati
2017 Bioactive Materials  
The aim of the present study was the in vitro and in vivo analysis of a bi-layered 3D-printed scaffold combining a PLA layer and a biphasic PLA/bioglass G5 layer for regeneration of osteochondral defects  ...  The in vivo study focused on analysis of the tissue reactions and differences in the implant bed vascularization using an established subcutaneous implantation model in CD-1 mice and established histological  ...  Acknowledgements We thank the Spanish MINECO for supporting the project MAT2012-38793 and for funding MN through the Ram on y Cajal program and TS through the "Personal T ecnico de Apoyo" subprogram.  ... 
doi:10.1016/j.bioactmat.2017.06.001 pmid:29744431 pmcid:PMC5935508 fatcat:344mg5lxdref3ow54ff3o6vlt4

Effect of temperature on the mechanical properties of 3D-printed PLA tensile specimens

Marzio Grasso, Lyes Azzouz, Paula Ruiz-Hincapie, Mauro Zarrelli, Guogang Ren
2018 Rapid prototyping journal  
2018) Effect of temperature on the mechanical properties of 3D-printed PLA tensile specimens.  ...  There is potential for further analyses of the thermomechanical properties of 42 43 FDM parts using finite element analysis methods to model the material properties based on the , O. S., A. F.  ...  In Table 1 PLA filaments, both plain and extruded, were tested by using a Dynamic Mechanical Analyser, 16 17 model Q800 DMA (TA Instruments Italy), equipped with a fibre tension clamp.  ... 
doi:10.1108/rpj-04-2017-0055 fatcat:sbogpyx2czdz7namcaruqrdsuq
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