{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,27]],"date-time":"2026-07-27T22:16:11Z","timestamp":1785190571890,"version":"3.55.0"},"reference-count":44,"publisher":"MDPI AG","issue":"19","license":[{"start":{"date-parts":[[2024,10,4]],"date-time":"2024-10-04T00:00:00Z","timestamp":1728000000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"U.S. Army Engineer Research and Development Center under Work Unit \u201cDesign-by-analysis Methods for Large Scale Additive Manufacturing\u201d"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Polymers"],"abstract":"<jats:p>In large format additive manufacturing (LFAM), a keener understanding of the relationship between the manufacture method and material temperature dependency is needed for the production of large polymer parts. Statistical analyses supported by material properties and a meso-structural understanding of LFAM are applied to elucidate tensile data trends. The data from LFAM polyethylene terephthalate glycol with 30% carbon fiber (CF) (PETG CF30%) panels (diagonal, horizontal, and vertical in the x-y print plane) and injection-molded specimens tensile tested at six different testing temperatures (room temperature, 40 \u00b0C, 50 \u00b0C, 60 \u00b0C, 70 \u00b0C, and 80 \u00b0C) were used for statistical analyses. A standard deviation, a coefficient of variation, and a two-way and one-way analyses of variance (ANOVA) were conducted. The manufacturing method (44.2%) and temperature (47.4%) have a strong effect on the ultimate tensile strength, in which temperature (82.6%) dominates Young's modulus. To explain the difference between the ultimate tensile strength of vertical, diagonal, and horizontal specimens at room temperature, a visual inspection of the specimen failure was conducted and the maximum stress at the crack tip was calculated analytically. The decreased strength in the diagonal specimens resulted from the reliance on interlaminar adhesion strength. Future work will consider the effect of the void space variation on tensile strength variance.<\/jats:p>","DOI":"10.3390\/polym16192812","type":"journal-article","created":{"date-parts":[[2024,10,4]],"date-time":"2024-10-04T06:00:57Z","timestamp":1728021657000},"page":"2812","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":6,"title":["Statistical Analysis of Large Format Additively Manufactured Polyethylene Terephthalate Glycol with 30% Carbon Fiber Tensile Data"],"prefix":"10.3390","volume":"16","author":[{"given":"Katie A.","family":"Martin","sequence":"first","affiliation":[{"name":"Geotechnical and Structures Laboratory (GSL), US Army Corps of Engineers (USACE) Engineer Research and Development Center (ERDC), 3909 Halls Ferry Rd., Vicksburg, MS 39180, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jedadiah F.","family":"Burroughs","sequence":"additional","affiliation":[{"name":"Geotechnical and Structures Laboratory (GSL), US Army Corps of Engineers (USACE) Engineer Research and Development Center (ERDC), 3909 Halls Ferry Rd., Vicksburg, MS 39180, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3466-7255","authenticated-orcid":false,"given":"Guillermo A.","family":"Riveros","sequence":"additional","affiliation":[{"name":"Information Technology Laboratory (ITL), US Army Corps of Engineers (USACE) Engineer Research and Development Center (ERDC), 3909 Halls Ferry Rd., Vicksburg, MS 39180, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2024,10,4]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"1257","DOI":"10.1007\/s40964-023-00397-9","article-title":"Large-Format Additive Manufacturing of Polymer Extrusion-Based Deposition Systems: Review and Applications","volume":"8","author":"Vicente","year":"2023","journal-title":"Prog. Addit. Manuf."},{"key":"ref_2","unstructured":"ISO (2014). Additive Manufacturing: General Principles Part 3: Main Characteristics and Corresponding Test Methods, ISO."},{"key":"ref_3","doi-asserted-by":"crossref","unstructured":"Spina, R. (2019). Performance Analysis of Colored PLA Products with a Fused Filament Fabrication Process. Polymers, 11.","DOI":"10.3390\/polym11121984"},{"key":"ref_4","unstructured":"Brengelman, L. (2020). Machinery\u2019s Handbook, Industrial Press, Inc.. [31st ed.]."},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"205","DOI":"10.1080\/19475411.2019.1591541","article-title":"Developments in 4D-Printing: A Review on Current Smart Materials, Technologies, and Applications","volume":"10","author":"Zhang","year":"2019","journal-title":"Int. J. Smart Nano Mater."},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"793","DOI":"10.1108\/RPJ-05-2018-0126","article-title":"Large-Format Fused Deposition Additive Manufacturing: A Review","volume":"26","author":"Nieto","year":"2020","journal-title":"Rapid Prototyp. J."},{"key":"ref_7","first-page":"3679","article-title":"Large-Scale 3D Printers for Additive Manufacturing Design Considerations and Challenges","volume":"104","author":"Shah","year":"2019","journal-title":"Int. J. Adv. Technol."},{"key":"ref_8","doi-asserted-by":"crossref","unstructured":"Quintana, J.L.C., Slattery, L., Pinkham, J., Keaton, J., Lopez-Anido, R.A., and Sharp, K. (2022). Effects of Fiber Orientation on the Coefficient of Thermal Expansion of Fiber-Filled Polymer Systems in Large Format Polymer Extrusion-Based Additive Manufacturing. Materials, 15.","DOI":"10.3390\/ma15082764"},{"key":"ref_9","first-page":"55","article-title":"Evaluation and Comparison of the Degradability and Compressive and Tensile Properties of 3D Printing Polymeric Materials: PLA, PETG, PC, and ASA","volume":"13","year":"2023","journal-title":"MRS Commun."},{"key":"ref_10","first-page":"45","article-title":"PETG: Applications in Modern Medicine","volume":"5","author":"Yan","year":"2024","journal-title":"Eng. Regen."},{"key":"ref_11","doi-asserted-by":"crossref","unstructured":"Blok, L.G., Longana, M.L., and Woods, B.K.S. (2020). Fabrication and Characterisation of Aligned Discontinuous Carbon Fibre Reinforced Thermoplastics as Feedstock Material for Fused Filament Fabrication. Materials, 13.","DOI":"10.3390\/ma13204671"},{"key":"ref_12","doi-asserted-by":"crossref","unstructured":"Kov\u00e1\u010dov\u00e1, M., Kozakovi\u010dov\u00e1, J., Proch\u00e1zka, M., Janigov\u00e1, I., Vysopal, M., \u010cerni\u010dkov\u00e1, I., Kraj\u010dovi\u010d, J., and \u0160pitalsk\u00fd, Z. (2020). Novel Hybrid PETG Composites for 3D Printing. Appl. Sci., 10.","DOI":"10.3390\/app10093062"},{"key":"ref_13","unstructured":"Callister, W.D.J., and Rethwisch, D.G. (2014). Material Science and Engineering: An Introduction, John Wiley & Sons, Inc.. [9th ed.]."},{"key":"ref_14","doi-asserted-by":"crossref","unstructured":"Beckman, I.P., Lozano, C., Freeman, E., and Riveros, G. (2021). Fiber Selection for Reinforced Additive Manufacturing. Polymers, 13.","DOI":"10.3390\/polym13142231"},{"key":"ref_15","first-page":"103908","article-title":"Large Format Additive Manufacturing of Polyethylene Terephthalate (PET) by Material Extrusion","volume":"79","author":"Pintos","year":"2024","journal-title":"Addit. Manuf."},{"key":"ref_16","doi-asserted-by":"crossref","unstructured":"Slattery, L.K., McClelland, Z.B., and Hess, S.T. (2024). Process\u2013Structure\u2013Property Relationship Development in Large-Format Additive Manufacturing: Fiber Alignment and Ultimate Tensile Strength. Materials, 17.","DOI":"10.3390\/ma17071526"},{"key":"ref_17","doi-asserted-by":"crossref","unstructured":"Pintos, P.B., S\u00e1nchez, D.M., Delgado, F.J., de Le\u00f3n, A.S., and Molina, S.I. (2024). Influence of the Carbon Fiber Length Distribution in Polymer Matrix Composites for Large Format Additive Manufacturing via Fused Granular Fabrication. Polymers, 16.","DOI":"10.3390\/polym16010060"},{"key":"ref_18","doi-asserted-by":"crossref","first-page":"4860","DOI":"10.1016\/j.jmrt.2021.10.108","article-title":"A Review on Voids of 3D Printed Parts by Fused Filament Fabrication _ Elsevier Enhanced Reader","volume":"15","author":"Tao","year":"2021","journal-title":"J. Mater. Res. Technol."},{"key":"ref_19","first-page":"103538","article-title":"Introducing a New Optimization Parameter Based on Diffusion, Coalescence and Crystallization to Maximize the Tensile Properties of Additive Manufacturing Parts","volume":"69","author":"Placet","year":"2023","journal-title":"Addit. Manuf."},{"key":"ref_20","first-page":"176","article-title":"An Investigation into 3D Printing of Fibre Reinforced Thermoplastic Composites","volume":"22","author":"Blok","year":"2018","journal-title":"Addit. Manuf."},{"key":"ref_21","doi-asserted-by":"crossref","first-page":"376","DOI":"10.1016\/j.polymer.2017.06.051","article-title":"Disentanglement Effects on Welding Behaviour of Polymer Melts during the Fused-Filament-Fabrication Method for Additive Manufacturing","volume":"123","author":"McIlroy","year":"2017","journal-title":"Polymer"},{"key":"ref_22","doi-asserted-by":"crossref","first-page":"3607","DOI":"10.1007\/s00170-018-2148-x","article-title":"The Effects of Voids on Structural Properties of Fused Deposition Modelled Parts: A Probabilistic Approach","volume":"97","author":"Tronvoll","year":"2018","journal-title":"Int. J. Adv. Manuf. Technol."},{"key":"ref_23","doi-asserted-by":"crossref","first-page":"651","DOI":"10.1016\/j.jmapro.2022.06.026","article-title":"Eliminating Voids and Reducing Mechanical Anisotropy in Fused Filament Fabrication Parts by Adjusting the Filament Extrusion Rate","volume":"80","author":"Ghorbani","year":"2022","journal-title":"J. Manuf. Process."},{"key":"ref_24","doi-asserted-by":"crossref","first-page":"141","DOI":"10.1080\/17452759.2014.913400","article-title":"Part Strength Evolution with Bonding between Filaments in Fused Deposition Modelling: This Paper Studies How Coalescence of Filaments Contributes to the Strength of Final FDM Part","volume":"9","author":"Gurrala","year":"2014","journal-title":"Virtual Phys. Prototyp."},{"key":"ref_25","doi-asserted-by":"crossref","unstructured":"Martin, K.A., Riveros, G.A., Thornell, T.L., McClelland, Z.B., Freeman, E.L., and Stinson, J.T. (2024). Thermomechanical Material Characterization of Polyethylene Terephthalate Glycol with 30% Carbon Fiber for Large-Format Additive Manufacturing of Polymer Structures. Polymers, 16.","DOI":"10.3390\/polym16131913"},{"key":"ref_26","doi-asserted-by":"crossref","first-page":"381","DOI":"10.1557\/s43579-022-00188-3","article-title":"On the Optimized 3D Printing and Post-Processing of PETG Materials","volume":"12","author":"Holcomb","year":"2022","journal-title":"MRS Commun."},{"key":"ref_27","first-page":"1","article-title":"Fiber Orientation of Short Fiber Reinforced Injection Molded Thermoplastic Composites: A Review","volume":"6","author":"Zainudin","year":"2002","journal-title":"Artic. J. Inject. Molding Technol."},{"key":"ref_28","doi-asserted-by":"crossref","first-page":"2034","DOI":"10.1002\/1521-3773(20020617)41:12<2034::AID-ANIE2034>3.0.CO;2-M","article-title":"Shape-Memory Polymers","volume":"41","author":"Lendlein","year":"2002","journal-title":"Angew. Chem. Int. Ed."},{"key":"ref_29","doi-asserted-by":"crossref","unstructured":"Yahia, L. (2015). Shape Memory Polymers for Biomedical Applications, Elsevier.","DOI":"10.1016\/B978-0-85709-698-2.00001-5"},{"key":"ref_30","unstructured":"Crawford, R.J. (1998). Plastics Engineering, Elsevier. [3rd ed.]."},{"key":"ref_31","doi-asserted-by":"crossref","first-page":"376","DOI":"10.1016\/j.polymertesting.2004.10.002","article-title":"A Technique for Determining Fiber Content in FRP by Thermogravimetric Analyzer","volume":"24","author":"Moon","year":"2005","journal-title":"Polym. Test."},{"key":"ref_32","doi-asserted-by":"crossref","first-page":"218","DOI":"10.1016\/j.compositesb.2016.09.028","article-title":"Using Thermogravimetric Analysis to Determine Carbon Fiber Weight Percentage of Fiber-Reinforced Plastics","volume":"106","author":"Kaiser","year":"2016","journal-title":"Compos. Part B"},{"key":"ref_33","doi-asserted-by":"crossref","first-page":"1021","DOI":"10.1007\/s11665-021-06262-6","article-title":"Impact of Carbon Fiber Reinforcement on Mechanical and Tribological Behavior of 3D-Printed Polyethylene Terephthalate Glycol Polymer Composites\u2014An Experimental Investigation","volume":"31","author":"Kichloo","year":"2022","journal-title":"J. Mater. Eng. Perform."},{"key":"ref_34","doi-asserted-by":"crossref","first-page":"883","DOI":"10.1007\/s11340-018-00467-y","article-title":"Effect of Filling Pattern on the Tensile and Flexural Mechanical Properties of FDM 3D Printed Products","volume":"59","author":"Akhoundi","year":"2019","journal-title":"Exp. Mech."},{"key":"ref_35","unstructured":"Santana, L., Alves, J.L., da Costa Sabino Netto, A., and Merlini, C. (2018). A Comparative Study between PETG and PLA for 3D Printing through Thermal, Chemical and Mechanical Characterization. Rev. Mater., 23."},{"key":"ref_36","doi-asserted-by":"crossref","unstructured":"Hsueh, M.H., Lai, C.J., Wang, S.H., Zeng, Y.S., Hsieh, C.H., Pan, C.Y., and Huang, W.C. (2021). Effect of Printing Parameters on the Thermal and Mechanical Properties of 3d-Printed Pla and Petg, Using Fused Deposition Modeling. Polymers, 13.","DOI":"10.3390\/polym13111758"},{"key":"ref_37","doi-asserted-by":"crossref","first-page":"104262","DOI":"10.1016\/j.mtcomm.2022.104262","article-title":"The Effect of 3D Printing Parameters on the Shape Memory Properties of 4D Printed Polylactic Acid Circular Disks: An Experimental Investigation and Parameters Optimization","volume":"33","author":"Tezerjani","year":"2022","journal-title":"Mater. Today Commun."},{"key":"ref_38","doi-asserted-by":"crossref","unstructured":"Elkaseer, A., Schneider, S., and Scholz, S.G. (2020). Experiment-Based Process Modeling and Optimization for High-Quality and Resource-Efficient FFF 3D Printing. Appl. Sci., 10.","DOI":"10.3390\/app10082899"},{"key":"ref_39","doi-asserted-by":"crossref","first-page":"164","DOI":"10.1016\/j.mfglet.2024.04.002","article-title":"Impact of Deposition Time per Layer in Large Format Additive Manufacturing with Glass Fiber Reinforced ABS","volume":"40","year":"2024","journal-title":"Manuf. Lett."},{"key":"ref_40","doi-asserted-by":"crossref","first-page":"108577","DOI":"10.1016\/j.matdes.2020.108577","article-title":"Development of Carbon Fiber Acrylonitrile Styrene Acrylate Composite for Large Format Additive Manufacturing","volume":"191","author":"Delgado","year":"2020","journal-title":"Mater. Des."},{"key":"ref_41","unstructured":"(2014). Standard Test Method for Tensile Properties of Plastics (Standard No. D638-14)."},{"key":"ref_42","doi-asserted-by":"crossref","unstructured":"Hiemenz, P.C., and Lodge, T.P. (2007). Polymer Chemistry, CRC Press. [2nd ed.].","DOI":"10.1201\/9781420018271"},{"key":"ref_43","first-page":"44","article-title":"Mechanical Characterization of 3D-Printed Polymers","volume":"20","author":"Dizon","year":"2018","journal-title":"Addit. Manuf."},{"key":"ref_44","unstructured":"Budynas, R.G., and Nisbett, J.K. (2020). Shigley\u2019s Mechanical Engineering Design, McGraw-Hill Education. [11th ed.]."}],"container-title":["Polymers"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/2073-4360\/16\/19\/2812\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,10]],"date-time":"2025-10-10T16:10:31Z","timestamp":1760112631000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/2073-4360\/16\/19\/2812"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2024,10,4]]},"references-count":44,"journal-issue":{"issue":"19","published-online":{"date-parts":[[2024,10]]}},"alternative-id":["polym16192812"],"URL":"https:\/\/doi.org\/10.3390\/polym16192812","relation":{},"ISSN":["2073-4360"],"issn-type":[{"value":"2073-4360","type":"electronic"}],"subject":[],"published":{"date-parts":[[2024,10,4]]}}}