{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,26]],"date-time":"2026-09-26T04:52:07Z","timestamp":1790398327211,"version":"4.1.0"},"reference-count":73,"publisher":"MDPI AG","issue":"19","license":[{"start":{"date-parts":[[2023,9,28]],"date-time":"2023-09-28T00:00:00Z","timestamp":1695859200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Polymers"],"abstract":"<jats:p>In this study, we successfully address a significant research and engineering gap by quantitatively assessing the impact of varying compressive loading rates on the mechanical behavior of four popular thermoplastic polymers in material-extrusion-based (MEX) 3D printing. Raw powders of polycarbonate (PC), polyethylene terephthalate glycol (PETG), polymethyl methacrylate (PMMA), and thermoplastic polyurethane (TPU) were processed through melt extrusion, and the filaments were used to 3D-print the test samples. For completeness, thermogravimetric analysis and a compressive test following the ASTM-D695 standard were conducted. Ultimately, the compressive strength and yield stress, the compressive modulus of elasticity and toughness, and the maximum compressive sensitivity index were thoroughly documented. Specimens were tested in strain rates from 1.3 mm\/min to 200 mm\/min. The compressive strength (40% for the PMMA) and stiffness (29% for the TPU) increased with the increase in the strain rate in all polymers tested. PC had the highest strain rate sensitivity. Significant variations in deformation and fracture modes were observed and thoroughly documented throughout this study. Our findings can be useful in industrial engineering as valued design optimization input parameters in various applications involving the above-mentioned polymeric materials.<\/jats:p>","DOI":"10.3390\/polym15193926","type":"journal-article","created":{"date-parts":[[2023,9,29]],"date-time":"2023-09-29T02:47:30Z","timestamp":1695955650000},"page":"3926","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":45,"title":["A Coherent Assessment of the Compressive Strain Rate Response of PC, PETG, PMMA, and TPU Thermoplastics in MEX Additive Manufacturing"],"prefix":"10.3390","volume":"15","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-1312-7898","authenticated-orcid":false,"given":"Markos","family":"Petousis","sequence":"first","affiliation":[{"name":"Department of Mechanical Engineering, Hellenic Mediterranean University, 71410 Heraklion, Greece"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ioannis","family":"Ntintakis","sequence":"additional","affiliation":[{"name":"Department of Mechanical Engineering, Hellenic Mediterranean University, 71410 Heraklion, Greece"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4515-0259","authenticated-orcid":false,"given":"Constantine","family":"David","sequence":"additional","affiliation":[{"name":"Department of Mechanical Engineering, International Hellenic University, Serres Campus, 62124 Serres, Greece"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2039-6535","authenticated-orcid":false,"given":"Dimitrios","family":"Sagris","sequence":"additional","affiliation":[{"name":"Department of Mechanical Engineering, International Hellenic University, Serres Campus, 62124 Serres, Greece"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Nektarios K.","family":"Nasikas","sequence":"additional","affiliation":[{"name":"Division of Mathematics and Engineering Sciences, Department of Military Sciences, Hellenic Army Academy, 16673 Vari, Greece"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3573-5405","authenticated-orcid":false,"given":"Apostolos","family":"Korlos","sequence":"additional","affiliation":[{"name":"Department of Industrial Engineering and Management, International Hellenic University, 14th km Thessaloniki\u2014N. Moudania, Thermi, 57001 Thessaloniki, Greece"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Amalia","family":"Moutsopoulou","sequence":"additional","affiliation":[{"name":"Department of Mechanical Engineering, Hellenic Mediterranean University, 71410 Heraklion, Greece"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Nectarios","family":"Vidakis","sequence":"additional","affiliation":[{"name":"Department of Mechanical Engineering, Hellenic Mediterranean University, 71410 Heraklion, Greece"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2023,9,28]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Sepasgozar, S.M.E., Shi, A., Yang, L., Shirowzhan, S., and Edwards, D.J. (2020). Additive Manufacturing Applications for Industry 4.0: A Systematic Critical Review. 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