{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,24]],"date-time":"2026-10-24T01:44:31Z","timestamp":1792806271578,"version":"4.5.0"},"reference-count":42,"publisher":"MDPI AG","issue":"4","license":[{"start":{"date-parts":[[2023,2,9]],"date-time":"2023-02-09T00:00:00Z","timestamp":1675900800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"\u201cGheorghe Asachi\u201d Technical University of Iasi, Romania","id":[{"id":"https:\/\/ror.org\/014zxnz40","id-type":"ROR","asserted-by":"crossref"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Polymers"],"abstract":"<jats:p>Due to its physical and mechanical properties, glass-fiber-reinforced polymer (GFRP) is utilized in wind turbine blades. The loads given to the blades of wind turbines, particularly those operating offshore, are relatively significant. In addition to the typical static stresses, there are also large dynamic stresses, which are mostly induced by wind-direction changes. When the maximum stresses resulting from fatigue loading change direction, the reinforcing directions of the material used to manufacture the wind turbine blades must also be considered. In this study, sandwich-reinforced GFRP materials were subjected to tensile testing in three directions. The parameters of the stress\u2013strain curve were identified and identified based on the three orientations in which samples were cut from the original plate. Strain gauge sensors were utilized to establish the three-dimensional elasticity of a material. After a fracture was created by tensile stress, SEM images were taken to highlight the fracture\u2019s characteristics. Using finite element analyses, the stress\u2013strain directions were determined. In accordance to the three orientations and the various reinforcements used, it was established that the wind turbine blades are operational.<\/jats:p>","DOI":"10.3390\/polym15040861","type":"journal-article","created":{"date-parts":[[2023,2,10]],"date-time":"2023-02-10T05:18:35Z","timestamp":1676006315000},"page":"861","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":18,"title":["Analysis of the Effect of Fiber Orientation on Mechanical and Elastic Characteristics at Axial Stresses of GFRP Used in Wind Turbine Blades"],"prefix":"10.3390","volume":"15","author":[{"given":"Ciprian Ionu\u021b","family":"Mor\u0103ra\u0219","sequence":"first","affiliation":[{"name":"Mechanical Engineering, Mechatronics and Robotics Department, Mechanical Engineering Faculty, \u201cGheorghe Asachi\u201d Technical University of Iasi, 700050 Iasi, Romania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Viorel","family":"Goan\u021b\u0103","sequence":"additional","affiliation":[{"name":"Mechanical Engineering, Mechatronics and Robotics Department, Mechanical Engineering Faculty, \u201cGheorghe Asachi\u201d Technical University of Iasi, 700050 Iasi, Romania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Dorin","family":"Husaru","sequence":"additional","affiliation":[{"name":"Fluid Mechanics, Fluid Machines and Fluid Power Systems Department, Machine Manufacturing and Industrial Management Faculty, \u201cGheorghe Asachi\u201d Technical University of Iasi, 700050 Iasi, Romania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0817-3523","authenticated-orcid":false,"given":"Bogdan","family":"Istrate","sequence":"additional","affiliation":[{"name":"Mechanical Engineering, Mechatronics and Robotics Department, Mechanical Engineering Faculty, \u201cGheorghe Asachi\u201d Technical University of Iasi, 700050 Iasi, Romania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Paul Doru","family":"B\u00e2rs\u0103nescu","sequence":"additional","affiliation":[{"name":"Mechanical Engineering, Mechatronics and Robotics Department, Mechanical Engineering Faculty, \u201cGheorghe Asachi\u201d Technical University of Iasi, 700050 Iasi, Romania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3878-9129","authenticated-orcid":false,"given":"Corneliu","family":"Munteanu","sequence":"additional","affiliation":[{"name":"Mechanical Engineering, Mechatronics and Robotics Department, Mechanical Engineering Faculty, \u201cGheorghe Asachi\u201d Technical University of Iasi, 700050 Iasi, Romania"},{"name":"Technical Sciences Academy of Romania, 26 Dacia Blvd., 030167 Bucharest, Romania"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2023,2,9]]},"reference":[{"key":"ref_1","unstructured":"(2023, January 09). 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