{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,3]],"date-time":"2026-04-03T00:13:25Z","timestamp":1775175205125,"version":"3.50.1"},"reference-count":51,"publisher":"SAGE Publications","issue":"8","license":[{"start":{"date-parts":[[2018,7,11]],"date-time":"2018-07-11T00:00:00Z","timestamp":1531267200000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["The Journal of Strain Analysis for Engineering Design"],"published-print":{"date-parts":[[2018,11]]},"abstract":"<jats:p> This work addresses the reconstruction of strain gradient fields at the wood growth ring scale from full-field deformation measurements provided by digital image correlation. Moreover, the spatial distribution of the earlywood and latewood radial modulus of elasticity is assessed. Meso-scale tensile tests are carried out on Pinus pinaster Ait. wooden specimens oriented in the radial\u2013tangential plane under quasi-static loading conditions. A parametric analysis of the two-dimensional digital image correlation extrinsic and intrinsic setting parameters is performed, in a balance between spatial resolution and resolution. It is shown that the parametric module is an effective way to quantitatively support the choice of digital image correlation parameters in the presence of the high deformation gradient fields generated by the structure\u2013property relationships at the scale of observation. Under the assumption of a uniaxial tensile stress state, the spatial distribution of the radial elastic modulus across the growth rings is obtained. It is observed that the ratio of the radial modulus of elasticity between latewood and earlywood tissues can vary significantly as a function of the digital image correlation parameters. It is pointed out, however, that a convergence value can be systematically established. Effectively, earlywood and latewood stress\u2013strain curves are obtained and elastic properties are determined assuming the converged digital image correlation setting parameters. <\/jats:p>","DOI":"10.1177\/0309324718786351","type":"journal-article","created":{"date-parts":[[2018,7,11]],"date-time":"2018-07-11T13:14:30Z","timestamp":1531314870000},"page":"566-574","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":35,"title":["On the identification of earlywood and latewood radial elastic modulus of <i>Pinus pinaster<\/i> by digital image correlation: A parametric analysis"],"prefix":"10.1177","volume":"53","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-9916-558X","authenticated-orcid":false,"given":"Jo\u00e3o Lu\u00eds","family":"Pereira","sequence":"first","affiliation":[{"name":"Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Tr\u00e1s-os-Montes and Alto Douro (UTAD), Vila Real, Portugal"},{"name":"DEMad and ESTG, Polytechnic Institute of Viseu, Viseu, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7836-4598","authenticated-orcid":false,"given":"Jos\u00e9","family":"Xavier","sequence":"additional","affiliation":[{"name":"Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Tr\u00e1s-os-Montes and Alto Douro (UTAD), Vila Real, Portugal"},{"name":"Laboratory of Optics and Experimental Mechanics (LOME), Institute of Science and Innovation in Mechanical and Industrial Engineering (INEGI), Porto, Portugal"},{"name":"Escola de Ci\u00eancias e Tecnologia, University of Tr\u00e1s-os-Montes and Alto Douro (UTAD), Vila Real, Portugal"}]},{"given":"Bahman","family":"Ghiassi","sequence":"additional","affiliation":[{"name":"Centre for Structural Engineering and Informatics, The University of Nottingham, Nottingham, UK"}]},{"given":"Jos\u00e9","family":"Lousada","sequence":"additional","affiliation":[{"name":"Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Tr\u00e1s-os-Montes and Alto Douro (UTAD), Vila Real, Portugal"}]},{"given":"Jos\u00e9","family":"Morais","sequence":"additional","affiliation":[{"name":"Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Tr\u00e1s-os-Montes and Alto Douro (UTAD), Vila Real, Portugal"},{"name":"Escola de Ci\u00eancias e Tecnologia, University of Tr\u00e1s-os-Montes and Alto Douro (UTAD), Vila Real, 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