Parameters identification of polymer concrete using a fracture mechanics test method and full-field measurements |
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Authors: | L.C.S. Nunes J.M.L. Reis H.S. da Costa Mattos |
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Affiliation: | Laboratory of Theoretical and Applied Mechanics, LMTA, Graduate Program of Mechanical Engineering, PGMEC, Universidade Federal Fluminense, UFF, Rua Passo da Patria 156, 24210-240 Niterói, RJ, Brazil |
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Abstract: | In the present work it is proposed an easy-to-implement alternative procedure to identify not only the fracture properties but also the mean elasticity modulus E and Poisson’s ratio ν of arbitrary polymer concretes. Only one test using a standard single-edge-cracked three-point bend specimen is necessary. Digital image correlation (DIC) method is used to obtain the full-field displacement close to the crack tip. The mean properties (E, ν) are determined by fitting analytical expressions for the displacement field to the experimental data. The adequacy of the proposed methodology is checked by comparing the material parameters obtained using the proposed procedure with the ones obtained through standard procedures. |
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Keywords: | Polymer concrete Parameter identification Full-field displacement measurements Fracture mechanics |
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