INVESTIGADORES
FRANCUCCI Gaston Martin
artículos
Título:
Shear response of ultra-lightweight CFRP cores
Autor/es:
VITALE, JUAN PABLO; FRANCUCCI, GASTON; RAPP, HELMUT; STOCCHI, ARIEL
Revista:
COMPOSITE STRUCTURES
Editorial:
ELSEVIER SCI LTD
Referencias:
Lugar: Amsterdam; Año: 2020 vol. 238
ISSN:
0263-8223
Resumen:
In this work the shear performance of ultra-lightweight (ULW) carbon fiber reinforced polymer (CFRP) coreswith 3-dimensional (3D) geometries is analyzed. The cores are made from a machined CFRP laminate. Using theinterlocking method, CFRP sheets are assembled in order to obtain a square pattern. The density of all manufacturedcores is achieved below than 48 kgm−3. Through simple analytical mechanical models, it is possible topredict the failure behavior of the panels. Finite element analyses (FEA) are carried in order to contrast andvalidate the theoretical models. Good agreement among theoretical, finite element and experimental results isfound. The experimental results show that the controlling failure mechanisms are shear failure of the basematerial or debonding, also predicted successfully by the numerical and analytical approaches. Finally, the coresare compared favorably as well with other competing known materials.