Amorphous polymers, such as epoxy resins, are commonly used in the realization of adhesively bonded joints. In this paper an evaluation of mode I fracture toughness of bonded joints is presented. Moreover, an identification of cohesive zone model parameters via Rice's J-integral is described. Experimental tests are performed on double cantilever beam specimens and relative displacements between adherends are acquired by using the digital image correlation technique. The obtained interface law can be implemented in a finite element code for simulating the decohesion process of complex bonded structures.
Mode I Fracture Toughness Evaluation of Adhesively Bonded Joints via J-Integral and DIC / Perrella, M.; Berardi, V. P.; Armentani, E.. - In: MACROMOLECULAR SYMPOSIA. - ISSN 1022-1360. - 389:1(2020), p. 1900116. [10.1002/masy.201900116]
Mode I Fracture Toughness Evaluation of Adhesively Bonded Joints via J-Integral and DIC
Perrella M.
;Armentani E.
2020
Abstract
Amorphous polymers, such as epoxy resins, are commonly used in the realization of adhesively bonded joints. In this paper an evaluation of mode I fracture toughness of bonded joints is presented. Moreover, an identification of cohesive zone model parameters via Rice's J-integral is described. Experimental tests are performed on double cantilever beam specimens and relative displacements between adherends are acquired by using the digital image correlation technique. The obtained interface law can be implemented in a finite element code for simulating the decohesion process of complex bonded structures.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
