Release Time:2019-07-01  Hits:

Indexed by: Journal Article

Date of Publication: 2019-12-01

Journal: INTERNATIONAL JOURNAL OF ADHESION AND ADHESIVES

Included Journals: EI、SCIE

Volume: 95

ISSN: 0143-7496

Key Words: Adhesive bonding; CZM; FE method; Crack propagation; Multi-island genetic algorithm

Abstract: In this work, a parameter identification approach was developed based on a combined experimental-numerical approach to determine the optimal set of adhesive parameters in adhesively bonded specimen subjected to various post curing treatments. End-Notched Flexure (ENF) testing was conducted to characterise the Mode II fracture property under both recommended and post curing conditions, providing benchmark data for the numerical analysis stage. Experimental results revealed that Mode II fracture energy was effectively affected by the post curing history, with higher temperature and longer curing duration leading to enhanced fracture resistance. The numerically identified Cohesive Zone Model (CZM) parameters using multi-island genetic algorithm provided good correlation in Mode H fracture energies between Finite element (FE) modelling and experimentally measured values, thus extensive experimental characterisation work to determine the adhesive parameters can be effectively eliminated.