Open AccessMaterial Parameters Identification for Modelling of Carbon Rod Structures Delamination
Author(s) -
Kęstutis Špakauskas,
Paulius Griškevičius,
K. Petkevičius,
Vitalis Leišis
Publication year - 2021
Publication title -
mechanika
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.205
H-Index - 23
eISSN - 2029-6983
pISSN - 1392-1207
DOI - 10.5755/j02.mech.19652
Subject(s) - delamination (geology) , materials science , finite element method , structural engineering , shear (geology) , rod , tension (geology) , composite material , fracture toughness , shear strength (soil) , engineering , ultimate tensile strength , medicine , paleontology , tectonics , alternative medicine , environmental science , pathology , soil water , soil science , subduction , biology
The aim of the present work is to compare the interlaminar shear strength and fracture toughness of glued carbon fiber rods obtained using different experimental approaches and provide the effective way to characterise the interlaminar properties for reliable simulation of the delamination. Five different test methods (tension, single shear test, and double shear test, mode I and mode II delamination tests) were performed. Using the explicit LS-DYNA code the finite element model capable of simulating the damage process of bonded connection was developed. The interlaminar connection and delamination criteria were calibrated using the parameter identification methodology implemented in LS-OPT optimization tool.