Numerical FEA parametric analysis of CAI behaviour of CFRP stiffened panels

Show simple item record Gaitanelis, Dimitrios G. Giannopoulos, Ioannis K. Theotokoglou, Efstathios E. 2019-06-11T13:56:56Z 2019-06-11T13:56:56Z 2019-06-10
dc.identifier.citation Gaitanelis DG, Giannopoulos IK, Theotokoglou EE. (2019) Numerical FEA parametric analysis of CAI behaviour of CFRP stiffened panels. Thin-Walled Structures, Volume 143, October 2019, Article number 106231 en_UK
dc.identifier.issn 0263-8231
dc.description.abstract This paper examined the effect of numerical modelling parameters on the accuracy and computational efficiency of Carbon Fibre Reinforced Polymer (CFRP) stiffened panels under Compression After Impact (CAI). Pristine and damaged CFRP stiffened panels were subjected to compression in Abaqus® software using Cohesive Zone Model (CZM) method. Various case studies were examined and the effect of the stiffness parameters of the cohesive elements was critically assessed. Moreover, the required number of cohesive zones to fully capture the damage mechanisms of the impacted and pristine panels under compressive loading was examined. The results showed that a wrong set of parameters can even lead to neglecting the induced damage and can cause severe convergence problems in the numerical model. The importance of the Overall Meshing Factor (OMF) was highlighted and a user-defined subroutine (USDFLD) was applied to capture the decrease in the load bearing capability of an impacted panel prior to the compressive loading, since CZM was found insufficient for this scope. The above-mentioned remarks illustrated the process of investigating the optimum numerical parameters set to achieve an accurate and efficient finite element modelling of the stiffened panels structural performance and maximum load-carrying capability, when subjected to CAI loading. en_UK
dc.language.iso en en_UK
dc.publisher Elsevier en_UK
dc.relation.ispartofseries ;106231
dc.rights Attribution-NonCommercial-NoDerivatives 4.0 International *
dc.rights.uri *
dc.subject Delamination en_UK
dc.subject Damage mechanics en_UK
dc.subject Finite element analysis en_UK
dc.subject Cohesive zone model (CZM) en_UK
dc.title Numerical FEA parametric analysis of CAI behaviour of CFRP stiffened panels en_UK
dc.type Article en_UK
dc.identifier.cris 23568177

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