TY - JOUR
T1 - An adaptive floating node based formulation for the analysis of multiple delaminations under quasi-static loading
AU - Trabal, Guillem Gall
AU - Bak, Brian Lau Verndal
AU - Chen, Boyang
AU - Lindgaard, Esben
PY - 2022
Y1 - 2022
N2 - A novel and efficient numerical formulation for the modelling of multiple delaminations growth in laminated composite materials subjected to quasi-static loading is presented. The proposed formulation alleviates the high computational cost associated with models featuring cohesive elements by using a novel Adaptive Refinement Scheme and an Adaptive Floating Node Method Element to refine the model effectively during the analysis without modifying the global finite element connectivity. The formulation has been implemented in a MATLAB finite element code and validated with single and multiple delamination numerical models with varying mode mixities. The new formulation provides accurate results comparable to standard fully refined finite element models while drastically lowering the computational time of the analysis.
AB - A novel and efficient numerical formulation for the modelling of multiple delaminations growth in laminated composite materials subjected to quasi-static loading is presented. The proposed formulation alleviates the high computational cost associated with models featuring cohesive elements by using a novel Adaptive Refinement Scheme and an Adaptive Floating Node Method Element to refine the model effectively during the analysis without modifying the global finite element connectivity. The formulation has been implemented in a MATLAB finite element code and validated with single and multiple delamination numerical models with varying mode mixities. The new formulation provides accurate results comparable to standard fully refined finite element models while drastically lowering the computational time of the analysis.
KW - Adaptive refinement
KW - Cohesive element
KW - Delamination
KW - Floating node method
KW - Laminated composite structures
UR - http://www.scopus.com/inward/record.url?scp=85125152038&partnerID=8YFLogxK
U2 - 10.1016/j.compositesa.2022.106846
DO - 10.1016/j.compositesa.2022.106846
M3 - Article
AN - SCOPUS:85125152038
SN - 1359-835X
VL - 156
JO - Composites Part A: Applied Science and Manufacturing
JF - Composites Part A: Applied Science and Manufacturing
M1 - 106846
ER -