On transition of delamination growth behaviour for compression loaded composite panels

On the robustness of finite element procedures based on Virtual Crack Closure Technique and fail release approach for delamination growth phenomena. Definition and assessment of a novel methodology

“…When dealing with propagation phenomena, the VCCT has been often implemented into interface elements [10][11][12][13][14][15] or used in conjunction with a procedure of releasing constraints between the crack faces when energy release rate levels overcome critical values (fail release approach) to simulate the delamination growth [16][17][18][19]. Most of these works were based on the use of meshes orthogonal to the delamination front, alternative approaches were 0266 proposed by Nilsson et al [24] and by De Xie et al [12][13]. In Ref.…”

“…In Ref. [24] the delamination growth was simulated by means of a moving mesh scheme whereas the approach proposed in Ref. [12][13] was able to trace the moving delamination front with an arbitrary and changing shape without requiring an adaptive remeshing.…”

A Global/Local Finite Element Approach for Predicting Interlaminar and Intralaminar Damage Evolution in Composite Stiffened Panels Under Compressive Load

“…A great amount of literature works have been devoted to the analysis of the postbuckling behaviour of structures with embedded delamination [2][3][4][5][6][7][8] but only in a few cases the presence of intralaminar damage has been considered too [9][10][11][12].…”

“…[9,10] or by releasing not merged nodes laying in the same position (i.e. having the same coordinates) but belonging to two different fracture surfaces [5,11,12,16].…”

Quasi-static evolution of delaminated structures: analysis of stability and bifurcation

“…Analytical or numerical examples of propagation of delamination in such composite structures use various propagation criteria mainly based on energy criteria. Extended Griffith formulations, sometimes with decomposition into fracture modes, have been used as well (Hutchinson et al, 2000;Nilsson et al, 2001). This paper is devoted to the evolution of delaminated structures represented by a frame of plates.…”