On the mechanical effect of stitch addition in sandwich panel

Numerical analysis on the effect of shear keys pitch on the shear performance of foamed sandwich panels

“…One of the earliest attempts to improve the connection between the sandwich components was stitching [16,17] which included sewing of the laminates through the thickness using high strength yarn. Although this technique acquired a lot of attention due to its ability to enhance the through thickness properties of the laminate, it failed to find many applications because of the deterioration of the in-plane properties of the structure before it was placed in application [18].…”

Crack deflection analyses of different peel stopper designs for sandwich structures

“…One method is to use stitching techniques, which in principal is to stitch/connect the upper and lower face sheets together by means of fibres stitched through the thickness of the sandwich. This method increases the debonding strength (fracture toughness) between the core and face sheet by several magnitudes [9][10][11][12]. However, the method is complicated with respect to manufacturing, and local repairing of stitched components may not be possible without replacement of larger parts of the structure.…”

Numerical Analysis of Thermodynamic Behaviour of Through-Thickness Stitched Sandwich Laminate

“…core/skin interface cohesion as well as the stiffness and the inter-laminar strength [10][11][12]. However, the geometry constructed by this new technology is very complex and a numerical approach is desired for the best material's solution according to the schedule of conditions.…”