Effect of local damages on the buckling behaviour of pyramidal truss core sandwich panels

High-power laser resistance of filled sandwich panel with truss core: An experimental study

“…This performance is especially beneficial for a space structure or a thermal protection structure during service: the structure may still possess certain strength and maintain structural integrity. Our previous study indicates that the residual strength of the SPTC is insensitive to local damages of holes in one of the facesheet [29].…”

The compressive behavior of a composite cylindrical pyramidal lattice structure manufactured with a new production methodology

“…has explored new ways for designing lightweight multifunctional structures. 1,[14][15][16][17][18][19] The implementation of new production methods including kirigami methods, 18,20 slot-fitting or snap-fitting, 17,21 laser cutting, 22 hot press molding, 23,24 pultruded unidirectional (UD) carbon fiber composite rods, 25 filament winding, [2][3][4]26 and truss woven sandwiches 27 has improved the fabrication of low-density lattice cores. An example of using these methods is the work of Jiang et al, 28 in which a composite slot-fitted orthogrid core was co-cured with cylindrical skins fabricated by the filament winding method.…”

“…Hu et al, 29 Sun et al, 30 and Xiong et al 31 investigated the bending response and failure mode of 3D truss sandwich structures. There are prominent works of literature on the mechanical behavior of lattice core sandwich structures including axial compression, [1][2][3][4]26 in-plane compression, 18,23,32 out-of-plane compression, 17,19,[22][23][24] shear loading, 19,[21][22][23] and frequency response; 15,26,33 moreover, a failure mechanism map is provided in some articles. 1,14,29 In this study, the effects of fiber volume fraction, structure vacuum and fiber pre-tension are being studied on failure load during the construction of the cylindrical pyramidal lattice structure (CPLS) of a carbon fiber composite.…”

Compressive effect of jute fiber corrugated lattice sandwich structure

“…The occurrence of local buckling will reduce the buckling strength of the whole structure. 25 In another study, a method for the accurate calculation of effective modulus was developed by the derivation of a tensile model and a tensile strength–bending model. 26…”

“…Numerous studies have been conducted on the sandwich structure fabricated using metal. 25,27–29 For example, the possibility of obtaining high-strength and low-density building materials was proposed through the study of copper octahedral truss nanolattice. 30 The pyramid sandwich structure consisting of foam sandwiches shortened the length of the unit.…”