Investigation of facesheet wrinkling and its effects on the performance and response of a sandwich structure using a new sandwich shell element

A new linear sandwich shell element is presented, based on the third order shear deformation theory from Reddy in combination with a `zig-zag' model. Following from a set of benchmark tests, the sandwich element shows superior accuracy in determining facesheet stresses compared to the Abaqus S4 shell element and a good correlation with 3D finite...

Crack propagation analysis using Phase-Field model in the framework of Isogeometric analysis and Finite Cell Method

Fracture mechanics based computational methods are becoming increasingly important to study the structural integrity and failure of materials and structures used in engineering applications. One challenging aspect for computational methods is the analysis of crack nucleation and propagation in complex geometries or in materials with...