The effect of delaminations on local buckling in wind turbine blades

Detection and characterisation of delamination damage propagation in Woven Glass Fibre Reinforced Polymer Composite using thermoelastic response mapping

“…(Wang & Xu 2015) presented an approach using cohesive elements to simulate propagation of a delamination, including descriptions of both propagation direction and effective propagation length under high-cycle fatigue loading. (Saeedifar et al 2015) and (Haselbach, Bitsche & Branner 2016) have shown that the modified CZM technique exhibits good performance in simulating crack initiation and delamination crack length in laminated composite structures.…”

Progressive failure of composite wind blades with a shear-web spar subjected to static testing

“…Such load carrying capacity requirement has made the failure analysis of a wind turbine blade become an important topic of research, especially the determination of the failure behaviour of the blade under an extreme wind load. Recently, many papers [1][2][3][4][5] have been devoted to study the failure behaviour of wind turbine blades subjected to quasi-static loads. In the previous studies, the failure modes and their criticality have been studied in the failure analysis of the wind blades.…”

Effects of geometric non-linearity on energy release rates in a realistic wind turbine blade cross section

“…The solution of the global model is then interpolated onto the boundary of the sub-model. Fracture analysis is subsequently conducted on the sub-model as demonstrated and discussed by Haselbach [3] and Haselbach et al [4]. In the semi-analytical approach, nodal forces in the vicinity of the adhesive connections are obtained from 3D models with a low degree of modelling detail and low mesh resolution.…”