Abstract An attempt has been made to predict the ice rubble field load on Norstromsgrund lighthouse by using Cohesive Element (CE) formulation. Two sub-load events were selected validate numerical and material model used in simulation of interaction lighthouse. A literature review structure methods is also included order illustrate knowledge gaps highlight shortcomings existing techniques. desc...

Free discontinuity problems arising in the variational theory for fracture mechanics are considered.AΓ -convergence proof for an r-adaptive 3Dfinite element discretization is given in the case of a brittle material. The optimal displacement field, crack pattern and mesh geometry are obtained through a variational procedure that encompasses both mechanical and configurational forces. Possible ex...

In this paper, the use of a cohesive-zone approach to model the mode-I fracture of adhesive joints made from a polymer-matrix composite is demonstrated. Cohesive-zone parameters were obtained by matching numerical results to experimental observations. It is shown that there is a distinction between the characteristic strength of the interface associated with the toughness, and the intrinsic coh...

Cohesive interface elements have become commonly used for modelling composites delamination. However, a limitation of this technique is the fine mesh size required. Here, novel cohesive element formulation proposed and demonstrated numerical zone with equal fidelity but fewer in comparison to linear formulation. The newly has additional degrees freedom form nodal rotations which when combined u...

The previously developed eigenvalue method for computing the size effect of cohesive crack model is extended to the cohesive crack model with a finite residual stress. In this model, the structure size for which a specified relative length of kink-band corresponds to the maximum load is obtained as an eigenvalue of a homogeneous Fredholm integral equation. This new method is direct and much mor...