An updated review of adhesively bonded joints in composite materials

https://recipp.ipp.pt/bitstream/10400.22/3445/7/ART_RaulCampilho_2013_DEM.pdf

Modelling adhesive joints with cohesive zone models: effect of the cohesive law shape of the adhesive layer

Impact resistance and damage tolerance of fiber reinforced composites: A review

The analysis of adhesively bonded joints started in 1938 with the closed-form model of Volkersen. The equilibrium equation of a single lap joint led to a simple governing differential equation with a simple algebraic equation. However, if there is yielding of the adhesive and/or the adherends and substantial peeling is present, a more complex model is necessary. The more complete is an analysis, the more complicated it becomes and the more difficult it is to obtain a simple and effective solution. The finite element (FE) method, the boundary element (BE) method and the finite difference (FD) method are the three major numerical methods for solving differential equations in science and engineering. These methods have also been applied to adhesive joints, especially the FE method. This book deals with the most recent numerical modelling of adhesive joints. Advances in damage mechanics and extended finite element method are described in the context of the FE method with examples of application. The classical continuum mechanics and fracture mechanics approach are also introduced. The BE method and the FD method are also discussed with indication of the cases they are most adapted to. There is not at the moment a numerical technique that can solve any problem and the analyst needs to be aware of the limitations involved in each case.

Advances in Numerical Modelling of Adhesive Joints

A general tetrakaidecahedron model for open-celled foams

Progressive damage modeling of open-hole composite laminates under compression

Traction–separation laws for progressive failure of bonded scarf repair of composite panel

The emergence of advanced computational methods and theoretical models for damage progression in composites has heralded the promise of virtual testing of composite structures with orthotropic lay-ups, complex geometries and multiple material systems. Recent studies have revealed that specimen size and material orthotropy has a major effect on the open hole tension (OHT) strength of composite laminates. The aim of this investigation is develop a progressive failure model for orthotropic composite laminates, employing stepwise discretization of the traction–separation relationship, to predict the effect of specimen size and laminate orthotropy on the OHT strength. The results show that a significant interaction exists between delamination and in-plane damage, so that models without considering delamination would over-predict strength. Furthermore, it is found that the increase in fracture toughness of blocked plies must be incorporated in the model to achieve good correlation with experimental results.

M. Ridha

Papers

Progressive damage modeling of open-hole composite laminates under compression

Traction–separation laws for progressive failure of bonded scarf repair of composite panel

Modelling complex progressive failure in notched composite laminates with varying sizes and stacking sequences

Modelling damage growth in composites subjected to impact and compression after impact

On the relationship between failure mechanism and compression after impact (CAI) strength in composites