Abaqus provides many features for modelling composite structures such as a powerful ply modelling tool and various progressive damage and failure models. From a detailed micro-model which describes the behaviour of the constituents: matrix and reinforcements or a meso-model of the composite considering the homogenised material properties at the ply level to a macro-model which simulates the global response of the laminate, the different scales of a composite material can be investigated for selecting the best-suited material or optimising the stacking sequence.
Modelling the failure of composite is a difficult task as this involves many damage mechanisms acting at different scales and interacting with one another. Common methods for modelling damage initiation and propagation are available in Abaqus such as the progressive material degradation using the Hashin’s failure criteria or the Virtual Crack Closure Technique. Further more, Abaqus provides the user with new modelling methods such as the surface-based cohesive behaviour or X-FEM, which are well suited for studying the complex failure mechanisms which occur in composite materials.
From the selection of the composite material and the design of the composite structure to the simulation of the behaviour of the structure until the final failure, a wide range of analyses can be performed with Abaqus. Applications include: sandwich composite, composite response after impact (damage tolerance), debonding propagation, crash test with CZone (Add-on), progressive damage and final failure of the laminate.