Structural analysis of composite lattice shells of revolution on the basis of smearing stiffness

A new approach is developed for analysis of lattice shells of revolution. This approach shows to be more efficient in application to structural analysis and optimisation. Constitutive equations are developed and the expressions for components of stress and strain tensors are derived for the shells of revolution with different lattice patterns. The model for cylindrical lattice shell was realised in a computer code using symbolic computation. Numeric verification of the mathematical models is performed. The advantage of a new homogenisation approach is based on the ability to calculate structural stress resultants without performing finite element analysis which allows to achieve higher computational efficiency. Also this approach allows more design variables to be assigned in the further optimisation analysis.