<P><EM>Nonlinear Mechanics for Composite Heterogeneous Structures</EM> applies both classical and multi-scale finite element analysis to the<B></B>non-linear, failure response of composite structures. These traditional and modern computational approaches are holistically presented, providing insight into a range of non-linear structural analysis problems. The classical methods include geometric and material non-linearity, plasticity, damage and contact mechanics. The cutting-edge formulations include cohesive zone models, the Extended Finite Element Method (XFEM), multi-scale computational homogenization, localization of damage, neural networks and data-driven techniques. This presentation is simple but efficient, enabling the reader to understand, select and apply appropriate methods through programming code or commercial finite element software. </P><P>The book is suitable for undergraduate studies as a final year textbook and for MSc and PhD studies in structural, mechanical, aerosp