The sole purpose of the Journal is to report original research on all aspects of plastic deformation of isotropic as well as anisotropic solids, including the thermodynamics of plasticity and fracture, continuum theory, and macroscopic as well as microscopic phenomena. The topics of interest include plastic behaviour of single crystals and polycrystalline metals, ceramics, rocks and soils, composite and polymers, as well as plasticity aspects of failure and fracture mechanics. Significant experimental, numerical or theoretical contributions advancing the understanding of plastic behaviour of solids are most welcome, together with studies relating microscopic behaviour of solids.The Journal will contain research papers, review articles, research notes, letters to the editor, and academic advertisements (books, journals, conferences, and symposia). Strain-rate dependent and strain-rate independent constitutive models to predict observed phenomena during quasi-static or dynamic thermo-mechanical loading, elastic-plastic fracture mechanics in solids due to quasi-static, dynamic or cyclic thermo-mechanical loadings, behaviour of granular or porous solids under high confining pressures and at high temperatures, and models with capability for predicting the plastic behaviour of composite materials based on known plastic behaviour of matrix and fibers in such materials, are some examples of the main themes of this journal. Revealing applications of the new models of plasticity are also welcome.