... Theory for Brittle Materials . . . . 101IV.8 Concluding Remarks 105Contents XIIIIV.9 ExamplesandExercises 106Part II Strength of MaterialsV Fundamental Concepts of Strength of Materials 119V.1 ... General ConsiderationsMaterials are of a discrete nature, since they are made of atoms and molecules,in the case of liquids and gases, or, in the case of solid materials, also of fibres, crystals, ... granules, associations of different materials, etc. The physicalinteractions between these constituent elements determine the behaviour of the materials. Of the different facets of a material s behaviour,...