Lecture
This lecture covers topics related to thermomechanical metallurgy, including stiffness, internal energy, modulus of elasticity, types of bonds, glass transition, and elasticity in heterogeneous materials. The instructor discusses the behavior of materials under stress, the interaction between atoms, and the irreversible deformation of crystalline materials. The lecture also explores the concept of homogenization in materials with heterogeneous properties and the identification of effective moduli. Various aspects of elasticity, such as shear stress, sliding systems, and critical cissions, are explained in the context of crystallographic planes and directions.