Thermal Properties: Expansion, Stress, and Diffusion

This lecture covers the effects of temperature on materials, including thermal expansion, stress generation, and heat diffusion. It explains how materials behave under temperature changes, the mechanical consequences of thermal expansion, and the thermal-mechanical stresses that arise. Additionally, it discusses the influence of temperature on material properties such as density, elasticity, and conductivity, as well as the phenomenon of heat diffusion in non-uniform temperature distributions. Practical implications, such as joint design with different materials and the importance of understanding thermal properties for various applications, are also addressed.