抄録
Students learn about stress and strain using uniaxial models in introduction to mechanics of materials. The essence of these quantities is studied steadily throughout classes. Nowadays, advanced problems involving elasticity, plasticity, thermal expansion, creep, etc. are solved using software based on the finite element method not only to evaluate strength of products in their design but also to examine workability of processes. In order to accurately investigate obtained stress and strain, knowledge of them based on mechanics of materials as well as materials science is effective. When students become engineers and face real world applications, some of them think that their skills relating to the quantities are not sufficient. Some activities are performed to improve their skills. For example, the author’s lecture on heat treatment distortion and residual stress on a one-day course for engineers includes learning materials for intuitive understanding of the quantities due to elasticity, thermal expansion and plasticity that is described in this paper. These will be useful for engineers involved in various manufacturing technologies such as casting, forging, machining, and welding, and also mechanical design.
