W-12 Learning about Stress and Strain Due to Creep for Real World Applications

抄録

The author has an opportunity to give a talk in one-day courses for heat treatment engineers. The aim of this course is to explain about heat treatment simulation based on the finite element method and its applications. An introductory part of the course uses teaching materials to intuitively understand complex phenomena induced from elasticity, thermal expansion and plasticity. These materials, which were reported previously, include a crystal model based on knowledge of both mechanics of materials and materials science. The author has expanded the materials to phenomena including not only elasticity, thermal expansion and plasticity but also creep which occurs generally at high temperature and in a prolonged time. Although the crystal models are useful to understand an essence of the phenomenon, an experiment has been conducted additionally. The devised materials may be meaningful for engineers involved in manufacturing techniques such as casting, plastic working, machining, welding, and design of machines and processes operating at high temperatures.