Under cyclic thermomechanical loading conditions, various damage mechanisms such as strain accumulation, creep cavitation, ageing, fatigue surface cracking etc. may take place in the material of a gas turbine blade. Depending on the loading conditions, all these effects can contribute to reduce the lifetime of the component.
Subject of the present work is the development of a material model to describe the mechanical effects mentioned above, as well as the development of a lifetime model able to discriminate the different damage mechanisms.
Abstract
Böhler (or Boehler) W405 is a hot work steel with a great combination of hardness, strength, toughness, ductility, and thermal conductivity to resist typical damage mechanisms in applications. This datasheet provides information on composition, physical properties, and elasticity. It also includes information on forming and heat treating. Filing Code: TS-722. Producer or source: Böhler-Uddeholm North America.
Computer analysis of transient thermal process of brake discs considering the model dimensionality and the disc brake design