Abstract

This chapter focuses on assessment of residual stresses. Principally, no material states of practical importance exist, which are free of residual stresses. Consequently, the evaluations and assessment of residual stresses is of high importance for both materials scientists and engineers. Thereby, special interest is focused on residual stress systems leading to improved material behavior under given loading conditions. In this chapter, the fundamental aspect for the assessment of static and cyclic loaded parts bearing residual stresses of the first kind are outlined. Some basic principles of theory of elasticity are presented and equivalent stresses are introduced using approved failure hypotheses. Some fundamentals of failure analysis are presented.

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