OS04W0242 Stress measuring system using image plate for laboratory X-ray experiment

Abstract

This paper describes a fundamental study on the possibility of a new type of the X-ray stress measurement, in which stresses are obtained from analyzing whole part of one diffraction ring detected with a two-dimensional X-ray detector called image plate (IP). The theory of the stress determination proposed by Taira and Tanaka (1978) was shown first, and then newly modified to be able to determine all plane stress components from a single-exposure experiment. An experiment was performed for the examination of the method, and the result of showed good agreement with stresses that were applied to the specimen mechanically.

Comparison of Two X-Ray Residual Stress Measurement Methods: Sin2 ψ and Cos α, Through the Determination of a Martensitic Steel X-Ray Elastic Constant

“…The intersection of the diffraction cone with the area detector provides a ring named Debyer-Scherrer ring [1]. The introduction of new 2D photosensitive detectors, such as image plate (IP), and the development of powerful calculation algorithms, bring the cos α method up to date [4]. Since few years, portable apparatus equipped with IP allow quick residual stress measurements using the cos α method.…”