Non-Destructive Estimation of Residual Stress Distribution of Shot-Peened Steels Based on Nonlinear Analysis of Sin2 .PSI. Diagrams

Autor:	Kazuo Arai, Etsuya Yanase, Keisuke Tanaka, Yukihiro Kusumi, Kouji Nishio, Yoshiaki Akiniwa
Rok vydání:	2003
Předmět:	Materials science Mechanical Engineering Synchrotron Radiation Source Peening Radiation Stress (mechanics) Nonlinear system Distribution (mathematics) Mechanics of Materials Residual stress Forensic engineering General Materials Science Monochromatic color Composite material
Zdroj:	TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series A. 69:993-1000
ISSN:	1884-8338 0387-5008
DOI:	10.1299/kikaia.69.993
Popis:	A new method of nondestructive estimation of the in-depth distribution of residual stresses is proposed by using monochromatic high-energy X-rays from synchrotron radiation source SPring-8. The X-ray with 72 keV energy was used for stress measurements of shot-peened steel samples, whose compressive zone extended a few hundred micrometers below the surface. The measurements were carried out by using the sin2 φ method in a Ψ-diffractometer. The obtained results of sin2 φ diagrams showed nonlinearity due to the in-depth distribution of the residual stress. The stress distribution below the surface was estimated from the analysis to the nonlinearity of sin2φ dragrams. The estimated stress distribution agreed well with that determined by the conventional sin2 φ method with Cr-Kα radiation corrected by surface removal effect.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::20635998aa2fa79da8fbd469c3a95d3a https://doi.org/10.1299/kikaia.69.993 Zobrazit plný text záznamu