Experimental numerical analysis of 3D residual stress state in railroad rails by means of an oblique slicing technique

Jacek Magiera; Janusz Orkisz

doi:10.1117/12.195519

30 November 1994 Experimental numerical analysis of 3D residual stress state in railroad rails by means of an oblique slicing technique

Jacek Magiera, Janusz Orkisz

Author Affiliations +

Proceedings Volume 2342, Interferometry '94: Photomechanics; (1994) https://doi.org/10.1117/12.195519
Event: International Conference on Interferometry '94, 1994, Warsaw, Poland

Abstract

The paper proposes new experimental, mechanical, and numerical procedures for solving the problem of experimental determination of rail residual stresses. Basically it brings an idea of a new and original experimental scheme, which can be looked upon as modification and development of the established in the field and informally recognized as standard Battelle technique. The new methodology of examination, however, discontinues expensive and troublesome Meier sectioning, replacing it with oblique slicing that brings information of the residual stresses in rotated coordinate systems. Based only on transverse and oblique slice measurements a new mechanical procedure restores iteratively a full 3D stress state that was originally in the rail. Application of complex mathematical procedures like physically based approximation techniques (embodiment of physical relations into approximation equations) and a full 3D model of the continuum (finite element analysis) along with moire interferometry measurements ensures high quality final results that are mechanically consistent with the applied model of the continuum. The paper discusses in detail mechanical background of the technique, experimental procedure and algorithms of numerical data handling and enhancement. An extensive range of tests show results of an in-depth investigation into the technique that has been carried out on simulated data. Possible extensions to the technique and further research plans also are shown.

Citation Download Citation

Jacek Magiera and Janusz Orkisz "Experimental numerical analysis of 3D residual stress state in railroad rails by means of an oblique slicing technique", Proc. SPIE 2342, Interferometry '94: Photomechanics, (30 November 1994); https://doi.org/10.1117/12.195519

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available