Energy-Resolved Neutron Imaging for Reconstruction of Strain Introduced by Cold Working

Author: Tremsin Anton S.   Kockelmann Winfried   Kelleher Joe F.   Paradowska Anna M.   Ramadhan Ranggi S.   Fitzpatrick Michael E.  

Publisher: MDPI

E-ISSN: 2313-433x|4|3|48-48

ISSN: 2313-433x

Source: Journal of Imaging, Vol.4, Iss.3, 2018-02, pp. : 48-48

Access to resources Favorite

Disclaimer: Any content in publications that violate the sovereignty, the constitution or regulations of the PRC is not accepted or approved by CNPIEC.

Previous Menu Next

Abstract

Energy-resolved neutron transmission imaging is used to reconstruct maps of residual strains in drilled and cold-expanded holes in 5-mm and 6.4-mm-thick aluminum plates. The possibility of measuring the positions of Bragg edges in the transmission spectrum in each 55 × 55 µm2 pixel is utilized in the reconstruction of the strain distribution within the entire imaged area of the sample, all from a single measurement. Although the reconstructed strain is averaged through the sample thickness, this technique reveals strain asymmetries within the sample and thus provides information complementary to other well-established non-destructive testing methods.

Related content