Neutron Diffraction Strain Tomography: Demonstration and Proof-of-Concept
arXiv:1906.09945 · doi:10.1063/1.5120422
Abstract
Recently, a number of reconstruction algorithms have been presented for residual strain tomography from Bragg-edge neutron transmission measurements. In this paper, we examine whether strain tomography can also be achieved from diffraction measurements. We outline the proposed method and develop a suitable reconstruction algorithm. This technique is demonstrated in simulation and a proof-of-concept experiment is carried out where the strain field in an axisymmetric sample is reconstructed and validated against conventional diffraction strain scans.
References in corpus (7)
- Probabilistic modelling and reconstruction of strain
- Bragg-Edge Elastic Strain Tomography for in situ Systems from Energy-Resolved Neutron Transmission Imaging
- Tomographic Reconstruction of Two-Dimensional Residual Strain Fields from Bragg-Edge Neutron Imaging
- Robust Inference of Two-Dimensional Strain Fields from Diffraction-based Measurements
- Tomographic Reconstruction of Triaxial Strain Fields from Bragg-Edge Neutron Imaging
- Implementation of Traction Constraints in Bragg-edge Neutron Transmission Strain Tomography
- Neutron Transmission Strain Tomography for Non-Constant Stress-Free Lattice Spacing