X-ray tomography-based in-situ loading device

Abstract

The invention relates to an X-ray tomography-based in-situ loading device, which comprises a lower clamping block, an upper clamping block, a displacement sensor and carbon-fiber reinforced plastic rods, wherein a cavity, a moving dowel bar and a loading screw are arranged on the upper clamping block; the moving dowel bar is glidingly connected with the upper clamping block, one end of the movingdowel bar is positioning outside the upper clamping block, and the other end of the moving dowel bar is positioned in the cavity; the loading screw is in threaded connection with the upper clamping block; a stress sensor is arranged in the cavity, and a displacement sensing head of the displacement sensor is propped against the stress sensor at the part where the stress sensor is positioned between the other end of the moving dowel bar and the loading screw; upper-end connection holes and lower-end connection holes are respectively arranged on the upper clamping block and the lower clamping block; the upper and the lower ends of the carbon-fiber reinforced plastic rods are arranged in the upper-end connection holes and the lower-end connection holes and are fastened through upper-end fastening blots and a lower-end fastening blots which are respectively arranged on the upper clamping block and the lower clamping block; and upper-end fixing pins and lower-end fixing pins are respectively arranged on the upper clamping block and the lower clamping block and radially penetrate through the carbon-fiber reinforced plastic rods.

Description

Technical field: [0001] The invention belongs to mechanical devices, in particular to an in-situ loading device based on X-ray tomography. Background technique: [0002] Tomography is a calculation method for inverting physical models from observational data. Complex mathematical calculations are used in the inversion transformation. Because this transformation can only be done by computer, it is generally called computer tomography. X-ray tomography is the use of X-rays to penetrate various materials and be partially absorbed, and the ray intensity signals obtained by the detector are processed and calculated by a computer to obtain a tomographic image. X-ray tomography has the advantages of in-situ observation, tomographic imaging, and three-dimensional perspective, so it has a bright application prospect in the field of material three-dimensional microstructure characterization. With the in-depth study of damage and defect structure, researchers need to know the law of d...

AI Technical Summary

Problems solved by technology

[0003] Considering that the sample stage needs to rotate during the tomographic data acquisition process, and the maximum load of the sample stage is limited, it is difficult to directly add the force of the loading system to the sample stage to realize the in situ experiment.

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