Estimation of the state of rod structural elements based on recording of deformation responses to serial impact excitations
Source abstract
Abstract
Based on the example of welded and one-piece-cut steel (Steel 10) frame triangular elements (4 × 8 × 245 mm) using the methods of thermal unloading up to the temperature T max = 625°C, serial impact testing of parent (stressed) and unloaded elements, and comparative analysis of Fourier images of deformation responses with respect to unloaded elements, it was found that a nonlinear region of the Fourier image degenerates into a linear one and the maximum of the linear regions of the Fourier image shifts up to 2 Hz. The dynamic deformation responses of the elements were recorded using superbroadband (from 10−2 to 108 Hz) ferroelectric microsensors based on thin Pb(Zr0.53Ti0.47)O3 films with a thickness of ∼2.0 μm with a 0.8 mm2 contact pad. The results can provide a the signal for distinguishing stressed states of structures and their elements.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Structural Health Monitoring Techniques · Optical measurement and interference techniques · Ultrasonics and Acoustic Wave Propagation
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (17)
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