Measurement of torsional stresses via Magnetic Barkhausen Noise
Source abstract
Abstract
This work presents an experimental study that evaluates the possibility of using a Non-Destructive Testing (NDT) technique based on the measurement of Magnetic Barkhausen Noise (MBN) for monitoring stresses generated by torsion. In the experiments, shaft-type samples made of AISI-1045, AISI-4140, and AISI-4340 steel were used. The results showed that the MBN measurement technique is sensitive to the detection of stresses generated by torsion. This result is unprecedented in the scientific literature. It was observed that the MBN signals increase regardless of the direction of the applied torque, whether positive or negative. With the excitation magnetic field oriented in the axial direction of the samples, the sensitivity of the technique in measuring torsional stresses is lower than in the measurement of bending stresses.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Magnetic Properties and Applications · Non-Destructive Testing Techniques · Structural Health Monitoring Techniques
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
University of Campinas - UNICAMP
Funding
FAVORIT Aços Especiais · Conselho Nacional de Desenvolvimento Científico e Tecnológico– CNPq
References (35)
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