Measurement of the dynamic mechanical properties of high-strength steel using wave propagation characteristics

Title
Measurement of the dynamic mechanical properties of high-strength steel using wave propagation characteristics
Author
박준홍
Keywords
High-strength steel; Young's modulus; Loss factor; Tensile strength; Microstructure
Issue Date
2014-06
Publisher
Korean Physical Society; 1999
Citation
JOURNAL OF THE KOREAN PHYSICAL SOCIETY, 권: 64, 호: 12, 페이지: 1814-1818
Abstract
The dynamic mechanical properties of different high-strength steels were measured and compared based on their respective microstructures. Beam-shaped test specimens were excited using an electric shaker while vibration responses were measured using a non-contact laser sensor. Flexural wave propagation was analyzed to precisely determine material damping. Measured properties were compared to those of carbon steels. In addition, the effects of grain size determined by optical micrographs on the dynamic properties were investigated. The influence of the tensile strength on the measured properties was analyzed. The high-strength steels exhibited smaller damping with a similar Young's modulus compared to carbon steels, although the tensile strength was much greater.
URI
http://link.springer.com/article/10.3938%2Fjkps.64.1814http://hdl.handle.net/20.500.11754/46633
ISSN
0374-4884; 1976-8524
DOI
10.3938/jkps.64.1814
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > MECHANICAL ENGINEERING(기계공학부) > Articles
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