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

被引：1

作者：

Park, Jeongwon ^{[1
]}

Kim, Do-Hyung ^{[1
]}

Kim, Hak-Sung ^{[1
]}

Park, Junhong ^{[1
]}

Yoo, Ji Woo ^{[2
]}

机构：

[1] Hanyang Univ, Dept Mech Engn, Seoul 133791, South Korea

[2] Hyundai Motor Grp, NV CAE Team, Hwaseong 445706, South Korea

来源：

JOURNAL OF THE KOREAN PHYSICAL SOCIETY | 2014年 / 64卷 / 12期

关键词：

High-strength steel; Young's modulus; Loss factor; Tensile strength; Microstructure; DAMPING CAPACITY; MATRIX COMPOSITES; METALS; BEHAVIOR; ALLOYS; IRON;

D O I：

10.3938/jkps.64.1814

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

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.

引用

页码：1814 / 1818

页数：5

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