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Testing technique for determination of the dynamic poisson's ratio of a material with longitudinal and cross-sectional resonant frequencies of a circular solid rod specimen
Testing technique for determination of the dynamic poisson's ratio of a material with longitudinal and cross-sectional resonant frequencies of a circular solid rod specimen
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机译:用于确定具有圆形实心棒试样纵向和截面共振频率的材料的动态泊松比的测试技术
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摘要
A method of determining the dynamic Poisson's ratio of a material with a circular solid rod is provided. The method includes at least the following steps. 1. a circular solid rod specimen with the material to be determined for its dynamic Poisson's ratio is manufactured; 2. the length and diameter of the circular solid rod specimen is measured; 3. both the fundamental longitudinal and cross-sectional resonant frequencies of the circular solid rod specimen are obtained through experiments; 4. the dynamic Poisson's ratio of the material according to the formula provided in this invention is calculated; 5. the validity of geometric dimension of the circular solid rod specimen is justified.
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