CAJ | 학술논문

通过对国标规范中弹性模量动态测试修正系数表格的变化规律研究，综合考虑材料泊松比、试样的回转半径与长度的比值以及截面形状的影响规律，对规范给出的修正系数表格进行了拟合，得到了圆形和矩形截面修正系数的公式化表达，使用该公式表达的修正系数与规范表格的数值的最大相对误差为0．032％，通过实验验证，该修正公式测量结果与其他方法测定的结果较为一致，且能方便地计算任意泊松比和修正系数，具有一定的工程应用价值。
통과대국표규범중탄성모량동태측시수정계수표격적변화규률연구，종합고필재료박송비、시양적회전반경여장도적비치이급절면형상적영향규률，대규범급출적수정계수표격진행료의합，득도료원형화구형절면수정계수적공식화표체，사용해공식표체적수정계수여규범표격적수치적최대상대오차위0．032％，통과실험험증，해수정공식측량결과여기타방법측정적결과교위일치，차능방편지계산임의박송비화수정계수，구유일정적공정응용개치。
The correction coefficient of elastic modulus dynamic testing ,T1 ,given by the national standard is fitted out according to the change law research of T1 .The influence law of the Poisson’s ratio μ,radius of gyration and length ratio r/L and shape of the cross section are taken into account .The circular and rectangular section correction coefficients of T1 formulation are obtained separately .The biggest relative error of T1 between the formula obtained in this paper and the table given by the national standard is about 0 .032% .And the testing results using the formula obtained in this paper are consistent with other methods .The formula can easily calculate the T1 for arbitrary μand r/L .