本文认为GB/T 13096.2-91中计算弓形试样截面惯性矩的公式有误，同时指出在某些手册中有关计算公式也有误。为此作者给出正确的计算公式，并与美国ASTM D4476-85 中的近似公式进行了比较。结果表明大多数情况下，两个公式的计算结果差异在1%以内，由此证明了本文推荐计算公式的合理性。
This paper believes that the calculating formu la of moment of inertia for bow-shaped test piece in GB/T 13096. 2-91 is wrong b ecause of printing error. Correspondingly, the same error appeared in some handb ooks are also pointed out. Furthermore, a right calculating formula is given . The calculating results are compared with the approximate formula in ASTM D4476-85. It shows that the difference between the two formula is less than 1%, thus, the usability of the formula recommended by this paper is proved.
参考文献
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