对GB/T13096.2-91中弓形试样截面惯性矩计算公式的讨论  

DISCUSS THE CALCULATING FORMULA OF MOMENT OF INERTIA FOR BOW-SHAPED TEST PIECE IN GB/T 13096. 2-91

作　　者：周祝林[1] 易洪雷[1] 

机构地区：[1]新疆工学院纺织工程系,乌鲁木齐83000

出　　处：《玻璃钢／复合材料》2001年第1期3-4,共2页Fiber Reinforced Plastics/Composites

摘　　要：本文认为GB/T 130 96 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ASTMD44 76 - 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 formula of moment of inertia for bow-shaped test piece in GB/T 13096. 2-91 is wrong because of printing error. Correspondingly, the same error appeared in some handbooks 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.

关 键 词：弓形试样 惯性矩 理论计算 玻璃钢棒 测试 

分 类 号：TQ327.107[化学工程—合成树脂塑料工业]