ISO 11093-8:2017 纸和纸板 纸芯的测定 第8部分：试验模型分析法测定固有频率和弹性模量

标准编号：ISO 11093-8:2017

中文名称：纸和纸板 纸芯的测定 第8部分：试验模型分析法测定固有频率和弹性模量

英文名称：Paper and board — Testing of cores — Part 8: Determination of natural frequency and flexural modulus by experimental modal analysis

发布日期：2017-06

标准范围

ISO 11093-8:2017规定了一种通过使用圆柱纸和纸板芯横向振动自由-自由模式下的实验测得的固有频率来确定弯曲模量的方法，该固有频率满足以下标准:-内径:50毫米至350毫米；-最小壁厚:0.02×内径或不小于2.0mm；-芯的最小长度:8×内径。注:关于用三点法测定弯曲模量，见ISO 11093-7。

ISO 11093-8:2017 specifies a method for the determination of the flexural modulus by using experimentally measured natural frequencies in the free-free mode of transverse vibration of cylindrical paper and board cores, which meet the following criteria:- internal diameter:50 mm to 350 mm;- minimum wall thickness:0,02 × internal diameter or not less than 2,0 mm;- minimum length of core:8 × internal diameter.NOTE For the determination of the flexural modulus by the three-point method, see ISO 11093？7.

标准预览图