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
This document 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.
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