ISO 20323:2018规定了在环境温度和大气压力下测定连续纤维增强陶瓷基复合管拉伸性能的条件。本文件针对管状几何结构，因为复合管中的纤维结构和试样几何因素与扁平试样中的明显不同。 ISO 20323:2018提供了有关单轴拉伸性能和拉伸应力应变响应的信息，如拉伸强度和应变、拉伸弹性模量和泊松比。 这些信息可用于管材部件的材料开发、制造控制（质量保险）、材料比较、表征、可靠性和设计数据生成。 ISO 20323:2018涉及但不限于各种建议的试件制造方法。它主要适用于具有连续纤维增强的陶瓷和/或玻璃基复合管:单向（1D纤维缠绕和胶带叠层）、双向（2D编织和编织）和三向- 定向（xD，带2<；x<；3），沿管轴加载。 本文件中表示的数值符合国际单位制（SI）。 注:在大多数情况下，在空气中高温使用的陶瓷基复合材料都涂有抗氧化涂层。

ISO 20323:2018 specifies the conditions for the determination of tensile properties of ceramic matrix composite tubes with continuous fibre-reinforcement at ambient temperature in air atmospheric pressure. This document is specific to the tubular geometries since fibre architecture and specimen geometry factors are distinctly different in composite tubes than in flat specimens. ISO 20323:2018 provides information on the uniaxial tensile properties and tensile stress-strain response such as tensile strength and strain, tensile elastic modulus and Poisson's ratio. The information may be used for material development, control of manufacturing (quality insurance), material comparison, characterization, reliability and design data generation for tubular components. ISO 20323:2018 addresses, but is not restricted to, various suggested test piece fabrication methods. It applies primarily to ceramic and/or glass matrix composite tubes with a continuous fibrous-reinforcement: unidirectional (1D filament winding and tape lay-up), bi-directional (2D braid and weave) and tri-directional (xD, with 2 < x < 3), loaded along the tube axis. Values expressed in this document are in accordance with the International System of Units (SI). NOTE In most cases, ceramic matrix composites to be used at high temperature in air are coated with an antioxidation coating.