BS EN ISO 22459:2022
Fine ceramics (advanced ceramics, advanced technical ceramics). Reinforcement of ceramic composites. Determination of distribution of tensile strength and tensile strain to failure of filaments within a multifilament tow at ambient temperature
发布时间：2022-10-31 实施时间：


陶瓷复合材料是由陶瓷基质和增强材料组成的一种高性能材料。其中，增强材料通常采用纤维材料，如碳纤维、玻璃纤维、陶瓷纤维等。多丝束是一种常见的增强材料形式，它由多根单根纤维组成，这些单根纤维通过编织或缠绕等方式形成一个整体。多丝束具有高强度、高刚度、低密度等优点，因此在航空航天、汽车、医疗等领域得到广泛应用。

在多丝束中，单根纤维的强度和应变分布情况对整个多丝束的性能具有重要影响。因此，需要对单根纤维的拉伸强度和拉伸应变进行测定。BS EN ISO 22459:2022标准提供了一种可靠的测试方法，以测定多丝束内单根纤维的强度和应变分布情况。

该标准要求在环境温度下进行测试。测试时，需要将多丝束样品固定在夹具上，然后施加拉伸载荷，直到样品断裂。测试过程中需要记录载荷和位移数据，以计算单根纤维的拉伸强度和拉伸应变。测试结果应该是多个样品的平均值，并且应该报告单根纤维的强度和应变的分布情况。

BS EN ISO 22459:2022标准的实施可以帮助评估陶瓷复合材料中多丝束的性能，为材料的设计和应用提供依据。

相关标准
- BS EN ISO 14704-1:2019 Fine ceramics (advanced ceramics, advanced technical ceramics). Mechanical properties of ceramic composites at high temperature. Determination of tensile properties.
- BS EN ISO 14704-2:2019 Fine ceramics (advanced ceramics, advanced technical ceramics). Mechanical properties of ceramic composites at high temperature. Determination of compressive properties.
- BS EN ISO 14704-3:2019 Fine ceramics (advanced ceramics, advanced technical ceramics). Mechanical properties of ceramic composites at high temperature. Determination of shear properties.
- BS EN ISO 14704-4:2019 Fine ceramics (advanced ceramics, advanced technical ceramics). Mechanical properties of ceramic composites at high temperature. Determination of flexural properties.
- BS EN ISO 14704-5:2019 Fine ceramics (advanced ceramics, advanced technical ceramics). Mechanical properties of ceramic composites at high temperature. Determination of Poisson's ratio.