1.1 该试验方法测定了由高模量纤维增强的多向聚合物基复合材料的紧固件贯穿阻力。紧固件穿过阻力的特征是，当机械紧固件穿过复合板时，施加的力垂直于板的平面，所表现出的力与位移的关系。复合材料形式仅限于连续纤维或不连续纤维（带或织物，或两者）增强复合材料，其层压板相对于测试方向是对称和平衡的。可接受的测试层压板和厚度的范围在 8.2 。 1.2 提供了两种测试程序和配置。第一个程序A适用于筛选和紧固件开发。第二种是程序B，它依赖于配置，适用于建立设计值。这两种程序可用于对候选紧固件/紧固件系统设计进行比较评估。 1.3 本文所述的试样可能不代表实际接头，实际接头可能包含与紧固件相邻的一个或多个自由边缘，或者可能包含可改变实际边界条件的多个紧固件。 1.4 该测试方法与CMH-17的建议一致，CMH-17描述了紧固件贯穿测试方法的理想属性。 1.5 单位-- 以国际单位制或英寸磅单位表示的数值应单独视为标准。每个系统中规定的值不一定是完全相等的；因此，为了确保符合标准，每个系统应独立使用，并且两个系统的值不得组合。 1.5.1 在文本中，英寸磅单位显示在括号中。 1.6 本标准并非旨在解决与其使用相关的所有安全问题（如有）。本标准的使用者有责任在使用前制定适当的安全、健康和环境实践，并确定监管限制的适用性。 1.7 本国际标准是根据世界贸易组织技术性贸易壁垒委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认的标准化原则制定的。 ===意义和用途====== 5.1 请参阅指南 D8509 。

1.1 This test method determines the fastener pull-through resistance of multidirectional polymer matrix composites reinforced by high-modulus fibers. Fastener pull-through resistance is characterized by the force-versus-displacement response exhibited when a mechanical fastener is pulled through a composite plate, with the force applied perpendicular to the plane of the plate. The composite material forms are limited to continuous-fiber or discontinuous-fiber (tape or fabric, or both) reinforced composites for which the laminate is symmetric and balanced with respect to the test direction. The range of acceptable test laminates and thicknesses is defined in 8.2 . 1.2 Two test procedures and configurations are provided. The first, Procedure A, is suitable for screening and fastener development purposes. The second, Procedure B, is configuration-dependent and is suitable for establishing design values. Both procedures can be used to perform comparative evaluations of candidate fasteners/fastener system designs. 1.3 The specimens described herein may not be representative of actual joints which may contain one or more free edges adjacent to the fastener, or may contain multiple fasteners that can change the actual boundary conditions. 1.4 This test method is consistent with the recommendations of CMH-17, which describes the desirable attributes of a fastener pull-through test method. 1.5 Units— The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined. 1.5.1 Within the text, the inch-pound units are shown in brackets. 1.6 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.7 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. ====== Significance And Use ====== 5.1 Refer to Guide D8509 .