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层压板的开孔抗压强度。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，其中层压板相对于测试方向是平衡和对称的。可接受的测试层压板和厚度的范围在 8.2.1 。 1.2 几个相关的ASTM标准参考了本试验方法中描述的程序和设备。 特别是 7.2 被其他几个标准用来稳定压缩加载的试样。其中包括练习 D6742/D6742米 ，包括填充孔压缩测试；实践 D7615/D7615米 ，包括裸眼疲劳试验；和实践 D8066/D8066米 ，包括无缺口层压板压缩测试。 1.3 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。 1.3.1 在文本中，英寸磅单位显示在括号中。 1.4 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。 1.5 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 open-hole compressive strength of multidirectional polymer matrix composite laminates reinforced by high-modulus fibers. The composite material forms are limited to continuous-fiber or discontinuous-fiber (tape or fabric, or both) reinforced composites in which the laminate is balanced and symmetric with respect to the test direction. The range of acceptable test laminates and thicknesses are described in 8.2.1 . 1.2 Several related ASTM standards reference the procedures and apparatus described within this test method. In particular, the support fixture described in 7.2 is used by several other standards to stabilize compression-loaded test specimens. These include Practice D6742/D6742M , which covers filled-hole compression testing; Practice D7615/D7615M , which covers open-hole fatigue testing; and Practice D8066/D8066M , which covers unnotched laminate compression testing. 1.3 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. 1.3.1 Within the text, the inch-pound units are shown in brackets. 1.4 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. 1.5 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 .