1.1 本指南提供了促进从纤维增强有机基复合材料预浸料中正确制备层压板和试样的指南。范围仅限于单向（带）或正交编织模式中的有机基质和纤维增强。其他形式可能需要偏离这些一般准则。未涉及制备试样的其他加工技术，例如拉挤、纤维缠绕和树脂转移成型。 1.2 样本制备模拟为8步过程，如 图1 和截面 8. . 假设层压板固结技术是通过压机或高压釜进行的。本规程假设材料由测试设施正确处理，以满足材料供应商或规范或两者规定的要求。正确的试样识别还包括工艺设备、工艺步骤的指定以及加工过程中识别的任何不规则情况。 图1 8步机械试验数据模型 注1: 材料标识是强制性的。在整个过程中，需要对样本进行连续跟踪。 过程检查( 附录X4 )可在每个步骤结束时进行，以验证执行该步骤是为了得到质量合格的层压板或试样。 步骤4和5可以互换。对于芳纶纤维，步骤5通常先于步骤4。 步骤6、7和8可以互换。 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值。每个系统中规定的值不一定是精确的等价物；因此，为确保符合本标准，每个系统应独立使用，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）。本标准的用户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（TBT）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》中确立的国际公认标准化原则制定的。 ====意义和用途====== 5.1 如果本指南中描述的技术与特定材料系统行为的知识结合使用，将有助于正确制备用于机械性能测试的固结层压板。 5.2 建议采用所述技术，通过最大限度地减少试样制造过程中不受控制的加工差异，促进一致生产出满意的试样。 5.3 对于特定样本或测试类型，可能不需要8步过程中的步骤3至8。如果样品或试验不需要样品制造过程中的给定步骤，则可以跳过该特定步骤。 5.4 试样代表结构零件的简化。试样的价值在于多个现场能够使用标准技术测试试样的能力。测试数据可能不会显示出与大型结构中获得的相同的特性，但可以在测试结果和零件性能之间建立相关性。这在一定程度上可能是由于难以为试样创建与大规模工艺相同的加工环境。 5.5 公差是基于当前实验室实践的指南。由于可能制作的面板和样本种类繁多，本指南不试图给出详细说明。公差应作为可进行细化的起始参考。

1.1 This guide provides guidelines to facilitate the proper preparation of laminates and test specimens from fiber-reinforced organic matrix composite prepregs. The scope is limited to organic matrices and fiber reinforcement in unidirectional (tape) or orthagonal weave patterns. Other forms may require deviations from these general guidelines. Other processing techniques for test coupon preparation, for example, pultrusion, filament winding and resin-transfer molding, are not addressed. 1.2 Specimen preparation is modeled as an 8-step process that is presented in Fig. 1 and Section 8 . Laminate consolidation techniques are assumed to be by press or autoclave. This practice assumes that the materials are properly handled by the test facility to meet the requirements specified by the material supplier(s) or specification, or both. Proper test specimen identification also includes designation of process equipment, process steps, and any irregularities identified during processing. FIG. 1 8 Step Mechanical Test Data Model Note 1: Material identification is mandatory. Continuous traceability of specimens is required throughout the process. Process checks ( Appendix X4 ) may be done at the end of each step to verify that the step was performed to give a laminate or specimen of satisfactory quality. Steps 4 and 5 may be interchanged. For aramid fibers, step 5 routinely precedes step 4. Steps 6, 7 and 8 may be interchanged. 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 The techniques described in this guide, if properly used in conjunction with a knowledge of behavior of particular material systems, will aid in the proper preparation of consolidated laminates for mechanical property testing. 5.2 The techniques described are recommended to facilitate the consistent production of satisfactory test specimens by minimizing uncontrolled processing variance during specimen fabrication. 5.3 Steps 3 through 8 of the 8-step process may not be required for particular specimen or test types. If the specimen or test does not require a given step in the process of specimen fabrication, that particular step may be skipped. 5.4 A test specimen represents a simplification of the structural part. The test specimen's value lies in the ability of several sites to be able to test the specimen using standard techniques. Test data may not show identical properties to those obtained in a large structure, but a correlation can be made between test results and part performance. This may be due, in part, to the difficulty of creating a processing environment for test specimens that identically duplicates that of larger scale processes. 5.5 Tolerances are guidelines based on current lab practices. This guide does not attempt to give detailed instructions due to the variety of possible panels and specimens that could be made. The tolerances should be used as a starting reference from which refinements can be made.