1.1 本试验方法涵盖厚粘附搭接剪切样品的制备和测试，用于测定粘合剂的应力应变行为。 1.2 本试验方法涵盖使用厚粘附搭接剪切样品获得的应力-应变曲线的数据简化和分析。 1.3 以国际单位制表示的数值应视为标准。括号中的英寸-磅单位仅供参考。 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。 具体预防说明见 7.3 . 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 该试验方法可用于确定胶粘剂在剪切过程中的应力应变特性，并建立应力应变关系的比例极限。该数据可用于粘接接头的设计和分析。 5.2 本试验方法不旨在确定粘合剂对特定基材的粘附特性；相反，本试验方法旨在表征可能与设计考虑相关的粘合剂剪切应力-应变特性。 5.3 本试验方法是使用粘结铝粘附物开发和应用的。目前，无法对非铝粘附物的本试验方法的有效性作出任何假设。

1.1 This test method covers the preparation and testing of thick-adherend lap-shear samples for the determination of the stress-strain behavior of adhesives. 1.2 This test method covers data reduction and analysis of stress-strain curves obtained using thick-adherend lap-shear samples. 1.3 The values stated in SI units are to be regarded as the standard. The inch-pound units in parentheses are for information only. 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. Specific precautionary statements are given in 7.3 . 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 This test method can be used to determine the stress-strain properties of an adhesive in shear and to establish the proportional-limit of the stress-stain relationship. This data may be useful for the design and analysis of adhesively bonded joints. 5.2 This test method is not intended to determine adhesion characteristics of an adhesive to a particular substrate; rather this test method is intended to characterize the adhesive shear stress-strain properties that may be relevant for design considerations. 5.3 This test method has been developed and applied using bonded aluminum adherends. At this time no assumptions regarding the validity of this test method with non-aluminum adherends can be made.