DIN EN 15190-2007 结构胶粘剂.评估粘合金属结构的长期坚固度用试验方法

标准号：DIN EN 15190-2007
中文标准名称：结构胶粘剂.评估粘合金属结构的长期坚固度用试验方法
英文标准名称：Structural adhesives - Test methods for assessing long term durability of bonded metallic structures; German version EN 15190:2007
标准类型：G39
发布日期：1999/12/31 12:00:00
实施日期：1999/12/31 12:00:00
中国标准分类号：G39
国际标准分类号：83.180
引用标准：EN 923-2005;EN 13887;EN ISO 9142;ISO 15024
适用范围：1.1 This standard specifies test procedures for determining the long-term durability of an adhesive systemsubjected to environmental and fatigue loads. The procedures are based upon measurement of the crackgrowth rate and the resistance to crack propagation through the adhesive layer in double cantilever beam typespecimens under an applied mode I opening cycling loading.1.2 The test specimens consist of rectangular metal substrates bonded together with a pre-starter crack inthe bondline. For testing joints consisting of relatively thin sheets of metallic substrates the specimen needs tobe structurally reinforced by adding layers of compatible material to the back of each adherend substrate inorder to prevent permanent deformation, usually referred to as reinforced double cantilever beam (RDCB) testspecimen.1.3 For brevity, the standard relates to testing RDCB specimens, which are essentially more complex inmanufacturing than standard double cantilever beam (DCB) specimens. However, the standard allows also foruse of single substrate double cantilever beam specimens when the substrate material is available in sufficientthickness.1.4 The test method has been proven to be particularly sensitive in finding weaknesses within certainadhesive systems and is recommended as a scientific tool to study adhesion properties. This test methodmay be used to determine:- The fatigue crack growth rate as a function of the mode I strain energy release rate;- The threshold values for negligible crack growth;- The effects of other environmental factors (temperature and/or humidity cycling);- The mode I (peel or crack opening) failure mode of the adhesive joint (cohesive, interfacial, near-surface ...).