BS EN ISO 6721-1-2011 塑料.动态机械特性测定通则

标准号：BS EN ISO 6721-1-2011
中文标准名称：塑料.动态机械特性测定通则
英文标准名称：Plastics. Determination of dynamic mechanical properties. General principles
标准类型：G31
发布日期：2011/6/30 12:00:00
实施日期：2011/6/30 12:00:00
中国标准分类号：G31
国际标准分类号：83.080.01
引用标准：ISO 291;ISO 293;ISO 294;ISO 295;ISO 1268;ISO 2818;ISO 4593;ISO 6721-2-2008;ISO 6721-3
适用范围：The various parts of ISO 6721 specify methods for the determination of the dynamic mechanical properties ofrigid plastics within the region of linear viscoelastic behaviour. This part of ISO 6721 is an introductory sectionwhich includes the definitions and all aspects that are common to the individual test methods described in thesubsequent parts.Different deformation modes may produce results that are not directly comparable. For example, tensilevibration results in a stress which is uniform across the whole thickness of the specimen, whereas flexuralmeasurements are influenced preferentially by the properties of the surface regions of the specimen.Values derived from flexural-test data will be comparable to those derived from tensile-test data only at strainlevels where the stress-strain relationship is linear and for specimens which have a homogeneous structure.