DIN EN ISO 6721-1-2011 塑料.动态机械性能测定.第1部分:一般原理(ISO 6721-1-2011).德文版本EN ISO 6721-1-2011

标准号：DIN EN ISO 6721-1-2011
中文标准名称：塑料.动态机械性能测定.第1部分:一般原理(ISO 6721-1-2011).德文版本EN ISO 6721-1-2011
英文标准名称：Plastics - Determination of dynamic mechanical properties - Part 1: General principles (ISO 6721-1:2011); German version EN ISO 6721-1:2011
标准类型：G31
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：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 of rigid plastics within the region of linear viscoelastic behaviour. This part of ISO 6721 is an introductory section which includes the definitions and all aspects that are common to the individual test methods described in the subsequent parts. Different deformation modes may produce results that are not directly comparable. For example, tensile vibration results in a stress which is uniform across the whole thickness of the specimen, whereas flexural measurements 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 strain levels where the stress-strain relationship is linear and for specimens which have a homogeneous structure.