DIN EN 14186:2008
高级工业陶瓷.室温下陶瓷合成物的机械特性.用超声波技术测定弹性特性

Advanced technical ceramics - Mechanical properties of ceramic composites at room temperature - Determination of elastic properties by an ultrasonic technique; English version of DIN EN 14186:2008-02

标准号

DIN EN 14186:2008

发布

2008年

发布单位

德国标准化学会

当前最新

DIN EN 14186:2008

 

 

引用标准

CEN/TR 13233-2007 EN 1389 EN ISO/IEC 17025 ISO 3611

被代替标准

DIN V ENV 14186:2002

适用范围

This European Standard specifies an ultrasonic method to determine the components of the elasticity tensor of ceramic matrix composite materials at room temperature. Young's moduli, shear moduli and Poisson coefficients, can be determined from the components of the elasticity tensor. This European Standard applies to ceramic matrix composites with a continuous fibre reinforcement: unidirectional (1D), bidirectional (2D), and tridirectional (xD, with 2 < ×≤ 3) which have at least orthotropic symmetry, and whose material symmetry axes are known. This method is applicable only when the ultrasonic wave length used is larger than the thickness of the representative elementary volume, thus imposing an upper limit to the frequency range of the transducers used. NOTE Properties obtained by this method might not be comparable with moduli obtained by EN 658-1, EN 658-2 and EN 12289.

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