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
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.