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Arrangement and method for the synchronous determination of the shear modulus and of the Poisson's number on samples of elastically isotropic and anisotropic materials
Arrangement and method for the synchronous determination of the shear modulus and of the Poisson's number on samples of elastically isotropic and anisotropic materials
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机译：弹性各向同性和各向异性材料样品上同步测定剪切模量和泊松数的装置和方法
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摘要
The invention relates to an arrangement and to a method for the synchronous determination of the shear modulus and of the Poisson's number on samples of elastically isotropic and anisotropic materials. In the arrangement, an indenter is movable in parallel with its longitudinal axis (A) in the direction of the surface of a sample such that a force action is exerted on the material by its tip. The force can be determined by a device for measuring this force and the indenter is additionally deflected in translation along at least one further axis. The longitudinal axis (A) of the indenter is aligned at an angle ≠90° with respect to the surface of the sample and the indenter carries out an upward movement and a downward movement. In this respect, a device is present for calculating the shear modulus G and the Poisson's number v from the contact stiffness k determined in this manner, from the acting normal force P, from the indentation modulus MS and from the shear modulus-related parameter NS of the sample while taking account of the respective angle θ.
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机译：本发明涉及一种用于同步确定弹性各向同性和各向异性材料样品上的剪切模量和泊松数的装置和方法。在该布置中，压头可平行于其纵轴（A）在样品表面的方向上移动，从而通过其尖端将力作用在材料上。该力可以通过用于测量该力的装置来确定，并且该压头另外沿至少一个另外的轴线平移地偏转。压头的纵轴（A）相对于样品表面以≠90°的角度对准，并且压头进行向上运动和向下运动。在这方面，存在一种装置，该装置根据以这种方式确定的接触刚度k，作用力法向力P，压痕模量M S 和剪切模量G和泊松数v来计算。从样品的与剪切模量相关的参数N S 出发，同时考虑各个角度θ。
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