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arXiv 1304.7896cond-mat.soft
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形变Bell材料中的表面波

Surface waves in deformed Bell materials

Michel Destrade

摘要:

研究了小振幅非均匀平面波在预变形的Bell约束材料半无限体自由表面上传播的问题。预变形对应于有限的静态纯均匀应变。表面波在应变的主方向上传播,并且在与自由表面正交的另一主方向上衰减。对于这些波,给出的传播速度的长期方程建立的第一积分的方法。该方程与不可压缩半空间的久期方程不同,尽管Bell约束和不可压缩约束在各向同性无穷小极限上重合。

英文摘要:

Small amplitude inhomogeneous plane waves are studied as they propagate on the free surface of a predeformed semi-infinite body made of Bell constrained material. The predeformation corresponds to a finite static pure homogeneous strain. The surface wave propagates in a principal direction of strain and is attenuated in another principal direction, orthogonal to the free surface. For these waves, the secular equation giving the speed of propagation is established by the method of first integrals. This equation is not the same as the secular equation for incompressible half-spaces, even though the Bell constraint and the incompressibility constraint coincide in the isotropic infinitesimal limit.

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