A concise formulation is presented for the derivatives of Green's functions of three-dimensional generally anisotropic elastic materials. Direct calculation for derivatives of the Green's function on the Cartesian coordinate system is a common practice, which, however, usually leads to a complicated
Explicit expression of derivatives of elastic Green’s functions for general anisotropic materials
✍ Scribed by Ven-Gen Lee
- Publisher
- Elsevier Science
- Year
- 2003
- Tongue
- English
- Weight
- 114 KB
- Volume
- 30
- Category
- Article
- ISSN
- 0093-6413
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✦ Synopsis
The analytical expressions of GreenÕs function and their derivatives for three-dimensional anisotropic materials are presented here. By following the Fourier integral solutions developed by Barnett [Phys. Stat. Sol. (b) 49 (1972) 741], we characterize the contour integral formulations for the derivatives into three types of integrals H, M, and N. With CauchyÕs residues theorem and the roots of a sextic equation from Stroh eigenrelation, these integrals can be solved explicitly in terms of the Stroh eigenvalues P i (i ¼ 1; 2; 3) on the oblique plane whose normal is the position vector. The results of GreenÕs functions and stress distributions for a transversely isotropic material are discussed in this paper.
📜 SIMILAR VOLUMES
The three Barnett-Lothe tensors S, H, and L appear frequently in the real form solutions of two-dimensional anisotropic elasticity problems. Explicit expressions for the components of these tensors are presented for general anisotropic materials. The special cases of monoclinic materials with the pl