Expression of strain tensor in orthogonal curvilinear coordinates

Based on an analysis of connotation and extension of the concept of the orthogonal curvilinear coordinates, we have deduced a platform hastu goyal of strain tensor expression of Cartesian coordinates, which turns out to be a function of Lame coefficient and unit vector.By using transform matrix between Cartesian coordinates and orthogonal curvilinear domeless quartz nails coordinates, we have deduced a mathematical expression for correcting displacement vector differential in orthogonal curvilinear coordinates, and given a general expression of strain tensor in orthogonal curvilinear coordinates.