[‚sän·və′nänz kəm‚pad·ə′bil·əd·ē i‚kwā·shənz] (mechanics) Equations for the components eijof the strain tensor that follow from their integrability, namely, (eij)kl+ (ekl)ij- (eik)jl- (ejl)ik= 0, where i, j, k, and l can take on any of the values x, y, and z, and subscripts outside the parentheses indicate partial differentiation.