Inversion analysis of material parameters of multi-block plate structures in elastic foundations

elastic foundations;  seam load;  System identification;  Inversion

Using the finite element compression flexibility matrix, a displacement calculation method for multiple plates with seam load transfer capacity was established. On this basis, according to the principle of system identification, the modified Newton method is applied as the parameter adjustment algorithm to establish an inversion analysis method for the material properties of elastic foundation multi-block plate structure with joint load transfer capacity. The backcalculation results show that the method has stable convergence in the range of large modulus initial values.