A method for stress calculation for components of carbon fiber-reinforced plastics, so-called CFK components, of a plurality of layers (L1, L2, L3) of fiber composite material, which have essentially a unidirectional alignment in at least a part of the respective layers (L1, L2, L3), comprising the steps of: - aerially determining a surface contour of the CFK component comprising a height and position of surface waves in the outer layer of the fiber composite material by means of suitable optical measuring methods; - selecting a suitable position for at least one sectional area through the layers of fiber composite material of the CFK component by means of the determined height and position of the surface waves; - analyzing and determining characteristic surface waves by means of a two-dimensional Fourier analysis using suitable filters and a selection of Fourier orders of the surface waves, wherein the filters and Fourier orders are selected such that a retransformation of the Fourier analysis provides for a sufficient reproduction of the optically determined surface contour; - determining the waves of the CFK component at the produced sectional area by the CFK component as a function of the thickness of the CFK component in consideration of the Fourier orders selected according to the preceding step as relevant Fourier orders; - parameterizing a digital model of the entire CFK component on the basis of the characteristic surface waves and waves as a function of the thickness of the CFK component into a finite element mesh, which is selected to be suitably fine for a display of the determined surface waves and waves comprising all relevant Fourier orders; and - calculating local stresses by means of the digital model by means of solving a system of equations, which is defined by the finite element mesh. - aerially determining a surface contour of the CFK component comprising a height and position of surface waves in the outer layer of the fiber composite material by means of suitable optical measuring methods; - selecting a suitable position for at least one sectional area through the layers of fiber composite material of the CFK component by means of the determined height and position of the surface waves; - analyzing and determining characteristic surface waves by means of a two-dimensional Fourier analysis using suitable filters and a selection of Fourier orders of the surface waves, wherein the filters and Fourier orders are selected such that a retransformation of the Fourier analysis provides for a sufficient reproduction of the optically determined surface contour; - determining the waves of the CFK component at the produced sectional area by the CFK component as a function of the thickness of the CFK component in consideration of the Fourier orders selected according to the preceding step as relevant Fourier orders; - parameterizing a digital model of the entire CFK component on the basis of the characteristic surface waves and waves as a function of the thickness of the CFK component into a finite element mesh, which is selected to be suitably fine for a display of the determined surface waves and waves comprising all relevant Fourier orders; and - calculating local stresses by means of the digital model by means of solving a system of equations, which is defined by the finite element mesh.