engleski

Crack-tip caustics in mechanically anisotropic materials

This contribution focuses on the theoretical development of the method of caustics and its applicability to anisotropic materials. The method displays its full power when employed in conjunction with interactive numerical data reduction and evaluation procedures. For the analysis the selection of data points along the experimentally recorded caustic curve is done automatically, the selected points are marked on the screen and if necessary interactive correction of the positions is possible. Final proof of the correctness of the result of the automatic data point selection is achieved by comparing for acceptable coincidence the numerically generated caustic determined on the basis of the results of the data-reduction technique with the experimentally recorded caustic.

optical method of caustics; fracture mechanics; stress intensity factor; anisotropic material

nije evidentirano