Photoelastic effect which is the result of the external stress on the fiber causes inductive birefringence. In general, the photoleastic effect induces the differential group delay (DGD) between two orthogonal states of polarization (PSPs). Then the polarization mode dispersion (PMD) can be shown by DGD. In this paper, a digital emluator is present to validate a new method which uses PMD to pinpoint stress-location of optical-fiber cable .The major point about this new location method is how to pick up signal from a mass of random polarization states. Based on a waveplate model and Monte Carlo analysis, a more physical digital emulator is shown to find the possibility of the stress-location in optical fiber.