An electro-impulse de-icing system was developed to undertake the de-icing experiments.De-icing occurred when the circuit was trigged three times with the discharge voltage 500V.Meanwhile

the de-icing excitation exerting on the aluminum plate was numerically simulated in the eddy current field.A three dimensional finite model of ice and aluminum plate was introduced to analyze the ice failure in the nonlinear transient method by killing elements of the ANSYS FE(finite element) code.The ice failure criterion was checked by comparing the Labeas de-icing criterion with the first strength theory.It concludes that the latter is more suitable for simulating the de-icing process by loading the de-icing excitation in this test.