One of the classic methods of testing welding (welding) is by testing one-dimensional tensile stretching of welds made from the welding zone. Another method is by developing a real model simulating the welded compound and subsequently applying the actual load. In recent years, different simulation models have been used with CAD / CAE systems to solve such tasks. Yet they are compared with real experiments. Some of the input data is set by the experiment to be an adequate simulation test.