The invention provides a device and a method for testing the forming property of a
sheet material under the effect of
fluid pressure, belongs to the field of a
sheet material hydraulic forming technology, and aims at the problems that in a conventional
sheet material forming property test, real-time testing and accurate evaluation can not be hardly carried out under a fluid pressurizing condition, and dynamic sealing is hard to carry out under a fluid high-pressure condition due to that a sheet material
test sample is provided a non-
circular section. The technical points are as follows: an end cover is matched with clamping pieces in a manner of adopting a
piston cylinder; a connection region of the upper and lower clamping pieces is connected with the sheet material
test sample in a manner of adopting a cylindrical pin; and the testing method sequentially comprises the following steps of: placing a
test sample, combining a testing device, connecting a tester, applying
hydraulic pressure and downwards moving a lower chuck, taking out the
cut test sample and carrying out
size measurement. The matching by adopting the
piston cylinder manner can enable the sheet material test sample with a rectangular section to realize the fluid high-pressure dynamic sealing; and a simplified structure design of the device can enable the the
hydraulic pressure in a cavity and the sheet material extension rate to be independently and accurately controlled. By using the device and the method disclosed by the invention, shape and size diversified forming property tests on the sheet material test sample can be realized.