3 4 Apparatus for adding bending stress three-point and four-point

摘要

The present design relates to a combined 3-point and 4-point bending stress application device, and more specifically, a 3-point or 4-point bending stress can be applied to the test specimen during the stress corrosion cracking test of the specimen through corrosion by corrosion gas and corrosion solution. It relates to a three-point and four-point combined bending stress application device. The combined 3-point and 4-point bending stress adding device according to the present invention is a bending stress adding device, comprising: a test piece support 100 on which the test piece 400 is supported on the inside; A pressurizing means 200 which is coupled to the test piece support 100 so as to be elevating and adds a load to the test piece 400; And a stress converting means 300 detachably coupled to a lower portion of the pressing means 200.