Guo Hong tape peeling tester is one of the common failure forms of bonded joints. Its characteristic is that when the bonded joint is acted by external force, the force does not act on the whole bonded surface, but only concentrates in a very narrow area at the end of the joint, which looks like a line. The stress on the glue is the linear stress we mentioned earlier. When the external force acting on this line is greater than the bonding strength of the adhesive, the joint will be damaged along the bonding surface under the action of peeling force. One of the test pieces used in the peeling test of the tape peeling tester is flexible material (such as thin metal skin, fabric, rubber, leather, etc. ), and the other specimen can be rigid material (such as thick metal beam, etc.). ) or may be a flexible material. Because at least one specimen is made of flexible material, when the joint bears peeling force, the flexible part of the adherend first undergoes plastic deformation, and then the bonded joint is slowly torn. For example, the bonding between fabrics belongs to the bonding between skin and honing bar.