Material tensile strength test
Tianjin Rong Da Testing Co., Ltd. contact: Wang Jingfu
Cell phone: 13102238283 QQ:3144667033
Telephone: 022-23892103
Tensile strength test is also called tensile strength test or even pull off strength test.  
The 1 Principle
By two rod is composed of adherend joint butt joint with the glue, sample surface and vertical tensile force to the vertical axis of the sample, through the bonding failure, the tensile strength is calculated by unit of adhesive area to withstand the maximum load.
Tensile testing is a test method for determining the properties of materials under axial tensile loading. The data obtained from tensile test can determine the elastic limit, elongation, elastic modulus, proportional limit, area shrinkage, tensile strength, yield point, yield strength and other tensile properties. Testing of a series of properties of the material under tensile loading, also known as tensile testing. It is one of the basic methods of mechanical property testing, which is mainly used to test whether the materials meet the prescribed standards and study the properties of materials.
When the adhesive bonded joints are under tensile stress, there are three different types of joint forces.  
(1) the tensile stress and bonding surface perpendicular to each other, and the adhesive surface evenly throughout the bonding surface, the stress uniform tensile stress, tensile stress is also called.  
(2) the tensile stress is distributed over the whole surface of the adhesive, but the force is not evenly distributed.  
(3) compared with non uniform tensile force, it is not touch the center of the specimen, and on one end of the specimen; the stress surface is not symmetric, but asymmetric, this stretch called asymmetric stretch, sometimes the test called tearing test or splitting test, to distinguish the stripping