When you look over a data sheet for a specific product you will find loads of information from technical specs, to application uses, and how to apply the adhesive for maximize its features. Recently we discussed elongation and how this can be an important factor when selecting adhesives. Today we will look at Tensile Strength.
Tensile Strength – The maximum force or stress a material can withstand while being pulled apart from both ends before failing or breaking.
Tensile Strength is a key piece of data when selecting adhesives to determine the strength and durability of the material. This figure is often expressed as the pounds per inch of width (lbs./in. width) or N/100mm. For example, 3M VHB can have anywhere from 55 to 160 lbs./in^2 tensile strength. As long as the load applied via stretching is below the tensile strength of the material, the material will not fail. The elastic behavior of materials extends to a "yield point," which denotes when the deformations are completely recoverable. Adhesive tape has the added benefit of having a yield point that is very close if not identical to its normal tensile strength, so the material can withstand the tension over and over again.
Tensile Strength is important to note when using adhesive to bond materials. Bonded joints will face stresses of all sorts including tension (Tensile), compression, shear, cleavage, and peel. Applying an adhesive that cannot withstand the necessary stresses will result in failure of the adhesive and potentially failure from the parts you are bonding or the entire application.
|Elements||Tensile Strength (lbs/In^2)|
|Aluminum||5801 to 7251|
If you have your own question about adhesives don't hesitate to reach out! We have a live chat on our website or you can submit your question to our blog by filling out this simple contact form.