Shear force testing is a method used to determine the strength and durability of materials when subjected to forces that cause sliding between layers. This type of testing is essential in various industries, including construction and manufacturing, to ensure that materials can withstand operational stresses without failing. During the test, a sample material, such as metal, wood, or composite, is placed between two surfaces. A force is applied parallel to the material's surface until it fails. The results help engineers and designers select appropriate materials for specific applications, ensuring safety and reliability in structures and products.