Experimental Study on Mechanical Properties of Adhesive Materials
摘要
Adhesive bonding has become a preferred method in various industries due to its unique benefits that address specific challenges associated with conventional mechanical fastening and welding. The key advantage of adhesive joints over other traditional joining techniques (such as welding, riveting, bolting, and screwing) lies in their ability to enable the manufacturing of large-sized, cost-effective, and highly integrated structures. The development and improvement of mathematical models and analytical methods for the strength analysis and design of adhesive joints are critical for advancing adhesive bonding technology in practical applications. To design reliable and durable adhesive joints, it is essential to know the elastic and strength characteristics of the adhesive. These properties determine the stress distribution in the adhesive layer, the failure modes, and the overall performance of the joint. This paper presents the results of experimental study of key mechanical properties of adhesives. A series of tests were conducted to determine the shear modulus and tensile strength of two types of adhesives: VK-9 and 88-NP. The obtained experimental data can be used both for mathematical modeling of stresses in adhesive joint and for the development and improvement of failure criteria and methods of strength analysis and design of adhesive joints.