Mechanical Property Testing of Metallic and Non-metallic materials

Yield strength (Re): It is the stress at which a metal material begins to undergo significant plastic deformation. Yield strength is an indicator of a material's ability to resist trace plastic deformation, which is of great significance for designing parts that operate within the elastic range. For example, in building structures, the yield strength of steel beams determines how much load they will undergo irreversible deformation.

Tensile strength: It is the maximum stress that a material can withstand before breaking. It reflects the ability of materials to resist fracture and is one of the most important strength indicators of metal materials. For example, in the manufacturing of steel wire ropes, tensile strength is a key parameter for evaluating their quality, determining the maximum tensile force that the steel wire rope can withstand.

Post fracture elongation: refers to the percentage of the elongation of the gauge length after the specimen is pulled apart compared to the original gauge length. It characterizes the plastic deformation ability of the material. For example, in the production of automotive stamping parts, materials with high elongation at break are more likely to be stamped into complex shapes without cracking.

Sectional shrinkage rate: refers to the percentage of the maximum reduction in cross-sectional area at the necking point of a specimen after it is pulled apart, compared to the original cross-sectional area. It is also an indicator for measuring the plasticity of materials and plays an important role in studying the deformation behavior of materials during the tensile process.