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Mechanical testing methods317316 Materials testingIntroductiongunt6 Materials testing studies the behaviour of materials under dif-ferent loads. In particular, the relationship between the acting forces and the resulting deformation and the limit stresses that lead to failure of components are characteristic values obtained from the testing process are used for materials development, designing components and in quality assurance. There is a range of standardised testing methods to characterise the mechanical properties of materials as precisely as possible:Tensile test to determine the tensile strength and elongation at fractureThe tensile test is the most important testing method in destructive materials testing. A standardised specimen with a known cross section is loaded uniformly with relatively low increasing force in the longitudinal direction.

tional area to be applied. The shear strength determined in the shear test is important in the design of bolts, rivets and pins, as well as for calculating the force required for shears and presses. F ¡{! 4(¡{! 2(¡{! 1(¡{! 1(¡{! 2(¡{! 3(F F τ = F 2 · A Shear strength in the double-shear method τ shear strength, F force, A shearing surface

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