What is stress concentration factor?

Stress concentration factor (Kt), is a dimensionless factor which is used to quantify how concentrated the stress is in a material. It is thus defined as a ratio of the highest stress in the element to the reference stress.

Which of the following Formulae can be used to calculate stress concentration factor for a material?

The appropriate modified stress concentration factor is defined by the following equation: Kf = 1 + q ∙ (Kt – 1), where Kt is the theoretical stress concentration factor for the given geometry, and q is the notch sensitivity ratio of the material.

What is stress concentration How will you account for stress concentration in design of machine parts?

Stress-concentration factors for different geometric shapes are found by using experimental techniques like photo-elasticity, grid methods, brittle-coating methods, and electrical strain-gauge methods. The finite-element method has also been used.

What is stress concentration factor Mcq?

Stress Concentration Factor is the ratio of nominal stress obtained by elementary equations for minimum cross-section and highest value of actual stress near discontinuity. Explanation: The stress concentration factor is just the reciprocal of that cited in the question.

What is stress concentration causes and method of reducing stress concentration?

It is observed that a single notch results in a high degree of stress concentration. The severity of stress concentration is reduced by three methods: (a) Use of multiple notches, (b) Drilling additional holes; and (c) Removal of undesired material.

What is meant by stress concentration explain how its value can be reduced?

Additional Notches and Holes in Tension Member (a). It is observed that a single notch results in a high degree of stress concentration. The severity of stress concentration is reduced by three methods: (a) Use of multiple notches, (b) Drilling additional holes; and (c) Removal of undesired material.