Contact Interaction Calculators

Knife-Edge and Plate Edge Contact

In this calculation, a contact of the knife-body across the edge of the flat plate with a thickness t is considered.

A body with a sharp edge is under a load F, which is transmitted to the edge of the plate of thickness t through the contact zone. As a result of calculations, contact stresses σ are determined at any point of the contact zone, which is given by the distance from the cutting edge L and the angle α of rotation relative to the line of the load action.

Knife-edge across plate edge contact

Calculation of Knife-edge across plate edge contact

INITIAL DATA

F - Load;

L - Distance to calculated point X;

t - Plate thickness;

α - Angle between load axis and line, connecting the calculated point X to the load point.

RESULTS DATA

σ - Stress at point X.

Metric Imperial

Load (F)

Distance (L)

Plate thickness (t)

Angle (a)

Stress at point X (σ)

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BASIC FORMULAS

Stress at point X:

σ = 2F*cos(α) / πL

INITIAL DATA

F - Load;

L - Distance to calculated point X;

t - Plate thickness;

α - Angle between load axis and line, connecting the calculated point X to the load point.

RESULTS DATA

σ - Stress at point X.

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