Spring Coefficient Calculator v1

Subject

A spring coefficient is the force required to deflect (or deform) an elastic structural element or body by a unit length (1.0 metre, inch, etc.) and is used to define an expected deflection due to a given load and/or its natural frequency.

A spring coefficient describes a linear relationship between force (F) and deflection (y); i.e. F ∝ y

Spring Coefficient calculates this property for a number of structural elements including; columns, shafts, springs, tensile cords and beams & plates with various end/edge support conditions.

The spring coefficient calculator is not limited to plain or singular elements. Quite complex structural frames such as bridges or crane booms may be calculated with equal accuracy if its material(s) and sectional properties are known, consistent and obey Hooke's law.

For help using this calculator see Technical Help

Spring Coefficient Calculator - Options

Beams

Calculates the spring coefficients for six beam configurations with fixed, simply-supported, guided and free ends.

You enter:	and the Spring Coefficient calculator will provide:
Young's modulus Second moment of area Beam length Distance to load	Spring coefficient

Shafts

Calculates the spring coefficient of a rotating shaft with a torsional load (applied torque).

You enter:	and the Spring Coefficient calculator will provide:
Young's modulus Polar moment of inertia Shaft length Poisson's ratio	Spring coefficient

Columns

Calculates the spring coefficient of a longitudinal column under an axial load, either tensile or compressive.

You enter:	and the Spring Coefficient calculator will provide:
Young's modulus Cross sectional area Column length	Spring coefficient

Plates

Calculates the spring coefficient of a circular plate with its outer-edge fixed or simply supported and a small force applied anywhere on its surface.

You enter:	and the Spring Coefficient calculator will provide:
Young's modulus Plate Diameter Distance (from edge) to load Load radius Plate Thickness Poisson's ratio	Spring coefficient

Coiled Springs

Calculates the spring coefficient of a coiled spring made from flat-strip with a tensile load applied at its outer end.

You enter:	and the Spring Coefficient calculator will provide:
Young's modulus Second moment of area Spring length	Spring coefficient

Helical Springs

Calculates the spring coefficient of a helical spring under an axial load, either tensile or compressive.

You enter:	and the Spring Coefficient calculator will provide:
Young's modulus Spring mean radius Wire diameter Number of coils Poisson's ratio	Spring coefficient

Tension Cords

Calculates the spring coefficient of a cord under tension with a load applied half-way along its length.

You enter:	and the Spring Coefficient calculator will provide:
Cord tension Cord length	Spring coefficient

Check minimum system requirements