The contact force in a composite laminated plate is calculated using the formula F = k * δ, where F is the contact force, k is the stiffness of the plate, and δ is the displacement of the plate. This formula assumes that the contact force is proportional to the stiffness and displacement of the plate.
The stiffness of a composite laminated plate is affected by several factors, including the material properties of the layers, the thickness and orientation of the layers, and the type of loading applied to the plate. Other factors such as environmental conditions can also affect the stiffness of the plate.
The plate stiffness in a composite laminated plate can be determined by calculating the bending stiffness and shear stiffness of the individual layers and then combining them using appropriate equations. The overall plate stiffness can also be determined experimentally by testing the plate under different loading conditions.
There are several methods for calculating the contact force in a composite laminated plate, including analytical methods such as the stiffness method and the finite element method, as well as experimental methods such as load cell measurements and strain gauge measurements. The most appropriate method to use will depend on the specific application and available resources.
To optimize the plate stiffness in a composite laminated plate, the material properties, layer thicknesses, and orientations should be carefully chosen to achieve the desired stiffness and minimize any potential defects or weaknesses in the plate. Advanced techniques such as adding reinforcements or using specialized layup patterns can also be used to improve the stiffness of the plate.