The Pasternak foundation can be seen as a Winkler foundation in which (shear) forces take care of a horizontal force transfer. The late Prof. Arnold Kerr described it as an elastic shear layer resting on a Winkler foundation. I myself see it more like a Winkler foundation of which the vertical springs are connected (e.g. halfway) by horizontal springs (bed mattress). Because an elastic shear layer does not allow a jump (step) in deflection at a joint, Prof Arnold Kerr solved this imperfection by introducing a Winkler foundation on top of the elastic shear layer (Kerr foundation). My question is: Implies the mathematical formulation of horizontal force transfer in the Pasternak foundation that it is in principle an elastic shear layer or is a (visual) representation of connected springs also possible? In that case, a jump/step in deflections at a joint will be possible. I have attached a paper on this "problem"

Regards

Ad Pronk ([email protected])