4 papers
Forces at the Sea Bed using a Finite Element Solution of the Mild Slope Wave Equation
S. J. Childs, J. W. Gonsalves
An algorithm to compute forces at the sea bed from a finite element solution to the mild slope wave equation is devised in this work. The algorithm is best considered as consisting…
Some Wave-Related, Heavy Mineral Placer Deposits
S. J. Childs, F. A. Shillington
Examples of heavy mineral placer deposits are presented in which wave reflection, refraction, diffraction and resonance would appear to have played a major concentrating role. Thei…
The Reason for the Efficiency of the Pian-Sumihara Basis
S. J. Childs, B. D. Reddy
A logical explanation as to why the choice of the Pian-Sumihara basis (as a linear basis to approximate stress) leads to greater efficiency in enhanced strain problems, is presente…
Incipient Motion Criteria for a Rigid Sediment Grain on a Rigid Surface
S. J. Childs
Criteria for the incipient motion of a rigid body initially resting on a rigid surface are formulated from first principles in this work. A modified Coulomb friction model and an a…