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Sheet Pile Interlock Behavior: A Moving Contract Problem

by Munfong Chan, Virginia Polytechnic Inst &, State Univ, Blacksburg, VA, USA,
Richard M. Barker, Virginia Polytechnic Inst &, State Univ, Blacksburg, VA, USA,



Document Type: Proceeding Paper

Part of: Electronic Computation

Abstract:

The finite element method is used to analyze the behavior of sheet pile interlocks subjected to an uniaxial pull test. The thumb and finger of the interlock provide three contact points for connection with another sheet pile. To realistically model its behavior an Updated Langrangian approach is used to accommodate large deformations and a Von Mises yield criteria is used to detect beginning of plastic behavior. An algorithm is presented which allows nodes on the contact surfaces to slide with respect to one another. A modified Newton-Raphson iterative technique together with an incremental scheme is employed to solve the set of nonlinear equilibrium equations. Using eight-node isoparametric elements, this formulation is successfully applied to an actual sheet pile interlock shape whose behavior is monitored.

Subject Headings: Pile tests | Sheet piles | Finite element method | Material tests | Material properties | Tension members | Synthetic materials

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