Engineering Computations: Volume 6 Issue 4

A 4‐node quadrilateral membrane element with in‐plane vertex rotations and modified reduced quadrature

Nielen Stander, Edward L. Wilson

An assessment is made of a 4‐node quadrilateral membrane element with one rotational and two translational degrees of freedom per node, as formulated by Taylor and Simo…

Occurrence of spurious mechanisms in computations of strain‐softening solids

René de Borst, Jan G. Rots

The behaviour of cracked finite elements is investigated. It is shown that spurious kinematic modes may emerge when softening type constitutive laws are employed. These…

A concrete material model based on non‐associated plasticity and fracture

Eduardo N. Dvorkin, Alberto M. Cuitiño, Gustavo Gioia

A concrete material model is presented. The model is based on non‐associated plasticity for the pre‐failure and ductile post‐failure regimes and fracture (smeared crack…

Finite element solution of turbulent pipe flows

Mo‐Hwa Wang, Klaus‐Jürgen Bathe

The primitive variable finite element formulation is used in a straightforward manner to solve for two turbulent pipe flows. The solution is based on the use of the…

A new partitioning strategy for efficient re‐analysis of large structural systems

Ahmed K. Noor, Jeanne M. Peters

A computational procedure is presented for the re‐analysis of large unsymmetric structural systems. The procedure is based on a novel partitioning strategy in which the…

A mixed finite element for laminated composite plates based on the use of bubble functions

Peter M. Pinsky, Raja V. Jasti

A new laminated composite plate finite element is proposed that is numerically stable and accurate in displacements and stresses, including transverse shear stress. The…

Numerical solutions of one‐dimensional rheological models of combined consolidation and creep

H.R. Thomas, K. Bendani

A solution algorithm which enables various rheological models of combined one‐dimensional consolidation and creep to be accommodated in a unified approach, is used to…

Accurate pore pressure calculation in undrained analysis

D.V. Griffiths, C.O. Li

A simple procedure for accurate calculation of pore pressures in undrained elasto‐plastic materials is described. An 8‐node element is used, with ‘reduced’ integration…