The paper presents detailed micromechanical finite element simulations of composite materials with soft materials undergoing large macroscopic bending deformation. The simulations allow the study of fibre microbuckling under bending, including the kinematics of the fibres, as well as the strains in the matrix. These simulations lead to a simple analytical model that allows a quite accurate esti...

-A method of discretizing the die boundary conditions is considered for the analysis of metal forming processes by the rigid viscoplastic finite element method. The method is natural to the finite element method and general enough to treat the boundary conditions of arbitrarily shaped dies in a unified way. Solutions of the spike forging process are obtained by using the method. The deformation...

In this paper we study the thermal effective behaviour for 3D multiphase composite material consisting of three isotropic phases which are the matrix, the inclusions and the coating media. For this purpose we use an accelerated FFT-based scheme initially proposed in Eyre and Milton (1999) to evaluate the thermal conductivity tensor. Matrix and spherical inclusions media are polymers with simila...

1 Department of Mathematics, The Chinese University of Hong Kong, Shatin, Hong Kong, China; E-Mail: [email protected] 2 Center for Numerical Porous Media (NumPor), King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia 3 Department of Mathematics, Texas A&M University, College Station, TX 77843, USA; E-Mails: [email protected] (W.T.L.); ustcrenjun@gma...

A Finite Element Method for Fully Nonlinear Water Waves Xing Cai,∗ Hans Petter Langtangen,† Bjørn Fredrik Nielsen,∗ and Aslak Tveito∗ ∗Department of Informatics, University of Oslo, P.O. Box 1080 Blindern, N-0316, Oslo, Norway; and †Mechanics Division, Department of Mathematics, University of Oslo, P.O. Box 1053 Blindern, N-0316, Oslo, Norway E-mail: [email protected], [email protected], bjornn@i...

Modern energy demands led the scientific community to renewable energy sources, such as ocean wave energy. The present work describes a model for a cost efficient rotary electrical generator, optimized for ocean wave energy conversion. The electrical power, supplied by low speed mechanical movement, requires the use of electrical machinery capable of generating high amounts of torque. Among the...

We develop the convergence analysis for a numerical scheme proposed for approximating the solution of the elliptic problem L u = − ∂ ∂xi aij(x/ ) ∂ ∂xj u = f in Ω, u = 0 on ∂Ω, where the matrix a(y) = (aij(y)) is symmetric positive definite and periodic with period Y . The major goal is to develop a numerical scheme capturing the solution oscillations in the scale on a mesh size h > (or h >> )....

The stability of the quay wall incorporating large diameter cylinders is of great concern at the Yangshan Port, China, owing to severe marine environment. In this study, finite element analysis is carried out to evaluate the stability of a trial quay wall during construction. The single cylinder is examined in terms of turnover failure subjected to a five year design wave action. The case when ...

An investigation into the effect of countersunk depth, plate thickness, countersunk angle and plate width on the stress concentration around countersunk hole is carried out with the help of finite element analysis. The variation of stress concentration with respect to these parameters is studied for three types of loading viz. uniformly distributed load, uniformly varying load and functionally ...