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Optimisations for quadrature representations of finite element tensors through automated code generation
(ACM Transactions on Mathematical Software, 2010)
We examine aspects of the computation of finite element matrices and vectors which are made possible by automated code generation. Given a variational form in a syntax which resembles standard mathematical notation, the ...
A combined experimental-numerical study to tensile behaviour of limestone
(Proceedings of the 3rd International Conference on Emerging Technologies in Non Destructive TestingProceedings of the 3rd International Conference on Emerging Technologies in Non Destructive Testing, 2003-01-01)
In this paper, a combined experimental-computational study of double-edge notched stone specimen subject to cyclic tensile loading is presented. In the experimental part, the load-deformation response and the local ...
A précis of some recent developments in computational failure mechanics
(International Journal of Numerical Methods in Heat and Fluid FlowInternational Journal of Numerical Methods in Heat and Fluid Flow, 2004)
A concise overview is given of various numerical methods that can be used to analyse localisation and failure in engineering materials. The importance of the cohesive-zone approach is emphasised and various ways of ...
Simulating discontinuities in a gradient-enhanced continuum
(Proceedings of the International Conference on Structural Integrity and FractureProceedings of the International Conference on Structural Integrity and Fracture, 2002)
A continuum-discrete model for failure in quasi-brittle materials is presented. The continuum is regularised through the introduction of gradient terms into the constitutive model. At the transition to discrete failure, ...
Analysis of delamination growth with discontinuous finite elements
(Solids, Structures and Coupled Problems in EngineeringSolids, Structures and Coupled Problems in Engineering, 2001)
In this contribution a new finite element is presented for the simulation of delamination growth in thin layered composite materials. The element is based on the solid-like shell element, a volume element that can be used ...
Discontinuous modelling of crack propagation in a gradient-enhanced continuum
(2002)
A numerical model for the description of the combined continuous/discontinuous failure in a regularised strain-softening continuum is proposed. The continuum is regularised through the introduction of gradient terms into ...
Discontinuities in regularised media
(2003)
Discontinuous interpolation of the problem fields in non-local and rate-dependent media is considered. The necessity of discontinuities in the analysis of failure processes and some of the requirements for the introduction ...
Formulation of continuous/discontinuous Galerkin methods for strain gradient-dependent damage
(Strength Fracture and ComplexityStrength Fracture and Complexity, 2006)
Continuum damage models are widely used to represent the development of microscopic defects that coalesce into a macroscopic crack. The microscopic defects cause a progressive weakening or softening of the material (damage). ...
A continuous/discontinuous Galerkin formulation for a strain gradient-dependent damage model: 2D results
(Proceedings of the 6th World Congress on Computational Mechanics in Conjunction with theputational Mechanics 2nd Asian-Pacific Congress on Computational MechanicsProceedings of the 6th World Congress on Computational Mechanics in Conjunction with theputational Mechanics 2nd Asian-Pacific Congress on Computational Mechanics, 2004)
The numerical solution of strain gradient-dependent continuum problems has been hindered by continuity demands on the basis functions. The presence of terms in constitutive models which involve gradients of the strain eld ...
A continuous/discontinuous Galerkin formulation for a strain gradient-dependent damage model
(4th European Congress on Computational Methods in Applied Sciences and Engineering (ECCOMAS)4th European Congress on Computational Methods in Applied Sciences and Engineering (ECCOMAS), 2004)
The numerical solution of strain gradient-dependent continuum problems has been hindered by continuity demands on the basis functions. The presence of terms in constitutive models that involve gradients of the strain field ...