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Time scale in concrete fracture: a model based on partitions of unity
(Proceedings of the 4th International Conference on Fracture Mechanics of Concrete Structures (FRAMCOS4)Proceedings of the 4th International Conference on Fracture Mechanics of Concrete Structures (FRAMCOS4), 2001)
Intense research efforts have been put in the formulation of theories for crack initiation and propagation in concrete. Yet, little attention has been paid to the time-dependence of fracture, despite evidence of its ...
A p-adaptive scheme for overcoming volumetric locking during isochoric plastic deformation
(Solids, Structures and Coupled Problems in Engineering : ECCM-2001: 2nd European Conference on Computational MechanicsSolids, Structures and Coupled Problems in Engineering : ECCM-2001: 2nd European Conference on Computational Mechanics, 2001)
A p-adaptive scheme is developed in order to overcome volumetric locking in low order finite elements. A special adaptive scheme is used which is based on the partition of unity concept. This allows higher order polynomial ...
Multi-level analysis of localisation problems
(2001)
Localisation processes, such as shear banding and necking, have been investigated following a macroscopic and a microscopic approach. Both approaches have been formulated within a finite deformation plasticity framework. ...
Computational modelling of cracks in viscoplastic media
(Proceedings of the 10th International Conference on FractureProceedings of the 10th International Conference on Fracture, 2001)
A newly developed numerical model is used to simulate propagating cracks in a strain softening viscoplastic medium. The model allows the simulation of displacement discontinuities independently of a finite element mesh. ...
Discrete analysis of localisation in three-dimensional solids
(Proceedings of the European Congress on Computational Methods in Applied Sciences and Engineering (ECCOMAS'00)Proceedings of the European Congress on Computational Methods in Applied Sciences and Engineering (ECCOMAS'00), 2000)
A procedure is illustrated for the determination of the normal direction of a discontinuity plane within a solid finite element. Using so-called embedded discontinuities, discrete constitutive models can be applied within ...
Deformation behaviour of bitumen and bituminous mixes
(University of Cambridge, 2005-03-15)
The main goal of this dissertation is to develop simple and accurate models for the
transient monotonic and cyclic deformation behaviour of bitumen and asphalt mixes.
The first part of this dissertation is concerned with ...
Experimental investigations into high-altitude relight of a gas turbine
(University of CambridgeDepartment of Engineering, 2008-11-18)
This thesis describes experiments to investigate high-altitude relight of a lean direct injection (LDI) combustor. The features that make LDI technology less polluting in terms of NOx compared to conventional combustors ...
DOLFIN: Automated Finite Element Computing
(2009)
We describe here a library aimed at automating the solution of partial differential equations using the finite element method. By employing novel techniques for automated code generation, the library combines a high level ...
Diamond Schottky barrier diodes
(University of Cambridge, 2008-03-11)
Research on wide band gap semiconductors suitable for power electronic
devices has spread rapidly in the last decade. The remarkable results exhibited by
silicon carbide (SiC) Schottky batTier diodes (SBDs), commercially ...
Analysis of plasmid genes by phylogenetic profiling and visualization of homology relationships using Blast2Network
(2008-12-21)
Abstract Background Phylogenetic methods are well-established bioinformatic tools for sequence analysis, allowing to describe the non-independencies of sequences because of their common ancestor. However, the evolutionary ...