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Now showing items 91-100 of 163
Discontinuous modelling of strain localisation and failure
(Delft University of Technology, 2001-06-12)
The computational simulation of failure in solids poses many challenges. A proper understanding of how structures respond under loading, both before and past the peak load, is important for safe and economical constructions. ...
Make-buy decisions in the face of radical innovations.
(University of Cambridge, 2004-10-26)
Some research in the area of make-buy decisions for new technologies suggests that it is a good
idea for a company to pursue a fairly rigorous “make” policy in the early days of a potentially
disruptive innovation. Other ...
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 ...
A formulation of the autoregressive HMM for speech synthesis
(Department of Engineering, University of Cambridge, 2009-08-31)
We present a formulation of the autoregressive HMM for speech synthesis and compare it to the standard HMM synthesis framework and the trajectory HMM. We give details of how to do efficient parameter estimation and synthesis ...
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 ...
The first step in the development of text mining technology for cancer risk assessment: identifying and organizing scientific evidence in risk assessment literature
(2009-09-22)
Abstract Background One of the most neglected areas of biomedical Text Mining (TM) is the development of systems based on carefully assessed user needs. We have recently investigated the user needs of an important task yet ...