All Outputs (6)

Mixed enrichment for the finite element method in heterogeneous media (2014)
Journal Article
Diwan, G., Mohamed, M., Seaid, M., Trevelyan, J., & Laghrouche, O. (2015). Mixed enrichment for the finite element method in heterogeneous media. International Journal for Numerical Methods in Engineering, 101(1), 54-78. https://doi.org/10.1002/nme.4795

Problems of multiple scales of interest or of locally nonsmooth solutions may often involve heterogeneous media. These problems are usually very demanding in terms of computations with the conventional finite element method. On the other hand, differ... Read More about Mixed enrichment for the finite element method in heterogeneous media.

Characteristics of group velocities of backward waves in a hollow cylinder (2014)
Journal Article
Cui, H., Lin, W., Zhang, H., Wang, X., & Trevelyan, J. (2014). Characteristics of group velocities of backward waves in a hollow cylinder. The Journal of the Acoustical Society of America, 135(6), 3398-3408. https://doi.org/10.1121/1.4872297

It is known that modes in axially uniform waveguides exhibit backward-propagation characteristics for which group and phase velocities have opposite signs. For elastic plates, group velocities of backward Lamb waves depend only on Poisson's ratio. Th... Read More about Characteristics of group velocities of backward waves in a hollow cylinder.

Boundary element simulation of fatigue crack growth in multi-site damage (2014)
Journal Article
Price, R., & Trevelyan, J. (2014). Boundary element simulation of fatigue crack growth in multi-site damage. Engineering Analysis with Boundary Elements, 43, 67-75. https://doi.org/10.1016/j.enganabound.2014.03.002

This paper presents an efficient and automatic scheme for modelling the growth of multiple cracks through a two-dimensional domain under fatigue loading based on linear elastic fracture mechanics. The dual boundary element method is applied to perfor... Read More about Boundary element simulation of fatigue crack growth in multi-site damage.

Dynamically-controlled variable-fidelity modelling for aircraft structural design optimisation (2014)
Journal Article
Allen, J., Coates, G., & Trevelyan, J. (2014). Dynamically-controlled variable-fidelity modelling for aircraft structural design optimisation. Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering, 228(8), 1434-1449. https://doi.org/10.1177/0954410013493074

Structural mass optimisation of an aircraft design is important in increasing the likelihood that a high quality airframe is designed of minimal weight whilst providing necessary resistance to load. Analysis of such structures is often performed at a... Read More about Dynamically-controlled variable-fidelity modelling for aircraft structural design optimisation.

Structural optimisation based on the boundary element and level set methods (2014)
Journal Article
Ullah, B., Trevelyan, J., & Matthews, P. (2014). Structural optimisation based on the boundary element and level set methods. Computers and Structures, 137, 14-30. https://doi.org/10.1016/j.compstruc.2014.01.004

A new method of structural topology optimisation is proposed in which an evolutionary approach is used with boundary element and level set methods. During the optimisation iterations, the proposed method automatically introduces internal cavities and... Read More about Structural optimisation based on the boundary element and level set methods.

The equal spacing of N points on a sphere with application to partition-of-unity wave diffraction problems (2014)
Journal Article
Peake, M., Trevelyan, J., & Coates, G. (2014). The equal spacing of N points on a sphere with application to partition-of-unity wave diffraction problems. Engineering Analysis with Boundary Elements, 40, 114-122. https://doi.org/10.1016/j.enganabound.2013.11.020

This paper addresses applications involving the selection of a set of points on a sphere, in which the uniformity of spacing can be of importance in enhancing the computational performance and/or the accuracy of some simulation. For the authors, the... Read More about The equal spacing of N points on a sphere with application to partition-of-unity wave diffraction problems.