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- J R Willis, A B Movchan
- 2007

Dynamic weight functions are discussed, for arbitrary time-dependent loading of a plane semi-innnite crack extending at constant speed in an innnite isotropic elastic body. Then, the weight function appropriate to the case of general normal (or Mode I) loading is constructed explicitly, employing Fourier transforms to develop and solve a Wiener-Hopf… (More)

The paper addresses the problem of correlation within an array of parallel dislocations in a crystalline solid. The first two of a hierarchy of equations for the multi-point distribution functions are derived by treating the random dislocation distributions and the corresponding stress fields in an ensemble average framework. Asymptotic reasoning,… (More)

- J Richard Pamela Willis, Grant Turner, Nam Julian, P E Tran
- 2014

UNLABELLED
The purpose of this study was to examine the extent to which adults who do not stutter can predict communication-related attitudes of adults who do stutter. 40 participants (mean age of 22.5 years) evaluated speech samples from an adult with mild stuttering and an adult with severe stuttering via audio-only (n=20) or audio-visual (n=20) modes to… (More)

- A B Movchan, J R Willis
- 2007

Dynamic weight functions are constructed for general time{dependent shear loading of a plane semi{innnite crack propagating with constant speed in an innnite isotropic elastic body. The use of Fourier transforms reduces the problem to the analysis of a matrix Wiener{Hopf equation. The solution of the Wiener{Hopf problem is presented. An expression is… (More)

- N V Movchan, J R Willis
- 2007

An axi{symmetric problem for a penny{shaped crack bridged by bres is considered. The study is reduced to the analysis of a hy-persingular integral equation with respect to the relative crack{face separation over a circular domain occupied by crack. The special case of a large crack subjected to Mode{I loading is examined. A matched asymptotic expansions… (More)

- N V Movchan, J R Willis
- 2007

A long matrix crack in a unidirectional bre{reinforced composite, perpendicular to the bre direction and subjected to Mode{I loading, is considered. The intact composite material is modelled as homogeneous linearly elastic and the bridging bres are replaced by restraining tractions acting on the crack surfaces. The problem is formulated in terms of a… (More)

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