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Matched samples of chipboard were loaded in four-point bending under either a 7 hours loaded/17 hours unloaded cycle, a 17 hours loaded/7 hours unloaded cycle, or constant load in order to asses the effect of cyclic loading on creep deformation. Tests were carried out at three humidity levels (30, 45 and 90% RH) and at three stress levels (30, 45, and 60%(More)
The applicability of models for describing the short-term properties of chipboard were investigated using the results from experiments conducted on samples of a laboratory-made chipboard (comprised of Scots pine chips and urea formaldehyde resin), and sections of urea formaldehyde and Scots pine strips. The “rule of mixtures” equations, modified for short(More)
The development of rheological models to predict creep has led to the derivation of quite complex equations that can predict creep reasonably accurately. However, these models are conceptual and are not based on a fundamental understanding of the actual deformation processes occurring within the material. The concept of modelling creep using a chemical(More)
  • J. S. Mundy
  • Computer Vision for Interactive and Intelligent…
  • 2005
The problem of generic object recognition is discussed in relation to the current research emphasis in the computer vision community on learning methods for classz~cationM. utual information is proposed as a tool for identiying the salient features of a class and as a mechanism for constructing class recognizers from an engineering design standpoint. The(More)
The process of applying the rheological approach to describe creep deformation has been investigated using the 5-parameter model developed by Pierce and Dinwoodie (1977). A method utilising exponential curve fitting techniques was examined by attempting to produce fits to the first 6 months' data from long-term experiments (12 years). The procedure included(More)
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