By Sharon Rosenberg, Kathleen Meade
With either cookbook-style examples and in-depth verification historical past, amateur and specialist verification engineers will locate details to ease their adoption of this rising Accellera typical.
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Additional info for A Practical Guide to Adopting the Universal Verification Methodology (UVM)
It may therefore be concluded that, at least during reciprocating line contact, the mechanical properties of the composite surface layer appear to influence initial wear much more than the concentration and distribution of PTFE. It is possible that the latter could well become more significant in distributed contact conditions, but further work is needed to substantiate this. Marked effects of the PTFE concentration on the steady-state wear rates of bulk materials are, of course, well-known ( 2 3 ) .
It is concluded that the strength of the worn surface layer is a more important parameter than its composition. 1 most important are shown in Fig. 2 and it is with the effects of these on the initial stages of wear that the present paper is concerned. Considerable information has been obtained from experiments with bulk materials on apparatus of the pin-ring or pin-disc type, and this is reviewed in the first part of the paper. Its relevance to the initial stages of wear of fabric-reinforced, bearing liners is then discussed, and attention is finally focussed on the role of the structure and composition of these liner materials.
I) Bearing in mind that the form of a stress-strain curve is related to specimen geometry, what form of specimen and technique should be used to define the relationship between (τ) and (y)which is relevant to thin film behaviour? (ii) Poes the initial structure of the material have a significant effect on the form of the relationship between (τ) and (γ)? If so, is there a danger of ambiguity if 5 for example, data from a wrought material is used to explain behaviour of an electro deposited or sprayed coating, for example?
A Practical Guide to Adopting the Universal Verification Methodology (UVM) by Sharon Rosenberg, Kathleen Meade