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- Cottrell, F.R. (author), Merrill, E.W. (author), Smith, K.A. (author) journal article 1970
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Smith, E. (author)Structures representative of the visible weld heat-affected zone (HAZ) of a semi-killed C - Mn steel and a fully killed and normalised aluminium grain - refined C - Mn steel have been produced by means of a simulation technique. The Charpy V - notch impact properties have been assessed and related to microstructure. The only significant...report 1970
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Smith, E. (author), Apps, R.L. (author)A simulation technique has been employed to exannine the structures and properties of the heat affected zone in single and multipass submerged arc welds in QT 35 steel fora range of heat inputs i.e. 1.2, 2.1, and 4.2 kJ/mm (30, 54, and 108 kJ/in). Mechanical properties were assessed using Charpy V-notch, tensile and hardness tests and related to...report 1970
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Allen, D. (author), Smith, E. (author), Apps, R.L. (author)Notch toughness, tensile and hardness properties of a normalised and tempered Mn-Cr-Mo-V steel have been determined after thermal cycling to 1275º C in simulation of thermal cycles experienced in the coarse grained region of the heat affected zone (HAZ). The metallurgical structure was investigated by means of optical microscopy and electron...report 1970
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Kellock, G.T.B. (author), Smith, E. (author), Sollars, A.R. (author)Single and double thermal cycle simulation of heat affected zone (HAZ) structures has been used to study the structural and property changes produced by submerged arc welding of HY 80 steel. The effectiveness of the temper bead technique and post-weld heat treatment at 650°C have also been examined, Marked degradation of impact properties occurs...report 1971
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- Smith, J.M. (author) public lecture 1972
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Campbell, D.J. (author), Apps, R.L. (author), Smith, E. (author)Submerged arc welds were prepared in quenched and tempered steel plates using a mild steel wire, two low alloy steel wires, and commercially available fluxes. Heat inputs of 1.2, 2.2, and 4.3 KJ/mm were used for each wire/flux combination and in each case the preheat/ interpass temperature was maintained within the range 120 - 150º C. Sections...report 1972
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Enthoven, M.E.E. (author), Smith, J. (author)Recently a new method has been developed to determine the interference characteristics of ventilated walls in transonic wind tunnels, based on the comparison of experimentally determined and theoretically calculated interference drag forces on two-dimensional models. Pressure measurements and wake surveys on seven two-dimensional models, with...report 1972
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Smith, P.D. (author)A calculation method has been developed which uses the compressible forms of the boundary-Iayer momentum integral and entrainment equations in a genera I, curvilinear surface coordinate system in which the axes are not necessarily orthogonal. Both the Mager and Johnston representations of the crossflow velocity profile can be used. The set of...report 1972
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Smith, E. (author)Dimensional changes and the development of cracking in the Charpy V-notch impact test have been studied using a low energy blow technique. Notch opening, angle of bend, notch root contraction and lateral expansion are shown to be proportional to the energy of the low blow which does not cause complete fracture and to be relatively independent of...report 1973
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O'Neill, P.H. (author), Smith, R.J. (author)This Report describes the results of laboratory fatigue tests on riveted joints, half of which had been impregnated with a water-displacing, oil-based penetrant which is commonly being used in airline service to combat corrosion. The results showed that the lives of the treated specimens were significantly shorter than those of the untreated...report 1973
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Smith, J. (author)The report describes experiences with the Garabedian and Korn program for the computation of compressible potential flows, with or without shocks, both supercritical shockless flows and flows with shock waves. Computations for a number of quasi-elliptical aerofoils indicated that the conformal mapping procedure should be handled with care....report 1974
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Hindson, W.S. (author), Smith, R.E. (author)The influence of wind, wind shears and turbulence on the approach and landing tasks of STOL and V jSTOL aircraft has become of significant concern for this evolving class of flight vehicles, particularly during instrument flight operations. Flight experiments have been carried out to assess the considerations in alleviating the effects of a long...report 1976
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- van den Berg, B. (author), Cousteix, J. (author), Fanneløp, T.K. (author), Hirschel, E.H. (author), Smith, P.D. (author) report 1978
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- Dow, R.S. (author), Hugill, R.C. (author), Clarck, J.D. (author), Smith, C.S. (author) conference paper 1981
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Smith, J. (author)A "measured-boundary-condition" method for determining 2D wall interference has been developed. It applies measured "wall" pressure distributions and a model representation to determine the 2D interference flow field associated with the presence of the test section walls. Special attention has been paid to the model representation. The...report 1981
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- Smith, W.E. (author) conference paper 1982
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Smith, J. (author)Modern developments in wind tunnel wall correction methods are for a major part directed towards the use of in situ measured boundary conditions in order to eliminate the need to describe the complicated aerodynamic characteristics of test section walls. This paper presents a short general review of the principles of such methods for 2D flow....report 1982
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Burger, J.W. (author), Visser, R.J. (author), van den Heuvel, B. (author), Smith, E.C. (author)The closure of the Amtall Khal was executed in the period December '81 to March '82 as a further experiment of the "Study of Methods for Closing Tidal Channels in Bangladesh”. The closure was executed as an Early Implementation Project on Flood Control and Irrigation in Bangladesh, financed by Netherlands Technical Assistance Programme. A team...report 1982
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Woodrooffe, J.H.F. (author), Morisset, L.E. (author), Smith, C.A.M. (author)A simplified mathematical solution to predict transient off tracking of multiple vehicle combinations is presented. The generalized equations assume a constant radius curve of any angular duration with a tangent lead in and run out. The validated solution yields the off tracking of a vehicle or vehicle combination with respect to a track mounted...report 1983