ISSN:0039-2103    

DOI:10.1111/j.1475-1305.1973.tb01790.x

出版商:Blackwell Publishing Ltd    

年代:1973

数据来源: WILEY

摘要:

Stress intensity factors have been determined by means of the frozen stress photoelastic technique for nozzle corner cracks in pressure vessel models. The model geometry was chosen to represent a nuclear reactor vessel with a radial branch, and cracks of varying depth were introduced longitudinally. The results were compared to experimental data obtained from burst tests, thus extending their scope.

ISSN:0039-2103    

DOI:10.1111/j.1475-1305.1973.tb01791.x

出版商:Blackwell Publishing Ltd    

年代:1973

数据来源: WILEY

摘要:

The paper describes an investigation in which the dynamic response of a vertical cantilever structure exposed to the natural turbulent wind was observed. The structure consisted of a steel tube 2 743 m (9 ft) high on the top of which was mounted a closed drum 609 6 mm (2 ft) diameter by 609 6 mm (2 ft) high. The deflexions of the drum on two orthogonal axes were measured and also the strains near the lower end of the steel tube. Wind velocity was measured with a hot–wire anemometer and all the measurements were recorded on a high speed ultraviolet recording galvanometer. The results are considered in two parts: (a) the response transverse to the wind direction (b) the response in the direction of the wind. The transverse displacements are accounted for by vortex shedding and the longitudinal displacements can be calculated from the wind velocity trace, given the requisite structural parameters. Many engineering structures can be considered as structures of one degree of freedom and it appears that the behaviour of all such structures can be predicted by the method used in this investigatio

ISSN:0039-2103    

DOI:10.1111/j.1475-1305.1973.tb01792.x

出版商:Blackwell Publishing Ltd    

年代:1973

数据来源: WILEY

摘要:

The preparation of a liquid rubber formulation for both cold and hot casting of photoelastic models is explained. Membranes and thin–walled structural models are amongst the examples considered qualitatively. Suggestions are made for the development of approximate but rapid methods of analysis. Of necessity the applications outlined are based on brief trials only and further development work is require

ISSN:0039-2103    

DOI:10.1111/j.1475-1305.1973.tb01793.x

出版商:Blackwell Publishing Ltd    

年代:1973

数据来源: WILEY

摘要:

The effect of a temperature change on a strain gauge installation may be to produce strain readings of a magnitude greater than the mechanical strain being recorded. This paper discusses some of the difficulties encountered in the measurement of strain. In particular, the selection of the most suitable type of self–temperature compensated strain gauge for a particular specimen and its associated wiring technique are considere

ISSN:0039-2103    

DOI:10.1111/j.1475-1305.1973.tb01794.x

出版商:Blackwell Publishing Ltd    

年代:1973

数据来源: WILEY

摘要:

The influence of the transverse sensitivity factor n on errors in the measurement of strain are discussed and it is concluded that, providing the factor n is within £0015, its effect may be disregarded in all normal applications. The determination of n on a gauge factor calibration rig is considered and an analysis made of the degree of accuracy attainable

ISSN:0039-2103    

DOI:10.1111/j.1475-1305.1973.tb01795.x

出版商:Blackwell Publishing Ltd    

年代:1973

数据来源: WILEY

ISSN:0039-2103    

DOI:10.1111/j.1475-1305.1973.tb01796.x

出版商:Blackwell Publishing Ltd    

年代:1973

数据来源: WILEY

ISSN:0039-2103    

DOI:10.1111/j.1475-1305.1973.tb01797.x

出版商:Blackwell Publishing Ltd    

年代:1973

数据来源: WILEY

ISSN:0039-2103    

DOI:10.1111/j.1475-1305.1973.tb01798.x

出版商:Blackwell Publishing Ltd    

年代:1973

数据来源: WILEY

ISSN:0039-2103    

DOI:10.1111/j.1475-1305.1973.tb01799.x

出版商:Blackwell Publishing Ltd    

年代:1973

数据来源: WILEY