{"title":"Experimental investigation of the nonlinear behaviour of shallow spherical shells","authors":"J.D.W. Hossack","doi":"10.1016/0369-5816(65)90112-2","DOIUrl":"10.1016/0369-5816(65)90112-2","url":null,"abstract":"<div><p>This paper presents a brief review of some recent contributions in the field of instability of shallow spherical shells. The causes of the apparent inconclusive nature of earlier experimental investigations are examined. This is followed by a report of work carried out in such a manner as to eliminate, as far as possible, some of the factors responsible for experimental error. The results of an experimental investigation of the non-linear stress and deformation characteristics of shallow shell behaviour are presented. Good experimental agreement with theory is shown to be dependent on the preparation of uniform stress free specimens of accurate geometry and on the requirement that the shell be supported in a manner consistent with the assumptions of relevant theory.</p></div>","PeriodicalId":100973,"journal":{"name":"Nuclear Structural Engineering","volume":"1 3","pages":"Pages 285-294"},"PeriodicalIF":0.0,"publicationDate":"1965-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0369-5816(65)90112-2","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88192785","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Nomogram for determining shield thickness for point and line sources of gamma rays","authors":"C. Jönemalm","doi":"10.1016/0369-5816(65)90115-8","DOIUrl":"10.1016/0369-5816(65)90115-8","url":null,"abstract":"<div><p>A set of nomograms is given for the determination of the required shield thickness against gamma radiation. The sources handled are point and infinite line sources with shields of Pb, Fe, magnetite concrete (ϱ = 3.6), ordinary concrete (ϱ = 2.3) or water. The gamma energy range covered is 0.5 – 10 MeV. The nomograms are directly applicable for source and dose points on the surfaces of the shield. They can easily be extended to source and dose points in other positions by applying a geometrical correction.</p></div>","PeriodicalId":100973,"journal":{"name":"Nuclear Structural Engineering","volume":"1 3","pages":"Pages 324-331"},"PeriodicalIF":0.0,"publicationDate":"1965-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0369-5816(65)90115-8","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76557347","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Welding experience of the reactor pressure vessel for Tokai nuclear power station","authors":"Toshio Takaichi, Yoshio Ando","doi":"10.1016/0369-5816(65)90113-4","DOIUrl":"10.1016/0369-5816(65)90113-4","url":null,"abstract":"<div><p>The first nuclear power station in Japan is being constructed at Tokai-mura in Ibaraki Prefecture. The station is an advanced Calder Hall type. The electrical output is 166 MW. The pressure vessel was fabricated using 80 mm (<span><math><mtext>3</mtext><mtext>5</mtext><mtext>32</mtext><mtext> in.</mtext></math></span>) and 92 mm (<span><math><mtext>3</mtext><mtext>5</mtext><mtext>8</mtext><mtext> </mtext><mtext>in.</mtext></math></span>) thick aluminium killed steel made in Japan.</p><p>Each part of pressure vessel, bottom cap, belt 1, 2, 3, 4 and top cap were prefabricated, then lifted into the reactor building and assembled. Welding of pressure vessel was carried out by 75 skilled welders of Fuji Electric Co., Ltd.</p><p>Single sided welding of skirt to skirt forging, C/D nozzle to shell welding and C/D standpipe to nozzle welding were very difficult, particularly to get good penetration and to keep accurate positioning and verticality. As a result of good technical control, hard training of welders, sufficient preparations and preliminary experiments, this difficult work was completed successfully and smoothly to programme.</p></div>","PeriodicalId":100973,"journal":{"name":"Nuclear Structural Engineering","volume":"1 3","pages":"Pages 295-307"},"PeriodicalIF":0.0,"publicationDate":"1965-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0369-5816(65)90113-4","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91294406","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"On the delay time for bubble formation in water-moderated reactors","authors":"H.William McCurdy","doi":"10.1016/0369-5816(65)90119-5","DOIUrl":"10.1016/0369-5816(65)90119-5","url":null,"abstract":"","PeriodicalId":100973,"journal":{"name":"Nuclear Structural Engineering","volume":"1 3","pages":"Pages 345-346"},"PeriodicalIF":0.0,"publicationDate":"1965-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0369-5816(65)90119-5","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77763868","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Facility design problems associated with static firing of large nuclear rocket stages","authors":"Maxwell R. Morton","doi":"10.1016/0369-5816(65)90114-6","DOIUrl":"10.1016/0369-5816(65)90114-6","url":null,"abstract":"<div><p>At present, one of the promising methods of attaining interplanetary travel is the use of large (10 000 MW – 20 000 MW) nuclear rocket stages. However, the large quantities of radiation associated with a nuclear rocket during and after operation present unique problems. It is generally agreed: (1) that the use of a nuclear rocket for lift off (the first stage) is impractical; therefore, we need only concern ourselves with other than first stage vehicles; (2) that static firing of a nuclear stage prior to launch, as may be done with a chemical stage, is also impractical. Thus we are faced with the problem of sending into space a particular nuclear stage which has not previously been fired. Obviously success under such conditions will require even greater inherent reliability for a nuclear stage. An important step in achieving this extreme reliability is repeated, successful static test firings during development, under conditions simulating as closely as possible, those in space.</p><p>Numerous problems are encountered in the design of static firing facilities for large nuclear rocket stages. Some of these problems exist for any large second or third stage vehicle regardless of the type of engine used for propulsion. Others are peculiar only to a nuclear propelled vehicle or are made more severe by the presence of a nuclear environment. This paper discusses design problems specifically associated with the static firing of large nuclear rocket stages.</p></div>","PeriodicalId":100973,"journal":{"name":"Nuclear Structural Engineering","volume":"1 3","pages":"Pages 308-323"},"PeriodicalIF":0.0,"publicationDate":"1965-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0369-5816(65)90114-6","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85283366","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Aseismic design and dynamic analysis of nuclear power plants","authors":"K. Akino, H. Tajimi","doi":"10.1016/0369-5816(65)90009-8","DOIUrl":"10.1016/0369-5816(65)90009-8","url":null,"abstract":"<div><p>Some problems of the aseismic design for nuclear power plants are surveyed, and a proposed method of solution by dynamic analysis is illustrated with examples of the first Japanese power reactor JPDR (Japan Power Demonstration Reactor). Two major buildings of the JPDR represent different types of vibration mode. The square turbine building on the surface sand and concrete pile foundation is analysed as a swaying motion type structure, and the cylindrical containment vessel supported on the sandy shale is treated to be a rocking motion type. Gauges were mounted in the containment vessel to measure the vibration behavior caused by natural earthquakes for comparison with this calculation. Data so far obtained show fairly good agreement between the analysis and measurements.</p><p>This paper presentst he case of the swaying motion type. The case of the rocking motion type will be presented in part II, to be published in the next issue and compared with the observed data.</p></div>","PeriodicalId":100973,"journal":{"name":"Nuclear Structural Engineering","volume":"1 2","pages":"Pages 232-238"},"PeriodicalIF":0.0,"publicationDate":"1965-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0369-5816(65)90009-8","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83004272","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Book reviewKernenergieantriebe für handelsschiffe: 3. Jahrbuch der Studiengesellschaft zur Förderung der Kernenergieverwertung in Schiffbau und Schifffahrt e.V., Verlag Karl Thiemig KG, München (1964), 192 pages, 216 figs., 25 tables, DM 32,-","authors":"K. Repetzki","doi":"10.1016/0369-5816(65)90014-1","DOIUrl":"https://doi.org/10.1016/0369-5816(65)90014-1","url":null,"abstract":"","PeriodicalId":100973,"journal":{"name":"Nuclear Structural Engineering","volume":"6 1","pages":"257-258"},"PeriodicalIF":0.0,"publicationDate":"1965-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79958522","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}