| Автор | G W Lewthwaite |
| Автор | R T Smith |
| Дата выпуска | 1967-07-01 |
| dc.description | Numerical analyses of stress redistribution in twisted rods and bent beams which are allowed to creep show that in these geometries three regions exist: a region in which the stress always rises, one in which the stress at first rises and then falls, and a third in which the stress always falls. The point separating the second and third regions is found analytically.When this point is used in place of the skeletal point in Ellington's analysis of the creep deflections of a helical spring, the analysis of Boardman et al. is obtained. This reconciles two apparently contradictory methods of analysis by showing that each is appropriate to a different period of time of the creep test.In addition, it is shown that a real spring of finite weight which is creeping may be considered to have an `effective' number of turns greater than that of the real spring by a factor which is a function of both the stress exponent of creep and the ratio of the spring weight to the tensioning load. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | On the analysis of creep tests using helical spring specimens |
| Тип | note |
| DOI | 10.1088/0508-3443/18/7/418 |
| Print ISSN | 0508-3443 |
| Журнал | British Journal of Applied Physics |
| Том | 18 |
| Первая страница | 1012 |
| Последняя страница | 1016 |
| Аффилиация | G W Lewthwaite; Dounreay Experimental Reactor Establishment, Dounreay, Caithness, Scotland |
| Аффилиация | R T Smith; Dounreay Experimental Reactor Establishment, Dounreay, Caithness, Scotland |
| Выпуск | 7 |
