SU637703A1 - Deformation determining method - Google Patents
Deformation determining methodInfo
- Publication number
- SU637703A1 SU637703A1 SU772488074A SU2488074A SU637703A1 SU 637703 A1 SU637703 A1 SU 637703A1 SU 772488074 A SU772488074 A SU 772488074A SU 2488074 A SU2488074 A SU 2488074A SU 637703 A1 SU637703 A1 SU 637703A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- determining method
- deformation determining
- moire
- raster
- image
- Prior art date
Links
Landscapes
- Length Measuring Devices By Optical Means (AREA)
Description
Способ осуществл ют слеауюшим образом .The method is carried out in the following way.
На исследуемый объект нанос т растр 1сетку ), деформируют его, фотографируют деформированный растр и на полученное негативное изображение нанос т, например , царапанием, пол рную систему коораинат , и получают позитивное изображение . Затем совмещают полученные изображени , поворачивают одно из них относительно другого вокруг центра системы координат и регистрируют картину муаровых полос, которые вл ютс лини ми частных производных перемещений по угловой координате. Затем изготавливают прозрачное позитивное изображение деформированного растра в другом масштабе и совмещают- его с исходным негативным изображением дeфopмиpoвa rнoгo растра так, чтобы центры систем координат и линии начала отсчета угловых координат совпали, и получают картину муаровых по . лос, вл ющихс лини ми частных производных перемещений по радиусу. По кар тинам муаровых полос определ ют деформации .A grid (grid) is applied to the object under study), it is deformed, a deformed raster is photographed and a negative image is applied onto the resulting negative image, for example, by scratching the polar system, and a positive image is obtained. Then they combine the obtained images, rotate one of them relative to the other around the center of the coordinate system, and record a pattern of moire stripes, which are lines of partial derivatives of displacements along the angular coordinate. Then a transparent positive image of the deformed raster is made on a different scale and combined with the original negative image of the deformity of the raster so that the centers of the coordinate systems and the origin line of the angular coordinates coincide and get a moire pattern. los, which are lines of partial derivatives of displacements along a radius. Deformations are determined from the patterns of the moire strips.
Изобра 1 :ение позвол ет получить компоненты тензора деформации в пол рных . координатах при использовании любой системы растров, что расшир ет круг задач , ре111аек ых с тгрименеиием метода муара .Image 1: allows to obtain the components of the strain tensor in polar. coordinates when using any raster system, which expands the range of problems that have been solved using the moire method.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU772488074A SU637703A1 (en) | 1977-05-23 | 1977-05-23 | Deformation determining method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU772488074A SU637703A1 (en) | 1977-05-23 | 1977-05-23 | Deformation determining method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU637703A1 true SU637703A1 (en) | 1978-12-15 |
Family
ID=20709852
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU772488074A SU637703A1 (en) | 1977-05-23 | 1977-05-23 | Deformation determining method |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU637703A1 (en) |
-
1977
- 1977-05-23 SU SU772488074A patent/SU637703A1/en active
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