SU932358A1 - Device for elastoplastic deformation of length specimens in compression - Google Patents
Device for elastoplastic deformation of length specimens in compression Download PDFInfo
- Publication number
- SU932358A1 SU932358A1 SU803002843A SU3002843A SU932358A1 SU 932358 A1 SU932358 A1 SU 932358A1 SU 803002843 A SU803002843 A SU 803002843A SU 3002843 A SU3002843 A SU 3002843A SU 932358 A1 SU932358 A1 SU 932358A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- compression
- sample
- elastoplastic deformation
- wedges
- length specimens
- Prior art date
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Description
. Устройство содержит две плиты 1 и 2, взаимодействующие с соответствующими захватами испытательной машины (не показаны), сферический шарнир 3, размещенный в плите 1 опоры 1 ка,чени с пружинами 5, установленные в полост х плиты 2, поддерживающие элементы, каждый из которых выполнен в виде неподвижного клина 6, установленного на плите 2, и подвижного кли на 7, размещенного на одной из опор k и взаимодействующего с неподвижным клином 6 через антифрикционный слой 8, Все неподвижные клинь 6 поддерживающих элементов жестко св заны между собой болтами 9 и с плитой 2 болтами 10. . The device contains two plates 1 and 2, interacting with the corresponding grippers of the testing machine (not shown), a spherical hinge 3 placed in the plate 1 of the support 1 ka, chen with the springs 5 installed in the cavity of the plate 2, supporting elements, each of which is made in the form of a fixed wedge 6 installed on the plate 2 and a movable Kli on 7 placed on one of the supports k and interacting with the fixed wedge 6 through the antifriction layer 8, All the fixed wedges 6 of the supporting elements are rigidly connected to each other by bolts 9 and with a plate 2 bolts 10.
Устройство работает следующим образом .The device works as follows.
Длинномерный образец 11, например стержневой устанавливают таким образом , что его торцы взаимодействуют с плитами 1 и 2, а боковые, поверхности - с подвижными клинь ми 7 поддерживающих элементов. Затем к плитам 1 и 2 прикладывают от исполнительной машины усили сжати образца 11, который сжимаетс с увеличением его поперечного сечени . Подвижные клинь 7 перемещаютс вдоль неподвижных клиньев 6 и сжимают пружину 5 опоры 4. После достижени критических напр жений, образец начинает тер ть устойчивость, изгиба сь в сторону какого-либо подвижного клина 7, который тормозитс , например, полностью выбрав свой свободный ход, и удерживает образец 11 от изгиба. Последовательное торможение клиньев 7 предотвращает потерю устойчивости образца 11 и позвол ет производить деформацию образца 11 до высоких уроней напр жений.A lengthy sample 11, for example, a rod one, is installed in such a way that its ends interact with the plates 1 and 2, and the side surfaces and surfaces with movable wedges 7 of the supporting elements. Then, plates 1 and 2 are applied from the executive to compress the sample 11, which is compressed with an increase in its cross section. The movable wedges 7 move along the fixed wedges 6 and compress the spring 5 of the support 4. After reaching critical stresses, the specimen begins to lose stability, bending in the direction of some movable wedge 7, which slows down, for example, having completely selected its free course, and keeps sample 11 from bending. Sequential braking of the wedges 7 prevents the loss of stability of the sample 11 and allows deformation of the sample 11 to high stress levels.
Затем усилие с плит 2 снимаетс , образец 11 восстанавливает Then the force from the plates 2 is removed, sample 11 restores
свои размеры в упругой области, а подвижные клинь 7 все врем перемещаютс , каса сь боковой поверхности образца 11 и следу за изменением его размеров.their dimensions are in the elastic region, and the moving wedges 7 all the time move, touching the side surface of the sample 11 and following the change in its dimensions.
Предлагаемое устройство позвол ет производить упруго-пластическое деформирование длинномерных образцов при одноосном сжатии с высокой степенью точности до высоких уровней напр жений без потери устойчивости.The proposed device allows for elastic-plastic deformation of long-length specimens under uniaxial compression with a high degree of accuracy to high levels of stress without loss of stability.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU803002843A SU932358A1 (en) | 1980-11-05 | 1980-11-05 | Device for elastoplastic deformation of length specimens in compression |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU803002843A SU932358A1 (en) | 1980-11-05 | 1980-11-05 | Device for elastoplastic deformation of length specimens in compression |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU932358A1 true SU932358A1 (en) | 1982-05-30 |
Family
ID=20925568
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU803002843A SU932358A1 (en) | 1980-11-05 | 1980-11-05 | Device for elastoplastic deformation of length specimens in compression |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU932358A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4840070A (en) * | 1986-10-21 | 1989-06-20 | British Aerospace Public Limited Company | Laminate compression tester |
| CN107391788A (en) * | 2017-06-09 | 2017-11-24 | 东南大学 | Solves the method for continuous media component Problems of Nonlinear Mechanics with 3 d-dem entity |
-
1980
- 1980-11-05 SU SU803002843A patent/SU932358A1/en active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4840070A (en) * | 1986-10-21 | 1989-06-20 | British Aerospace Public Limited Company | Laminate compression tester |
| CN107391788A (en) * | 2017-06-09 | 2017-11-24 | 东南大学 | Solves the method for continuous media component Problems of Nonlinear Mechanics with 3 d-dem entity |
| CN107391788B (en) * | 2017-06-09 | 2020-10-02 | 东南大学 | Method for solving nonlinear mechanics problem of continuous medium member by using three-dimensional discrete entity |
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