SU879369A1 - Specimen for testing fragile material for break-down viscosity - Google Patents
Specimen for testing fragile material for break-down viscosity Download PDFInfo
- Publication number
- SU879369A1 SU879369A1 SU792846139A SU2846139A SU879369A1 SU 879369 A1 SU879369 A1 SU 879369A1 SU 792846139 A SU792846139 A SU 792846139A SU 2846139 A SU2846139 A SU 2846139A SU 879369 A1 SU879369 A1 SU 879369A1
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- SU
- USSR - Soviet Union
- Prior art keywords
- testing
- specimen
- break
- fragile material
- down viscosity
- Prior art date
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Description
1one
Изобретение относитс к испытани м материалов и элементов конструкций , в частности к образцам дл испытани на в зкость разрушени хрупкого материала.The invention relates to the testing of materials and structural elements, in particular to samples for testing the fracture toughness of the brittle material.
Известен образец дл испытани на в зкость разрушени хрупкого материала , выполненный в виде диска со сквозной центральной трещиной 1. QA known sample for viscosity test of fracture of a brittle material, made in the form of a disk with a through central crack 1. Q
Известный образец нагружают сжатием путем приложени к боковой поверхности диска двух диаметрально противоположных сил в плоскости, содержащей трещину.The known sample is loaded by compression by applying two diametrically opposed forces to the side surface of the disk in the plane containing the crack.
Недостатком известного образТца в- 5 л етс низка точность при его испытании , св занна со скалыванием хрупкого материала в местах приложени нагрузки.The disadvantage of the known sample is the low accuracy of its testing, which is associated with the cleaving of brittle material in places where the load is applied.
Цель изобретени - повышение точ- xu ности испытани путем исключени сколов при испытании сверхтвердых хрупких материалов, например, дл лезвийного режущего инструмента.The purpose of the invention is to improve the accuracy of testing by eliminating spalling when testing superhard brittle materials, for example, for a blade cutting tool.
Указанна цель достигаетс тем, что на боковой поверхности диска перпендикул рно плоскости трещины выполнены диаметрально противоположные площадки длиной 0,01-0,1 диаметра диска,This goal is achieved by the fact that on the side surface of the disk perpendicular to the plane of the crack there are diametrically opposite areas with a length of 0.01-0.1 of the disk diameter,
На чертеже изображен предлагаемый образец.The drawing shows the proposed sample.
Образец выполнен в виде диска 1 диаметра D. В образце выполнена сквозна центральна трещина 2 длиной 2F. На боковой (цилиндрической) поверхности диска выполнены две диаметрально противоположные площадки.3 и 4. Площадки расположены перпендикул рно плоскости трещины, и к ним в процессе нагружени прикладывают сжимающие пуансоны 5 и 6. При испытании образца с площадками повышаетс точность испытани , поскольку исключаютс Сколы в местах приложени нагрузки , особенно при исследовании прочности хрупких материалов.The sample is made in the form of a disk 1 of diameter D. The sample has a through central crack 2 with a length of 2F. Two diametrically opposite areas 3 and 4 are made on the side (cylindrical) surface of the disk. The areas are located perpendicular to the crack plane, and compressive punches 5 and 6 are applied to them during loading. As the sample is tested with areas, the accuracy of testing is eliminated. places of application of the load, especially when examining the strength of brittle materials.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU792846139A SU879369A1 (en) | 1979-12-06 | 1979-12-06 | Specimen for testing fragile material for break-down viscosity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU792846139A SU879369A1 (en) | 1979-12-06 | 1979-12-06 | Specimen for testing fragile material for break-down viscosity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU879369A1 true SU879369A1 (en) | 1981-11-07 |
Family
ID=20862053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU792846139A SU879369A1 (en) | 1979-12-06 | 1979-12-06 | Specimen for testing fragile material for break-down viscosity |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU879369A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4821577A (en) * | 1987-06-22 | 1989-04-18 | Dowell Schlumberger Incorported | Modified ring test |
| RU2627957C1 (en) * | 2016-09-26 | 2017-08-14 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Московский авиационный институт (национальный исследовательский университет)" | Cylindrical sample for compression testing |
-
1979
- 1979-12-06 SU SU792846139A patent/SU879369A1/en active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4821577A (en) * | 1987-06-22 | 1989-04-18 | Dowell Schlumberger Incorported | Modified ring test |
| RU2627957C1 (en) * | 2016-09-26 | 2017-08-14 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Московский авиационный институт (национальный исследовательский университет)" | Cylindrical sample for compression testing |
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