SU890133A1 - Method of investigating material mechanical properties at its destruction - Google Patents
Method of investigating material mechanical properties at its destruction Download PDFInfo
- Publication number
- SU890133A1 SU890133A1 SU792832768A SU2832768A SU890133A1 SU 890133 A1 SU890133 A1 SU 890133A1 SU 792832768 A SU792832768 A SU 792832768A SU 2832768 A SU2832768 A SU 2832768A SU 890133 A1 SU890133 A1 SU 890133A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- destruction
- mechanical properties
- sample
- rods
- material mechanical
- Prior art date
Links
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Description
Изобретение относится к испытаниям материалов и элементов конструкций, в частности, к способам исследования механических свойств материа- j ла при его разрушении.The invention relates to tests of materials and structural elements, in particular, to methods for studying the mechanical properties of a material during its destruction.
Известен способ исследования механических свойств материала при его разрушении, заключающийся в том, что образец материала размещают между ц соосными стержнями, разрушают образец прикладывая к одному из стержней осевую динамическую нагрузку, и измеряют деформации стержней, вызванные падающей, отраженной и прошедшей через образец волнами. В известном способе исследованию подвергают цилиндрический образец, расположенный соосно со стержнями [1J .A known method for studying the mechanical properties of a material during its destruction is that a sample of material is placed between coaxial rods, the sample is destroyed by applying an axial dynamic load to one of the rods, and the deformations of the rods caused by incident, reflected and transmitted waves through the sample are measured. In the known method, a cylindrical specimen located coaxially with the rods [1J.
Недостатком известного способа являртся невозможность разрушения и определения работы разрушения сверхтвердых материалов.The disadvantage of this method is the impossibility of destruction and determination of the work of destruction of superhard materials.
Целью изобретения является определение работы разрушения сверхтвердых __ материалов, например для лезвийного режущего инструмента.The aim of the invention is to determine the work of destruction of superhard __ materials, for example for a blade cutting tool.
Указанная цель достигается тем, что исследованию подвергают образец в виде диска со сквозной центральной трещиной и размещают его таким обра- 40 зом, чтобы ось стержней была перпендикулярна оси диска, и лежала в плоскости трещины.This goal is achieved by subjecting the sample to a disk with a through central crack and placing it so that the axis of the rods is perpendicular to the axis of the disk and lies in the plane of the crack.
Способ осуществляют следующим образом.The method is as follows.
В образце сверхтвердого материала в форме диска создают сквозную центральную трещину. Трещину создают,например лазеры. Образец размещают между двумя соосными стержнями таким образом, чтобы ось стержней была перпендикулярна оси диска и лежала в плоскости трещины. Затем по одному . из стержней наносят осевой удар, например, свободно падающим бойком. При этом по стержням и образцу распространяются динамические волны,разрушающие образец. Сигналы от датчиков деформаций, наклоненных на стержнях, регистрируют при прохождении падающей, отраженной и прошедшей через образец волнами. По зарегистрированным величинам деформаций вычисляют работу разрушения образца.In the sample of superhard material in the form of a disk, a through central crack is created. A crack is created, for example, by lasers. The sample is placed between two coaxial rods so that the axis of the rods is perpendicular to the axis of the disk and lies in the plane of the crack. Then one at a time. axial impact is applied from the rods, for example, by a freely falling striker. In this case, dynamic waves propagating along the rods and the sample propagate, destroying the sample. The signals from the strain sensors, inclined on the rods, are recorded when the incident, reflected and transmitted waves pass through the sample. The registered values of deformations calculate the work of fracture of the sample.
Это позволяет исследовать механические свойства сверхтвердых материалов .This allows you to study the mechanical properties of superhard materials.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU792832768A SU890133A1 (en) | 1979-08-13 | 1979-08-13 | Method of investigating material mechanical properties at its destruction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU792832768A SU890133A1 (en) | 1979-08-13 | 1979-08-13 | Method of investigating material mechanical properties at its destruction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU890133A1 true SU890133A1 (en) | 1981-12-15 |
Family
ID=20856235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU792832768A SU890133A1 (en) | 1979-08-13 | 1979-08-13 | Method of investigating material mechanical properties at its destruction |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU890133A1 (en) |
-
1979
- 1979-08-13 SU SU792832768A patent/SU890133A1/en active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Masuda et al. | Experimental study of strain-rate dependence and pressure dependence of failure properties of granite | |
| Vary | Acousto-ultrasonic characterization of fiber reinforced composites | |
| US7043990B2 (en) | System for and method of performing evaluation techniques on a log or round timber | |
| Ellis et al. | Mechanical properties and damage evaluation of a UK PBX | |
| Wang et al. | Nondestructive evaluation of veneer quality using acoustic wave measurements | |
| SU890133A1 (en) | Method of investigating material mechanical properties at its destruction | |
| Bodner | Stress waves due to fracture of glass in bending | |
| Diamaruya et al. | Impact tensile strength and fracture of concrete | |
| Pollock et al. | Stress-wave-emission monitoring of a military bridge | |
| Hakalehto | Brittle fracture of rocks under impulse loads | |
| Bragov et al. | Deformation and Destruction at Deformation Rate of Order 10 3 s− 1 in Wood of Hardwood Trees | |
| Michihiro et al. | Study on estimating initial stress and predicting failure on rock masses by acoustic emission | |
| Wilkening | J-integral measurement in geological materials | |
| Sales et al. | Nondestructive evaluation of timber: the new Brazilian code for the design of timber structures | |
| Martin III et al. | The influence of strain rate and sample inhomogeneity on the moduli and strength of welded tuff | |
| Kinra et al. | Brittle fracture of plates in tension. Stress field near the crack | |
| Nikiforchin et al. | Evaluation of the effect of fatigue crack closure | |
| Uysal | The effect of strain rate on the dynamic mechanical behaviour of concrete | |
| Bertschat et al. | Damage detection at a test bridge with nonlinear ultrasound | |
| SU862042A1 (en) | Method of material specimen testing for compression | |
| KINO | Research on nondestructive testing[Annual Report, 1 Sep. 1980- 31 Aug. 1981] | |
| Sun | An experimental investigation of dynamic crack propagation | |
| JPS561340A (en) | X-ray fracture analysis method | |
| SU1762178A1 (en) | Method of strength intensity determining by transverse shearing crack stoping | |
| NISHIOKA et al. | Finite element simulation of fast fracture in steel DCB specimen(high strength steel double cantilever beams) |