FIELD: physics.
SUBSTANCE: aligning wedge-shaped grooves are made in a specimen. Wedges are inserted into the grooves with a gap between the apex of the wedge and the bottom of the groove. The specimen is placed between press plates and compression force is applied to the wedges, the value of which determines strength of material of the specimen upon destruction of the specimen. Bottoms of the grooves have a cylindrical radius a, and the smaller base of the trapezoidal wedge is equal to 3a, where a is the maximum crack width set experimentally for any possible percentage of fibre reinforcement. The angle between planes of the wedge is equal to 2φ, where φ=arctg(f) is the angle of inclination of the transverse walls of the groove, and f is the coefficient of friction between surfaces of the specimen and the wedges.
EFFECT: more accurate testing.
3 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF TESTING MATERIAL SPECIMENS FOR TENSION | 0 |
|
SU1357765A1 |
| METHOD FOR EXPERIMENTAL DETERMINATION OF STATIC-DYNAMIC CHARACTERISTICS OF CONCRETE | 2013 |
|
RU2545781C1 |
| METHOD OF EXPERIMENTAL DETERMINATION OF STATIC-DYNAMIC CHARACTERISTICS OF CONCRETE UNDER CONDITIONS OF CYCLIC LOADING | 2013 |
|
RU2547348C1 |
| METHOD OF CONSTRUCTING RAILROAD TRACK AND TRACK DESIGN | 2008 |
|
RU2365697C1 |
| EN KHRUSTALEV METHOD OF PREVENTING ACCIDENT RISK OF HYDRAULIC POWER PLANT AND DEVICE FOR ITS IMPLEMENTATION | 2014 |
|
RU2576444C1 |
| E.N.KHRUSTALEV'S METHOD FOR DETERMINATION OF MEAN INITIAL (FIRST) CRITICAL PRESSURE FOR MATERIAL MEDIUM COMPRESSED BY FLAT STIFF DIE | 2013 |
|
RU2563547C2 |
| METHOD OF TENSION TEST FOR CONSTRUCTION MATERIAL SAMPLES | 2013 |
|
RU2544299C2 |
| DEVICE FOR MATERIAL SAMPLE TEST FOR COMBINED EFFECT OF TENSION, SHEARING AND BENDING FORCES | 2013 |
|
RU2548391C1 |
| GRIPPING DEVICE FOR TESTING FLEXIBLE MATERIALS FOR TENSION | 2008 |
|
RU2373509C1 |
| METHOD FOR ERECTION OF RAILWAY SUPERSTRUCTURE AND ARRANGEMENT OF RAILWAY SUPERSTRUCTURE | 2008 |
|
RU2378435C2 |
