Deformation and Heat Generation in Cylindrical Samples from Low-Carbon Steel with Group Recess when Stretched
The paper shows that in the root of rectangular grooves of stretched steel cylindrical rods of circular cross section containing groups of equally distant grooves with the same geometry, with an increase in the distance between the grooves, the relative narrowing at the point of fracture decreases b...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
National Academy of Sciences of Belarus, State Scientific Institution “The Joint Institute of Mechanical Engineering"
2018-06-01
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| Series: | Механика машин, механизмов и материалов |
| Subjects: | |
| Online Access: | http://mmmm.by/en/readers-en/archive-room-en?layout=edit&id=1375 |
| Summary: | The paper shows that in the root of rectangular grooves of stretched steel cylindrical rods of circular cross section containing groups of equally distant grooves with the same geometry, with an increase in the distance between the grooves, the relative narrowing at the point of fracture decreases by 1.5 or more times when the ratio of the width of the protrusions to the width of grooves changes from 1 to 4. It is obtained that at a constant deformation rate of a specific element the change in the temperature of its points will be proportional to the stresses acting in the elements NTE. It is established that in the cylindrical rods made of low-carbon steel with groups of grooves and protrusions along the length under the influence of an increasing load, the emergence of zones of limiting states, fracture nucleation sites and their development in elements can be determined by the thermal method with a probability of not less than 95 %. |
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| ISSN: | 1995-0470 2518-1475 |