| Autor: |
Zbigniew L. Kowalewski, Tadeusz Szymczak |
| Rok vydání: |
2013 |
| Předmět: |
|
| Zdroj: |
Key Engineering Materials. :181-184 |
| ISSN: |
1662-9795 |
| DOI: |
10.4028/www.scientific.net/kem.535-536.181 |
| Popis: |
The paper presents experimental results of tests carried out at room temperature on power engineering steel: 10H2M (11CrMo9-10) using thin-walled tubular specimens under biaxial stress state. The loading programme comprised different types of deformation, i.e. monotonic tension and cyclic torsion in the form of symmetric or asymmetric step-increasing strain amplitude. The main task of the paper was focused on investigation of an influence of the cyclic loading parameters on tensile curve variations. The magnitudes of axial strain and cyclic shear strain amplitude were small and did not exceed 1%. An analysis of the results showed a significant reduction of the axial stress (even equal 90% for the torsional amplitude ±0.8%, in both cases of cyclic loading). An influence of torsion frequency on the tensile stress curve was discovered within the range from 0.005Hz to 0.5Hz. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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