<abstract xmlns="http://www.w3.org/1999/xhtml"><p>The paper presents a comparison of the fatigue life curves based on test of 15Mo3 steel under cyclic, pendulum bending and tension-compression. These studies were analyzed in terms of a large and small number of cycles where strain amplitude is dependent on the fatigue life. It has been shown that commonly used Manson-Coffin-Basquin model cannot be used for tests under cyclic bending due to the impossibility of separating elastic and plastic strains. For this purpose, some well-known models of Langer and Kandil and one new model of authors, where strain amplitude is dependent on the number of cycles, were proposed. Comparing the results of bending with tension-compression it was shown that for smaller strain amplitudes the fatigue life for both test methods were similar, for higher strain amplitudes fatigue life for bending tests was greater than for tension-compression.</p></abstract>

The paper presents a comparison of the fatigue life curves based on test of 15Mo3 steel under cyclic, pendulum bending and tension-compression. These studies were analyzed in terms of a large and small number of cycles where strain amplitude is dependent on the fatigue life. It has been shown that commonly used Manson-Coffin-Basquin model cannot be used for tests under cyclic bending due to the impossibility of separating elastic and plastic strains. For this purpose, some well-known models of Langer and Kandil and one new model of authors, where strain amplitude is dependent on the number of cycles, were proposed. Comparing the results of bending with tension-compression it was shown that for smaller strain amplitudes the fatigue life for both test methods were similar, for higher strain amplitudes fatigue life for bending tests was greater than for tension-compression.

Low Cycle Fatigue of Steel in Strain Controled Cyclic Bending

Faculty of Mechanical Engineering, Department of Mechanics and Machine Design, Opole University of Technology, ul. Mikołajczyka 5, 45-271 Opole, Poland

Acta Mechanica et Automatica

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

{"article-title":"Low Cycle Fatigue of Steel in Strain Controled Cyclic Bending"}

The paper presents a comparison of the fatigue life curves based on test of 15Mo3 steel under cyclic, pendulum bending and tension-compression. These studies...

Low Cycle Fatigue of Steel in Strain Controled Cyclic Bending

Publicado en línea: 07 mar 2016

Páginas: 62 - 65

Recibido: 05 abr 2015

Aceptado: 25 feb 2016

DOI: https://doi.org/10.1515/ama-2016-0011

Palabras clave
Lifetime, Strain Control, Bending, Push-Pull, Tension-Compression

© 2016 Bialystok University of Technology

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Low Cycle Fatigue of Steel in Strain Controled Cyclic Bending

Publicado en línea: 07 mar 2016

Páginas: 62 - 65

Recibido: 05 abr 2015

Aceptado: 25 feb 2016

DOI: https://doi.org/10.1515/ama-2016-0011

Palabras claveLifetime, Strain Control, Bending, Push-Pull, Tension-Compression

© 2016 Bialystok University of Technology

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Palabras clave
Lifetime, Strain Control, Bending, Push-Pull, Tension-Compression