PSI - Issue 2_B

Tretyakova T.V. et al. / Procedia Structural Integrity 2 (2016) 3393–3398 Author name / Structural Integrity Procedia 00 (2016) 000 – 000

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Fig. 6. Inhomogeneous local strain rate fields (left) and the temperature fields (right) on the surface of the flat specimen with two L-shaped holes

4. Conclusion Complex experimental investigation of the temporal instabilities and the spatial localization due to the Lüders behavior, the Portevin – Le Chatelier effect and the shoulder or necking effect of aluminum-magnesium alloy and carbon steel was carried out on the base of combined use of the advanced test equipment, high-effect measuring systems and high-accuracy facilities. The results provide an important data base for the development of the theoretical and numerical description of the material behavior in conditions of the serrated flow appearance, especially of the mechanisms and regularities of the Lüders and PLC bands nucleation and propagation.

Acknowledgements

The work was carried out with support of the Russian Science Foundation (Project 16-19-00069) in the Perm National Research Polytechnic University.

References

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