Víceúrovňové modely - deformace válcových vzorků s obvodovou trhlinou jsou složité procedury s náročnými matematickými operacemi. Budou-li definovány potřebné mezní hodnoty, lze použít výrazně jednodušší metody. - martenzitické transformace a plastické deformace při zatížení tenkého drátu s vruby z NiTi umožní nový popis pomocí K-faktoru. - materiálů vyrobených 3D tiskem s úrovní popisují rychlost a hustotu řádků pohybu tiskové hlavy a povedou k souvislostem s mechanickými a únavovými vlastnostmi. Experimentální ověřování výsledků.

FSI-S-20-6266

Czech

Šandera Pavel, prof. RNDr., CSc. - principal person responsible
Shayanfard Pejman, Ph.D. - fellow researcher

Institute of Physical Engineering
- responsible department (3.3.2020 - not assigned)
Dept. of Micromechanics of Materials and Engineering Acoustics
- internal (1.1.2020 - 31.12.2022)
Faculty of Mechanical Engineering
- internal (1.1.2020 - 31.12.2022)
Institute of Physical Engineering
- beneficiary (1.1.2020 - 31.12.2022)

HELLER, Luděk; KARAFIÁTOVÁ, Iva; PETRICH, Lukas; PAWLAS, Zbyněk; SHAYANFARD, Pejman; BENEŠ, Viktor; SCHMIDT, Volker; ŠITTNER, Petr;. Numerical microstructure model of NiTi wire reconstructed from 3D-XRD data. MODELLING AND SIMULATION IN MATERIALS SCIENCE AND ENGINEERING, 2020, vol. 28, no. 5, p. 055007-055007. ISSN: 0965-0393.
Detail

SHAYANFARD, P.; ŠITTNER, P.; HELLER, L.; ŠANDERA, P. Finite element analysis on the effect of martensitic transformation and plastic deformation on the stress concentration factor in a thin notched superelastic NiTi ribbon. Functional Materials Letters, 2020, vol. 13, no. 5, p. 2051028-2051028. ISSN: 1793-6047.
Detail

ŠANDERA, P.; HORNÍKOVÁ, J.; KIANICOVÁ, M.; DLOUHÝ, I.; POKLUDA, J. Determination of Ramberg-Osgood approximation for estimation of low- temperature fracture toughness. In Fracture and Damage Mechanics. AIP conference proceedings. AIP Publishing LLC., 2020. no. 1, p. 020024-1 (020024-6 p.)ISBN: 978-0-7354-4045-6. ISSN: 1551-7616.
Detail

SHAYANFARD, P.; ALARCON, E.; BARATI, M.; MAHTABI, M.; KADKHODAEI, M.; CHIRANI, S.A; ŠANDERA, P. Stress raisers and fracture in shape memory alloys: review and ongoing challenges. CRITICAL REVIEWS IN SOLID STATE AND MATERIALS SCIENCES, 2021, no. 1, p. 1896475-1896475. ISSN: 1040-8436.
Detail

SHAYANFARD, P.; HELLER, L.; ŠANDERA, P.; ŠITTNER, P. Numerical analysis of NiTi actuators with stress risers: The role of bias load and actuation temperature. ENGINEERING FRACTURE MECHANICS, 2021, vol. 244, no. 1, p. 107551-1 (107551-11 p.)ISSN: 1873-7315.
Detail

KIANICOVÁ, M.; DLOUHÝ, I.; ŠANDERA, P.; HORNÍKOVÁ, J.; POKLUDA, J. Dynamic Fracture Characteristics of High-Strength Steel. Defect and Diffusion Forum, 2023, vol. 422, no. 1, p. 45-49. ISSN: 1012-0386.
Detail

SHAYANFARD, P.; HELLER, L.; ŠANDERA, P.; ŠITTNER, P. Experimental and Numerical Investigation of Thermomechanical Cycling of Notched NiTi Shape Memory Ribbon Using SMA Model Accounting for Plastic Deformation. Journal of Materials Research and Technology-JMR&T, 2021, vol. 15, no. 1, p. 1759-1776. ISSN: 2238-7854.
Detail

POKLUDA, J.; DLOUHÝ, I.; KIANICOVÁ, M.; ČUPERA, J.; HORNÍKOVÁ, J.; ŠANDERA, P. Temperature Dependence of Fracture Characteristics ofVariously Heat-Treated Grades of Ultra-High-Strength Steel:Experimental and Modelling. Materials, 2021, vol. 14, no. 19, p. 1-28. ISSN: 1996-1944.
Detail

Responsibility: Šandera Pavel, prof. RNDr., CSc.