Numerical recognition of plastic localized zones under dynamic loading

• Autorzy: Glema A. , Łodygowski T.
• Konferencja: Problemy Dynamiki Konstrukcji / XI Międzynarodowe Sympozjum Dynamiki Konstrukcji (XI ; 25-27. 09. 2002 ; Rzeszów-Arłamów, Polska)
• Języki publikacji: PL

Abstrakty

EN

The plastic strain localization phenomena are studied with the use of the theory of viscoplasticity and finite element method. The aim of the preliminary study is to check if the strain localization is sensitive to variation of parameters specifying the physical model and boundary conditions. The plastic deformation energy can be maximized in the process of the optimal design of boundaries and inclusions. The study proofs that it is possible to control the process of localized deformations.

Słowa kluczowe

PL

odkształcenia plastyczne; lokalizacja odkształceń plastycznych; dynamika konstrukcji

EN

plastic strain; plastic strain lokalization; design dynamics

• Wydawca: Oficyna Wydawnicza Politechniki Rzeszowskiej
• Czasopismo: Zeszyty Naukowe Politechniki Rzeszowskiej. Mechanika
• Rocznik: 2002
• Tom: z. 60 [197]
• Strony: 205--212
• Opis fizyczny: Bibliogr. 9 poz., rys., wykr.

Twórcy

autor

Glema A.

• Poznan University of Technology, Institute of Structural Engineering, ul. Piotrowo 5, PL 60-965 Poznan, Poland

autor

Łodygowski T.

• Poznan University of Technology, Institute of Structural Engineering, ul. Piotrowo 5, PL 60-965 Poznan, Poland

Bibliografia

• 1. P. Perzyna, Instability phenomena and adiabatic shear band localization in thermoplastic flow processes, Acta Mechanica, 106, (1994), pp. 173-205.
• 2. L.J. Sluys, Wave progagation, localisation and dispersion in softening solids, Tu Delft, (1992).
• 3. Łodygowski T., Lengnick M., Perzyna P., Stein E., Viscoplastic numerical analysis of dynamic plastic localization for a ductile material. Archives of Mechanics 1994; 46(4): 541-557.
• 4. P. Perzyna, Interactions of elastic-viscoplastic waves and localization phenomena in solids, IUTAM Symposium on Nonlinear Waves in Solids, Victoria, Canada, August 15-20, 1993; (eds. J.L. Wegner and F.R. Norwood), ASME, (1995), pp. 114-121.
• 5. Łodygowski T. On avoiding of spurious mesh sensitivity in numerical analysis of plastic strain localization. Computer Assisted Mechanics & Engineering Sciences 1995; 2: 231-248.
• 6. Łodygowski T., Perzyna P., Numerical modeling of localized fracture of inelastic solids in dynamic loading processes. International Journal of Numerical Methods in Engineering 1997; 40: 4137-4158.
• 7. A. Glema, T. Lodygowski, P. Perzyna, Interaction of deformation waves and localization phenomena in inelastic solids, Computer Methods in Applied Mechanics and Engineering, 183, (2000), 123-140.
• 8. A. Glema, T. Lodygowski, P. Perzyna The role of dispersion for the description of strain localization in materials under impact loading, ECCMM 2001 – European Conf. on Comp. Mech., June 26-29, 2001, Cracow, Poland, CDROM.
• 9. A. Glema, T. Lodygowski, P. Perzyna The role of dispersion and waves interaction in recognition of plastic localization in materials under impact loading, Computer Methods in Applied Mechanics and Engineering, (2001), [submitted]