Head:

Prof. Jan J. Sławianowski, Ph.D., D.Sc.

phone: (48-22) 827 81 82; 826 12 81 ext. 135

e-mail: jslawian@ippt.gov.pl

Secretary:

Monika Węglowska

phone: (48-22) 827-46-92; (48-22) 826-12-81 ext. 280

room: 613

e-mail: mweglow@ippt.gov.pl

The Department has two Divisons:

Analytical Mechanics and Field Theory (Prof. Jan J. Sławianowski, Ph.D., D.Sc.)

Polymer Physics (Assoc. Prof. Leszek Jarecki, Ph.D., D.Sc.)

and Research Group:

Nanophotonics (Assoc. Prof. Wojciech Nasalski, Ph.D., D.Sc.)

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Staff:

Professors:

Jan J. Sławianowski, Ph.D., D.Sc.

Associate Professors:

Zbigniew Banach, Ph.D., D.Sc.

Leszek Jarecki, Ph.D., D.Sc.

Wojciech Nasalski, Ph.D., D.Sc.

Paweł Sajkiewicz, Ph.D., D.Sc.

Zygmunt Jacek Zawistowski, Ph.D., D.Sc.

Senior Researchers:

Barbara Atamaniuk, Ph.D.

Anna Blim, Ph.D.

Barbara Gołubowska, Ph.D

Vasyl Kovalchuk, Ph.D.

Wiesław Larecki, Ph.D.

Agnieszka Martens, Ph.D.

Beata Misztal-Faraj, Ph.D.

Sławomir Piekarski, Ph.D.

Ewa E. Rożko, Ph.D.

Małgorzata Seredyńska, Ph.D.

Arkadiusz Gradys, M.Sc.

Technicians:

Mieczysław Grzęda

Ph.D. Students:

Ewa Gobcewicz, M.Sc.

Agata Roszkiewicz, M.Sc.

Witold Szabelak, M.Sc.

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Current Research Activities:

• Theoretical foundations of the microcrack nucleation processes in metals, vacancy hypothesis of microfracture of metals, influence of temperature on the crack propagation, mechanics of brittle fracture of solids, partial opening and closure of cracks, application of effective moments to the analysis of stress states in media containing structural defects, convergence of the evaluation procedures in the analysis of consolidation and brittle fracture, staggered numerical algorithms, analysis of structural defects (dislocations) in piezo-electric materials, phase transformations in ferro-electric media, propagation of thermoelastiv waves.
• Variational methods in media and structures subject to finite displacements, modelling of contacts between two bodies, problems of duality, nonconvex contact problems, homogenization and determination of effective properties of porous media, elastic composites and cracked laminar composites, control in dynamical problems for anisotropic plates and shells.
• Nonlinear dynamics of continuous and discrete systems.
• Relativistic theory of continua with astrophysical aspects.
• Relativistic thermodynamics and statistical mechanics, mechanics of media with internal degrees of freedom and defects, generalized nonlinearities of the Borne-Infeld type, generally covariant and gauge-invariant models of the classical field theory, foundations of Hamiltonian mechanics and Hamiltonian systems with symmetries and collective degrees of freedom, constitutive modelling of dissipative bodies, transport theory, over-determined sets of conversation laws.
• Theory of tensors and tensorial functions.
• Fractals as models of material bodies.
• Mathematical description and design of material properties for complex media.
• Mechanics of nonhomogeneous materials.
• Strongly anisotropic composites.
• Mechanics of complex media.
• Electrodynamics of deformable bodies and field interactions, in particular fracture of dielectrics under influence of electromagnetic fields, electromagnetic stability of liquid crystals.
• Micropolar models of electromagneto-gravitational interactions.
• Generalized Dirac equation and invariance problems.
• Theoretical and experimental investigations and modeling of structure formation in polymers in nano-, mikro-, and macroscopic scale, important for technical and biotechnological applications. In particular non-linear theory of molecular orientation in orienting flow with effects of non-stationarity in the flow and relaxation, kinetic theory of oriented nucleation and crystallization under steady-state and non-stationary conditions are developed, as well as theory and experimental investigations of non-isothermal nucleation and crystallization kinetics, kinetics of polymorphic transformations in the crystalline structure. Calorymetric methods (DSC, DTA), polarization microscopy, optical depolarization, X-ray, and densitometric technics are used in the experimental investigations.
• Mathematical and computer modeling of mechanical and aerodynamic melt spinning of fibres with on-line thermal modifications and effects of stress-induced crystallization in the process dynamics, aimed to optimize spinning technology in terms of structure and properties of fibres of technical and biotechnological meaning.
• Computer simulations of the molecular dynamics using cooperative molecular motion methods to evaluate development of rheological parameters of polymer liquids undergoing crystallization.
• Optical beams at multilayers and nanostructures, spin and orbital angular momentum of photons in nanophotonic applications, photonic visualisation and manipulation of nanostructures, applications of optical surface plasmons in nanotechnology.

Key Words:

• brittle fracture mechanics, microcrack nucleation, dielectric structures, phase transformations, thermoelastic waves;
• variational methods, contact problems, composite mechanics, coupled fields;
• defects, dislocations, disclinations, pseudo-Riemannian geometry, micromorphic medium;
• tensorial functions, fractals, anisotropy, composites, gradient media;
• deformable body, electromagnetic field, electromagneto-elastic interaction, liquid crystals, electromagnetic fracture, stability, gravitation, Dirac equation, quantum mechanics, invariance;
• nondestructive testing, ultrasonic extensometry, residual stresses.
• polymers, molecular orientation, elongational flows, nucleation, crystallization kinetics, stress-induced crystallization, polymorphic transformations, light depolarization method, modeling of fibre melt spinning, computer simulations of molecular dynamics.
• First-order optics and nanophotonics, interfaces and multilayers, nanostructures and metamaterials, optical Hermite-Gaussian and Laguerre Gaussian beams, beam nonspecular transmission and reflection, effects of beam cross-polarization, photon spin and orbital angular momentum, optical traps and vortices, surface plasmons.