Wyniki wyszukiwania - BazTech

Ograniczanie wyników

2 Mechanics and Mechanical Engineering

2 Jaroniek M.

Znaleziono wyników: 2

Liczba wyników na stronie

Wyniki wyszukiwania

Wyszukiwano:
w słowach kluczowych: bi-polar coordinates

Sortuj według:

Ogranicz wyniki do:

Mathematical and Experimental Analysis Tension of Steel in Bi-Polar Coordinates

Jaroniek M.

Mechanics and Mechanical Engineering

2016

Vol. 20, nr 4

467--488

A series of experiments was carried out to examine the effects of elastic–plastic deformation on the state of stress and the flow stress mechanism under static tension. The strain distribution determined from the fringe pattern using the Moire method allows one to determine the strain and the crack propagation of not–notched specimens an isotropic and elastic–plastic materials. In the analysis of stress the method of calculating using the bipolar coordinate is proposed. The theoretical model is divided into two elements and the condition of incompressibility is satisfied in each element. The proposed method is compared with the elastic-plastic FEM (ANSYS 12, 14) and it is satisfied approximately. The tensile test is aimed to verify the mathematical model that can be applied in the logarithmic stain in further computations.

Plastic stresses, strains and the phase of failure in tension

Jaroniek M.

Mechanics and Mechanical Engineering

2006

Vol. 10, nr 1

82-109

In this paper the analysis of the state of strain and stress in necking has been analysed. A description of the stress-strain relationship, which takes into account strain hardening, and next necking until the moment of rupture, along with a description of breaking stresses, allows one to build such a mathematical model (described in bi-polar coordinates) in the whole range of load, which accounts for the fracture formation and the element failure.