Element Birth and Death Method Application to Lamellar Crack Analysis
Ładowanie...
Data
Tytuł czasopisma
ISSN czasopisma
Tytuł tomu
Wydawca
Wydawnictwo Politechniki Łódzkiej ; Katedra Dynamiki Maszyn - Wydział Mechaniczny Politechniki Łódzkiej
Lodz University of Technology. Press ; Division of Dynamics - Faculty of Mechanical Engineering, Lodz University of Technology
Lodz University of Technology. Press ; Division of Dynamics - Faculty of Mechanical Engineering, Lodz University of Technology
Abstrakt
Load structure, the maximum permissible load is usually determined by the strength
calculation (bearing data. Yield stress or strength of the material), or the parameters of
fracture mechanics. The paper analyzes the calculations lamellar cracks formed in the
lower crane girders steel belts.
These cracks are formed in rolled sheets of non-metallic inclusions. The determination
of the cracks in the existing designs are extremely difficult. It requires testing
metallographic, ultrasonic or acoustic methods. Based on typical images of metallographic
steel plates specified place of occurrence of cracks lamellar and sampling, and
has subsequently been adopted for the calculation of numerical models of material structure
and distribution of artificial joints. In order to analyze the propagation of cracks
and formation of lamellar phase slots and destruction was carried out modeling studies
and numerical methods cracking process.
Opis
Słowa kluczowe
FEM, model of fracture, stress intensity-factor, lamellar cracks, model pęknięcia, współczynnik intensywności naprężeń, pęknięcia blaszkowe, finite element mehod, metoda elementów skończonych
Cytowanie
Mechanics and Mechanical Engineering, Vol. 19, No. 1, 2015, s. 63-75