Temat: strain distributions

Skocz do pozycji: 1.

Tytuł:: Determination of Strain and Stress Fields in Welded Joints of S960-QC Steel
Autorzy:: Pała, T.
Dzioba, I.
Tematy:: welded joints
strain distributions
strength characteristics
FEM; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Powiązania:: https://bibliotekanauki.pl/articles/352759.pdf Link otwiera się w nowym oknie
Opis:: The paper presents the results of two butt welded joints by conventional method. The welding process was performed using a variety of linear welding energy. The studies included experimental and computational part. In experimental studies determined the distribution of hardness and mechanical properties of the individual analyzed sections of welded joints. The data obtained were intended to determine the extent of zones in the welded joints that have certain strength characteristics. Also conducted uniaxial tensile tests of welded joints with the registration of displacement fields on the surface of specimens by means of Aramis video-system what the final result are images of strain fields map on the surface of welded joints. The resulting strain values were compared with the results of numerical computations FEM.
Dostawca treści:: Biblioteka Nauki

Artykuł

na półce

Skocz do pozycji: 2.

Tytuł:: Tests of local strains in steel laser - welded sandwich structure
Autorzy:: Boroński, D.
Szala, J.
Tematy:: fatigue
laser welding
local strain distributions
laser grating interferometry
steel panel structures; Pokaż więcej
Wydawca:: Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Powiązania:: https://bibliotekanauki.pl/articles/260500.pdf Link otwiera się w nowym oknie
Opis:: This paper presents results of the tests of local strains in laser weld zone of steel sandwich structure, performed at the Department of Machine Design, University of Technology and Agriculture, Bydgoszcz, in cooperation with the Department of Ship and Offshore Structures Technology, Gdańsk University of Technology, within the frame of ASPIS EUREKA E!3074 project titled : „Application of steel sandwich panels into ship structural design”. Specific features of the tested structure make that in the weld zone both geometrical and structural notch appears simultaneously. The presented results may be helpful in further developing sandwich structures themselves and laser welding technique as well as their design methods as far as avoiding fatigue cracks is concerned.
Dostawca treści:: Biblioteka Nauki

Artykuł

na półce

Skocz do pozycji: 3.

Tytuł:: Effect of Local Strain Distribution of Cold-Rolled Alloy 690 on Primary Water Stress Corrosion Crack Growth Behavior
Autorzy:: Kim, S.-W.
Ahn, T.-Y.
Lim, Y.-S.
Hwang, S.-S.
Tematy:: alloy 690
crack growth
electron backscatter diffraction
local strain distributions
stress corrosion cracking; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Powiązania:: https://bibliotekanauki.pl/articles/354997.pdf Link otwiera się w nowym oknie
Opis:: This work aims to study the stress corrosion crack growth behavior of cold-rolled Alloy 690 in the primary water of a pressurized water reactor. Compared with Alloy 600, which shows typical intergranular cracking along high angle grain boundaries, the cold-rolled Alloy 690, with its heterogeneous microstructure, revealed an abnormal crack growth behavior in mixed mode, that is, in transgranular cracking near a banded region, and in intergranular cracking in a matrix region. From local strain distribution analysis based on local mis-orientation, measured along the crack path using the electron back scattered diffraction method, it was suggested that the abnormal behavior was attributable to a heterogeneity of local strain distribution. In the cold-rolled Alloy 690, the stress corrosion crack grew through a highly strained area formed by a prior cold-rolling process in a direction perpendicular to the maximum principal stress applied during a subsequent stress corrosion cracking test.
Dostawca treści:: Biblioteka Nauki

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