Autor: Śloderbach, Z. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Conditions of stability loss during the test of hydraulic forming of drawpieces. Part II. Discussion and analysis of the results
Autorzy:: Śloderbach, Z.
Powiązania:: https://bibliotekanauki.pl/articles/265430.pdf
Data publikacji:: 2015
Wydawca:: Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:: hydraulic forming
stability loss
boundary strains
height of the drawpiece
normal and plane anisotropy
odkształcenia plastyczne
utrata stabilności
wytłoczki
Opis:: This part of the paper contains the calculation results presented in the form of suitable diagrams and tables. The calculations were made according to the relationships obtained in Part I devoted to a laboratory test of hydraulic forming for some chosen engineering conditions of stability loss. The influence of the coefficient of material hardening, the coefficient of normal anisotropy and the coefficients of plane anisotropy on acceptable plastic strains and heights of the formed drawpieces corresponding to a given condition of stability loss was tested, too.
Źródło:: International Journal of Applied Mechanics and Engineering; 2015, 20, 4; 928-938
1734-4492
2353-9003
Pojawia się w:: International Journal of Applied Mechanics and Engineering
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Conditions of stability loss during the test of hydraulic forming of drawpieces. Part I. Derivation of basic equations and relationships
Autorzy:: Śloderbach, Z.
Powiązania:: https://bibliotekanauki.pl/articles/955298.pdf
Data publikacji:: 2015
Wydawca:: Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:: hydraulic forming
stability loss
boundary strains
normal and plane anisotropy
utrata stabilności
wysokie wytłoczki
odkształcenia plastyczne
Opis:: The paper contains two parts. In the first part, basic relationships were derived and some problems connected with stability loss during hydraulic forming of round metallic drawpieces with liquid pressure were discussed. The aim of the considerations is to test drawability of sheets by estimation of acceptable values of plastic strains and the corresponding heights of spherical shells. The analysis was based on some selected real conditions of stability loss. The influence of the coefficient of material hardening for the drawpiece, the coefficient of normal anisotropy and coefficients of plane anisotropy on acceptable values of plastic strains and heights of the formed drawpieces corresponding to the given condition of stability loss was also tested.
Źródło:: International Journal of Applied Mechanics and Engineering; 2015, 20, 4; 917-927
1734-4492
2353-9003
Pojawia się w:: International Journal of Applied Mechanics and Engineering
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 3.

Tytuł:: Derivation of relations and analysis of tube bending processes using discontinuous fields of plastic strains. Part II. Discussion and analysis of the obtained results
Autorzy:: Śloderbach, Z.
Powiązania:: https://bibliotekanauki.pl/articles/955329.pdf
Data publikacji:: 2015
Wydawca:: Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:: three simplifications
strains
wall thickness
allovable strains and ovalization
odkształcenia plastyczne
gięcie rur
naprężenia
Opis:: This paper presents the calculation results obtained on the basis of three formal simplifications (derived in Part I) gradually led into the main components of the generalized model of strain where suitable simplifications of the 1st, 2nd and 3rd type have been obtained. The paper also presents the results of considerations on the wall thickness distribution in the vertex point of the elongated layers of the bent elbow, and values of main components of the strain state and intensity of the strain (equivalent strain) depending on the bending angle for the generalized strain scheme and three simplified methods. The results are shown in the form of graphs and table.
Źródło:: International Journal of Applied Mechanics and Engineering; 2015, 20, 2; 427-435
1734-4492
2353-9003
Pojawia się w:: International Journal of Applied Mechanics and Engineering
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 4.

Tytuł:: Stored energy of plastic deformation in tube bending processes
Autorzy:: Śloderbach, Z.
Pająk, J.
Powiązania:: https://bibliotekanauki.pl/articles/264871.pdf
Data publikacji:: 2013
Wydawca:: Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:: odkształcenia plastyczne
gięcie rur
energia zmagazynowana
stal austenityczna
kocioł stalowy
plastic deformation
tube bending
stored energy
austenitic steel
boiler steel
Opis:: The paper presents an aproximate analytic method for determination of the stored energy of plastic deformation during cold bending of metal tubes at bending machines. Calculations were performed for outer points of the tube layers subjected to tension and compression (the points of maximum strains). The percentage of stored energy related to the plastic strain work was determined and the results were presented in graphs. The influence and importance of the stored energy of plastic deformation on the service life of pipeline bends are discussed.
Źródło:: International Journal of Applied Mechanics and Engineering; 2013, 18, 1; 235-248
1734-4492
2353-9003
Pojawia się w:: International Journal of Applied Mechanics and Engineering
Dostawca treści:: Biblioteka Nauki

Artykuł

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