In:
International Journal for Numerical Methods in Engineering, Wiley, Vol. 25, No. 1 ( 1988-01), p. 191-212
Kurzfassung:
Rate form constitutive equations of elasto‐viscoplastic type are expressed in a manner similar to that of classical metals, but the viscoplastic part, which is no longer incompressible, is related to the rate of variation of porosity. An incremental and implicit algorithm has been implemented in a finite element program in order to simulate hot isostatic pressing of an Astroloy powder. Temperature distributions are shown to induce strong density variations in real parts during hot isostatic pressing (HIP). For one particular turbine disk, we tested the sensitivity of the final shape to different processing parameters. Computed final shapes compare well with experimental ones.
Materialart:
Online-Ressource
ISSN:
0029-5981
,
1097-0207
DOI:
10.1002/nme.1620250116
Sprache:
Englisch
Verlag:
Wiley
Publikationsdatum:
1988
ZDB Id:
241381-4
ZDB Id:
1480873-0