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Modeling and simulation of ring deformation due to clamping
Author(s) -
Sölter J.
Publication year - 2009
Publication title -
materialwissenschaft und werkstofftechnik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.285
H-Index - 38
eISSN - 1521-4052
pISSN - 0933-5137
DOI - 10.1002/mawe.200900463
Subject(s) - clamping , roundness (object) , finite element method , structural engineering , machining , engineering , residual stress , ring (chemistry) , mechanical engineering , deformation (meteorology) , materials science , composite material , chemistry , organic chemistry
The paper gives an overview of analytical models for calculating the out‐of‐roundness for rings clamped in a 3‐jaw‐chuck and addresses their limitations regarding their applicability in machining practice. Results from analytical models and Finite Element Analyses (FEA) of clamping rings with two different clamping sequences are compared and discussed. Analytical models are applied to predict elastic deformations and stresses for a ring clamped on the outer and inner surface with a 3‐jaw‐chuck. A combined approach of analytical models and FEA is used to calculate the out‐of‐roundness and the stress distribution of a ring clamped with a 3‐jaw‐chuck on the outside and with segment jaws on the inside. Especially the influence of the angular position between outer and inner clamping (0 °, 60 °) will be addressed. Additionally the expected shape changes will be qualitatively predicted from simulated elastic stresses. Finally, the simulation results are compared with measured out‐of‐roundness and residual stresses of machined rings.