TY - GEN
T1 - Non-linear numerical simulation of coiling by elastic finite strain model
AU - Weisz-Patrault, Daniel
AU - Ehrlacher, Alain
AU - Legrand, Nicolas
AU - Mathey, Eliette
N1 - Publisher Copyright:
© (2015) Trans Tech Publications, Switzerland.
PY - 2015/1/1
Y1 - 2015/1/1
N2 - The coiling process under traction is considered, with an incoming residual stress profile (that can be sufficiently compressive to make the strip buckle): a flatness defect. This paper details a 3D non-linear numerical simulation taking into account the contact of the strip on itself, with a perfect contact law. The model relies on elastic behavior at finite strain because of large rotations. Even though the behavior is elastic, the yield Von Mises criterion is computed and gives information about flatness defects (plastic zones are approximated by zones where the yield stress is exceeded). Furthermore, the paper aims at very short computation times. The modeling strategy relies (for each time step) on two analytical sub-steps. Numerical minimization procedure is used in order apply weak boundary conditions. Results are discussed with respect to a comprehensive Finite Element simulation and good agreement is observed.
AB - The coiling process under traction is considered, with an incoming residual stress profile (that can be sufficiently compressive to make the strip buckle): a flatness defect. This paper details a 3D non-linear numerical simulation taking into account the contact of the strip on itself, with a perfect contact law. The model relies on elastic behavior at finite strain because of large rotations. Even though the behavior is elastic, the yield Von Mises criterion is computed and gives information about flatness defects (plastic zones are approximated by zones where the yield stress is exceeded). Furthermore, the paper aims at very short computation times. The modeling strategy relies (for each time step) on two analytical sub-steps. Numerical minimization procedure is used in order apply weak boundary conditions. Results are discussed with respect to a comprehensive Finite Element simulation and good agreement is observed.
KW - Coiling process
KW - Contact
KW - Finite strain
KW - Multiplicative elasticity
KW - Non-linear simulation
U2 - 10.4028/www.scientific.net/KEM.651-653.1060
DO - 10.4028/www.scientific.net/KEM.651-653.1060
M3 - Conference contribution
AN - SCOPUS:84944237544
SN - 9783038354710
T3 - Key Engineering Materials
SP - 1060
EP - 1065
BT - Key Engineering Materials
A2 - Ofenheimer, Aldo
A2 - Poletti, Cecilia
A2 - Schalk-Kitting, Daniela
A2 - Sommitsch, Christof
PB - Trans Tech Publications Ltd
T2 - 18th International ESAFORM Conference on Material Forming, ESAFORM 2015
Y2 - 15 April 2015 through 17 April 2015
ER -