Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - A new fictitious time for the dynamic relaxation (DXDR) method
AU - Kadkhodayan, A.
AU - Alamatian, J.
AU - Turvey, G. J.
PY - 2008/5/7
Y1 - 2008/5/7
N2 - This paper addresses the development of the DXDR method by introducing a modified fictitious time (MFT) increment. The MFT is determined by minimizing the residual force after each iteration. The rank of the convergence rate shows the advantage of the new method. The results obtained from plate and truss analyses demonstrate the potential of the new method. It is shown that, compared with a unit fictitious time, the MFT is more efficient, especially during the initial iterations. Moreover, MFT does not impose any additional constraints on the DXDR method.
AB - This paper addresses the development of the DXDR method by introducing a modified fictitious time (MFT) increment. The MFT is determined by minimizing the residual force after each iteration. The rank of the convergence rate shows the advantage of the new method. The results obtained from plate and truss analyses demonstrate the potential of the new method. It is shown that, compared with a unit fictitious time, the MFT is more efficient, especially during the initial iterations. Moreover, MFT does not impose any additional constraints on the DXDR method.
KW - convergence rank
KW - dynamic relaxation (DR)
KW - fictitious time increment
KW - residual force
KW - structural analysis
U2 - 10.1002/nme.2201
DO - 10.1002/nme.2201
M3 - Journal article
VL - 74
SP - 996
EP - 1018
JO - International Journal for Numerical Methods in Engineering
JF - International Journal for Numerical Methods in Engineering
SN - 0029-5981
IS - 6
ER -