On the significance of basis interpolation for accurate lumped mass isogeometric formulation

Although the consistent mass isogeometric formulation enjoys superior frequency accuracy compared with the conventional finite element method, the lumped mass isogeometric formulation performs very poorly and only has a 2nd order accuracy regardless of the basis degree. In fact, an increase of basis...

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Veröffentlicht in:	Computer methods in applied mechanics and engineering 2022-10, Vol.400, p.115533, Article 115533
Hauptverfasser:	Li, Xiwei, Wang, Dongdong
Format:	Artikel
Sprache:	eng
Schlagworte:	Accuracy Basis functions Basis interpolation Finite element method Frequency accuracy Interpolation Isogeometric analysis Lumped mass formulation Mathematical analysis Smoothness Structural vibration Transformed isogeometric basis function Vibration analysis
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