Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Hierarchical-level failure analysis for CFRC lattice stiffened panel
Abstract A hierarchical-level failure analysis method from carbon fiber reinforced composite (CFRC), unit-cell lattice to lattice stiffened component was developed to predict the failure load of lattice stiffened panels. A nondestructive method was applied to identify the composite parameters of lattice ribs. Axial compression experiments were carried out to reveal the failure pattern and load of unit-cell lattice and lattice-stiffened panels. Compared with the standard unidirectional laminate strength, these component failure analyses suggest knock-down factors (KDFs) to include the attenuation effect of the rib node intersection. The failure loads of CFRC lattice stiffened panels were predicted by the KDFs. The research lays a good foundation to design and manufacture large-sized CFRC lattice structures.
Highlights A hierarchical-level failure analysis method for lattice stiffened structure was proposed. The method is based on hierarchical-level testing and data processing. The hierarchical-level failure analysis method can control predication error within 10%.
Hierarchical-level failure analysis for CFRC lattice stiffened panel
Abstract A hierarchical-level failure analysis method from carbon fiber reinforced composite (CFRC), unit-cell lattice to lattice stiffened component was developed to predict the failure load of lattice stiffened panels. A nondestructive method was applied to identify the composite parameters of lattice ribs. Axial compression experiments were carried out to reveal the failure pattern and load of unit-cell lattice and lattice-stiffened panels. Compared with the standard unidirectional laminate strength, these component failure analyses suggest knock-down factors (KDFs) to include the attenuation effect of the rib node intersection. The failure loads of CFRC lattice stiffened panels were predicted by the KDFs. The research lays a good foundation to design and manufacture large-sized CFRC lattice structures.
Highlights A hierarchical-level failure analysis method for lattice stiffened structure was proposed. The method is based on hierarchical-level testing and data processing. The hierarchical-level failure analysis method can control predication error within 10%.
Hierarchical-level failure analysis for CFRC lattice stiffened panel
Bao, Wenyi (Autor:in) / Li, Ming (Autor:in) / An, Xiyue (Autor:in) / Han, Han (Autor:in) / Lou, Yunfeng (Autor:in) / Fan, Hualin (Autor:in)
Thin-Walled Structures ; 183
07.11.2022
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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