Research on dynamic collapse model of reticulated shell structures

The collapse model and state judgment of reticulated shell structures is one of the research focuses of spatial structures. With structure double nonlinearity and material failure strain taken into account and based on LS-DYNA software, the collapse processes of three typical reticulated shell structures are simulated in this paper. And different states are defined in the dynamic collapse processes, including dynamic local buckling, dynamic overall buckling and dynamic whole collapse. By the simulation results, collapse model of reticulated shell structures is proposed, and a reference for space structures design and construction is provided.