Mechanical Performance Modeling of CFRP bar-Steel Composite Component Based on ABAQUS

Abstract With the development of the society the large span bridges and spaces emerge continuously in the world. And the space structures are developing towards spans. The traditional building materials are heavy due to their high density and insufficient strength, which limited the development of large-span space structures. In order to build the mechanical performance model a new type of composite structure with CFRP bars as the main force bearing body is proposed, the feasibility of the proposed structure is analyzed, and six design methods for working conditions are selected., and the steel plates are used as the node connections. This article does not consider the slip problem between steel plates and CFRP bars, so the steel plates are set as rigid bodies and a new type of composite structure with end supports is designed. ABAQUS finite element analysis is used to study the axial compression and pure bending mechanical properties and failure process analysis of rod steel composite components. The simulation study on the macroscopic mechanical properties and microscopic mechanisms of failure phenomena, including the failure process analysis of the model’s load displacement, load deflection, of CFRP bar-steel composite components is carried out in the present investigation.