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In this tutorial, the Simulation air blast analysis of a composite column(wood-concrete-CFRP) in Abaqus has been investigated. The wood is modeled as a three-dimensional solid part with two layers of tension and compression. The concrete is modeled as a three-dimensional solid part. The steel bars and strips are modeled as three-dimensional wire parts. The CFRP is modeled as a shell part. You can see figures of the assembled parts below
The elastic and plastic model is considered to model the wood behavior under tension and compression load. Hill’s function coefficients are used as the plastic behavior. To model concrete material, the Concrete Damaged Plasticity is selected. The model is a continuum, plasticity-based, damage model for concrete. It assumes that the main two failure mechanisms are tensile cracking and compressive crushing of the concrete material. The elastic-plastic model and ductile damage criterion are selected for the steel reinforcement. The CFRP material data is defined as an elastic model with Hashin’s damage criterion. Damage initiation refers to the onset of degradation at a material point. In Abaqus, the damage initiation criteria for fiber-reinforced composites are based on Hashin’s theory. These criteria consider four different damage initiation mechanisms: fiber tension, fiber compression, matrix tension, and matrix compression
Dynamic explicit step with a general contact capability is a proper choice in this example. The perfect contact is assumed among all the internal surfaces. The steel reinforcements are embedded inside the host. The CONWEP air blast load is selected to define the blast procedure of the TNT charge. The proper boundary conditions and mesh are assigned to all part
After the simulation, stress, strain, tension, and compression damage, concrete failure, wood deformation, CFRP damage, and other results are available. You can see some figures for the results below
You can provide CAE, INP, and English video files of this simulation here. The cost of these files is Thirty Euros. you can click on the bellow bottom to begin the process
You can purchase the tutorial through a PayPal account, a Visa, or a Master card, just before payment, send me an email to this address: karampourp@gmail.com
