In this tutorial the Simulation low energy impact on the concrete slab with pre tensioned bars reinforced with GFRP in Abaqus has been studeid. Concrete is modeled as a three-dimensional solid part. The GFRP part is model as plannar shell part. The steel basrs are modeled as three-dimensional wire part and the projectile as discrete rigid part. You can see a figure of the aseembled parts below
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 To model concrete behavior under impact load, the CDP model is selected. 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. Hashin damage criterion is selected for the GFRP with 8 diffrent layers to consider the damage during the impact. The elstic-plastic property is also used to model the steel bars behavior.
Dynamic explicit step witha mass scale to make accelaration in the simulation has been considered. The general contact angorithm with contact property is defiend for all parts, the steel bars are embeded inside the concrete slab, and tie constraint was use between concrete slab and GFRP plate. The bounday condition is assigned to concrete slab and velocity to the projectile. The stress is applied to steel bars to be pre tensioned. This can be done with temperature or stress. The proper mesh size is considered for all part.
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 Twenty-Six Euros. you can click on the bellow bottom to beginning 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: email@example.com