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In this tutorial, the Simulation air blast explosion over a composite panel(Silica glass-Aluminum-CFRP) in Abaqus has been investigated. The silica glass is modeled as a three-dimensional part. The aluminum as the middle layer is modeled as a three-dimensional solid part. The CFRP as the backplate is modeled as a shell part with sixteen layers. You can see a figure of the assembled parts below
The Silica Glass has high physical and chemical resistance, it has many applications in manufacturing. To model its material behavior under severe load, brittle approach modeling is suitable. Some brittle material models can be used in the Abaqus CAE or input coding. To model the aluminum material model, the Johnson-Cook hardening and damage are selected. The Johnson-Cook (JC) (Johnson & Cook, 1985) constitutive model is the most widely used constitutive model in predicting flow stress behavior because of its simplicity with fewer material constants. It is a temperature, strain, and strain-rate-dependent phenomenological model and is successfully used for a variety of materials with different ranges of deformation temperature and strain rates. To model CFRP behavior under blast load, Hahsin’s damage 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
Dynamic explicit step with five millisecond time is considered. The contact between the layers is assumed as the perfect contact, and a general contact is generated to consider all the other contacts in the contact domain. The CONWEP blast load method is used to define the mass and the location of the explosive charge. The proper boundary conditions are assigned to the symmetric areas. The mesh should be fine to achieve the correct results
After the simulation, stress, strain, damage, failure, detonation pressure, diagrams, 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
