Bird impact analysis of a composite wind turbine blade. Abaqus, cementitious, experiment, impact, material, sph. Catia is one of the most powerful software in mechanical, civil,electrical engineering which can handle most of the engineering fields from cad, cae and cam. Threedimensional finite element modeling of drilling cfrp. Fe models were developed in abaqusexplicit to simulate several physical. Developed a macromechanical computational model in abaqus to predict the interlaminar regions more susceptible to damage during a low velocity impact event for woven carbon fiber composites, which was validated with experimental work. Aug 15, 2017 the extraordinary properties of carbon fiber reinforced polymer cfrp composites and its outstanding performance in their structural applications, especially in aerospace industry where high strength to weight ratio is highly desirable, have given them a steadfast attention in the engineering materials research world. This happens for whatever i set the initial velocity as tried 10ms1 to 250ms1. Dynamic behavior of low rigidity frame under impact load hiroshi kurimoto, makoto saito, ph. Velocity low high deformation global local response time ms s s ms strain 50% strain rate 0 s 1 pressure abaqus explicit. Create a threedimensional, deformable planar shell to represent the circuit board.
Abaqus cae step by step how to use the material damage in high velocity impact problem. The fea analysis for abrasive flow machining to be perform in abaqus for validating the impact effect of abrasives with experimental work. Note that milstd1540c and milstd810e require this format for certain shock environments. I suggest you do the example of an impacting ball in the abaqus documentation to make your.
Highspeed 3d digital image correlation was employed to monitor the deformation and strain at the. The final plot, figure 1270, shows how the three chips change velocity during impact. Developed a macromechanical computational model in abaqus to predict the interlaminar regions more susceptible to damage during a lowvelocity impact event for woven carbon fiber composites, which was validated with experimental work. In this paper the most advanced features currently available in fe analysis abaqusexplicit have been used to predict the behaviour of a composite structure under low velocity impact. Experimental and simulation study of lowvelocity impact. The first model aimed to validate hashins 2d criterion under a dynamic load and to assess the effectiveness of resinrich layers for delamination.
Deformation and damage mechanisms of laminated glass windows were investigated experimentally and numerically under high velocity soft impacts. The lowvelocity impact response of laminated composite. Abaqus users reaction force history in lowvelocity. The lowvelocity impact response of laminated composite plates with holes dr. Off the top of my head, i would create element sets for each of the respective portions of the model bullet and plate and then use energy output, elset to request specific relevant history output. Droptest fsi simulation with abaqus and flowvision based. Dynamic and impact analysis of aerospace vehicles using abaqusexplicit 17 methodology used for analysis of satellite impact was to start simple and add increasing complexity methodology use existing loads dynamics model for analysis can translate from nastran using fromnastran utility define impact analysis. Droptest fsi simulation with abaqus and flowvision. We upload our video tutorial in sellfy, a secure network for upload digital products. Fluidstructure interaction simulations with abaqusexplicit summary. How can i simulate progressive impact damage in composite. The density of sphere is 7800 kgm3 the density of composite plate is 1540 kgm3 the velocity of impact is 4.
Numerical analyses of low velocity impacts on composite. Help me with abaqus learn abaqus by video tutorials with. I have requested an output of the velocity of the reference point in history output, the graph shows the velocity of the projectile is constant throughout the step. Impact tests were performed using silicon rubber projectiles at a velocity range of 100180 m s. In this study, the effect of the impact angle of a projectile during lowvelocity impact on kevlar fabrics has been investigated using a simplified numerical model. Nowadays, the use of composite materials in aeronautics has become more and more frequent. The model simulates an impactor as a shell rigid body while the composite samples were simulated in two dimensional model. With increasing train speeds and platform overcrowding, passenger safety is becoming an increasing concern. The explicit finite element computer software, abaqusexpli cit, was employed. Apr 15, 2016 firstly, a numerical modeling of sma reinforced composite laminate under low velocity impact load with impact velocity of 10 ms is established based on its constitutive model implemented by the vumat subroutine of commercial software abaqus. Investigation on low velocity impact resistance of sma. Hello i am doing low velocity impact of a steel sphere on a laminated composite plate in abaqus.
Dynamic and impact analysis of aerospace vehicles using. Modeling of highrate ballistic impact of brittle armors with abaqus explicit n. The impact is assumed to be a half sine loading with a hand caclulated time duration expressed a a harmonic frequency. All the examples ive seen use a predefined field to specify an initial velocity. Hes set the initial velocity of the projectile using a boundary condition. In order to examine the ballistic resistance of plain concrete and reinforced concrete targets the perforation tests conducted in the laboratory, on square concrete targets size 450 mm x 450 mm x 80 mm of plain concrete and reinforced concrete and to validate the experimentally obtained results numerical simulations were carried out in abaqus explicit finite element code. Low velocity impact on the four layers of composite while hashin failure considered simulation using in abaqus. The impact is assumed to be a half sine loading with a hand caclulated. For impact analysis displacements and stresses are obtained. What unit should i specify for density and velocity. Numerical modeling of low velocity impact response of metal foam cored sandwich panels were performed on bare foam of 20 mm and 30mm thick. Jul 24, 2015 impact with rigid tutorial using abaqus. I am having problems in defining density of sphere.
Numerous papers and researches are studied the experimental and numerical simulation of low velocity impact on composite structures. Deformation and damage mechanisms of laminated glass. My interest is to know the reaction force during the impact. In this study, the effect of the impact angle of a projectile during low velocity impact on kevlar fabrics has been investigated using a simplified numerical model. Open abaqus cae you will find a link on the start menu. Abaqus users reaction force history in lowvelocity impactdea. Abaqusexplicit has been chosen to perform nonlinear transient numerical analyses in order to use its large library of elements and material models. The purpose of the analysis is to determine if the fluid sloshing will cause the lid to lift from the box. A low velocity impact event on a flat composite plate has been evaluated. In this tutorial you will run a finite element simulation of this problem.
Numerical modelling of ballistic impact response at low. Damage modelling of large and small scale composite panels. Investigated the impact, tension and shear response of composites reinforced with zno nanowires. Finite element analyses of lowvelocity impact damage of foam.
Modeling of highrate ballistic impact of brittle armors with. The shock response spectrum is a useful tool for estimating the damage potential of a shock pulse, as well as for test level specification. Numerical simulation of low velocity impact analysis of. Equivalent diameter was increases with decrease of the impact velocity till ballistic limit however at low velocity higher global deformation had been found when compare to higher velocity for the same specimen. They proposed the best procedure which can serve as benchmark method in low velocity impact modeling of composite structures for future investigations. Simulation spine, neck, and head during a rearend collision. Deformation and damage mechanisms of laminated glass windows. Firstly, a numerical modeling of sma reinforced composite laminate under low velocity impact load with impact velocity of 10 ms is established based on its constitutive model implemented by the vumat subroutine of commercial software abaqus. Fluidstructure interaction simulations with abaqusexplicit. Abaqus biorid ii crash dummy model combines low yield strength with good plastic forming characteristics, enabling it to. Jan 21, 2011 dear users, i was trying to simulate low velocity impact of a circulat isotropic plate with a spherical punch. Abaqusexplicit simulation of the low velocity impact of an. The aim of the project is to model, and analyse hammer of impact testing machine.
Simulation of ball impact on plate perforation using abaqus tutorial here i have used abaqus explicit analysis for perforation and element deletion has been used. A threephase model characterizing the lowvelocity impact response of smareinforced composites under a vibrating boundary condition. Pdf a reliable virtual tool for the numerical simulation of the lowvelocity impact. Abaqus impact analysis tutorial as recognized, adventure as well as experience practically lesson, amusement, as competently as pact can be gotten by just checking out a book abaqus impact analysis tutorial after that it is not directly done, you could agree to even more visvis this life, roughly the world. A 2d finite element model using abaqus has been developed in order to understand the role of nanoclay in enhancing the low speed impact behavior of laminated woven kevlar nanocomposite.
In addition, when the simulation includes more than one. Various failure modes have been investigated such as cfrp face layer rupture, damage initiation in nomex core and elastoplastic behaviour of metallic structure. Due to comparatively low cost, ease of rapid onsite manufacture, and high early strength, the use of ultra high performance. Low velocity repeated impacts wereperformed by using pendulum type instrumented impact tester ceast, resil 25 at energylevels ranging. In this paper the most advanced features currently available in fe analysis abaqus explicit have been used to predict the behaviour of a composite structure under low velocity impact. Example water jetdrops impact on membranestep by step method.
Any advice on the simulation of impact load by abaqus. This is a mode superposition method that requires the model to be completely linear. Modeling of highrate ballistic impact of brittle armors. This tutorial covers a basic example of a ball being fired at an aluminium plate. The cfd mesh with local adaptation near impact region 3. Results show that impactor geometry and thickness of the fml plate were the significant process parameters related to the response of low velocity impact analysis of fml and fiber configurations. Introduction the performance of brittle, cementitious armor panel under highrate impact is contingent upon a wide array of variables including but not limited to projectile and target geometry, impact velocity, type of projectile material, and angle of attack of the projectile. Abaqus tutorial 4 part module 1 creating the plate to create the plate the base feature, you create a threedimensional, deformable, shell planar part according to the instructions below.
Pdf advanced simulation of lowvelocity impact on fibre. Ive some experience with abaqus, but not so much with explicit. At the beginning of the simulation, the chips all have the same downward velocity after the 1 meter drop. The numerical procedure simulating bird strikes has been applied on a. Each example is carefully designated to address some professional points while it is still completely comprehensible for those who are new to these software. Crash test impact test this tutorial will show how to do the crash test in abaqus explicit. An element deletion criterion is defined and therefore the plate ruptures and allows the ball to pass through. Drop test simulation made easy with ansys simulation. Dynamic behavior of low rigidity frame under impact load. The implementation of mesoscale models is complex and usually involves long computation time, in contrast to the practical industry needs to obtain accurate results rapidly. For example, in manufacture process many defects like. The equations are integrated to the wall without assuming an universal law for the velocity profile and an equilibrium conditions for k and. Dear users, i was trying to simulate low velocity impact of a circulat isotropic plate with a spherical punch.
The following figures give the results of bird impact analysis on composite wind turbine blade. The purpose of this report is to explain the shock response spectrum and to give a. This analysis solves much faster than the transient approaches and uses significantly fewer resources. The surface that the circuit board will impact is effectively rigid. A threephase model characterizing the lowvelocity impact. Using abaqusexplicit, the dynamic impact behavior of the device, consisting of a low rigidity. From the start session menu select create model database with standardexplicit model. I want to model low velocity impact damage in composite plates. How to get exact value of residual velocity and energy. The circuit board can be modeled as a thin, flat plate with chips attached to it.
Drilling of cfrp materials to facilitate holes for component assembly. Prediction of low velocity impact damage in carbonepoxy. The problem is that the model predicts the wrong behavior for k and. Abaqus is one of the best software which covers most of engineering fields in terms of simulation and analysis. The objective of this work is to evaluate effect of holes on the delamination that occurred by low velocity impact on. In this work, the lowvelocity impact tests of smasglass fibersepoxy resin composite. The extraordinary properties of carbon fiber reinforced polymer cfrp composites and its outstanding performance in their structural applications, especially in aerospace industry where high strength to weight ratio is highly desirable, have given them a steadfast attention in the engineering materials research world.
In the step module i select boundary conditions, click the reference point and enter a velocity. Nice greeting im trying to simulate the surface wave impact load by using abaqus program. Experimental and numerical study of concrete targets under. Simulation resources and abaqus documentation for abaqus impact and crash analysis technology. The sphere has radius r, mass m, and is launched with initial velocity v 0 towards the rigid surface. The second study involved lowvelocity impact testing of both smallscale and largescale plates conducted in the u. Abaqusexplicit simulation of the low velocity impact of an abaqusexplicit for robust solution of complex, highly nonlinear models including contact, col lapse, buckling, and plasticity. Its a simple impact problem a projectile hitting a sphere. Fem modeling of nanocomposites low speed impact behavior. Parametric analysis has been performed using different impact locations and velocity vectors.
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