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  1. Hussain2339

    Excessive deformation errors

    Dear all, I am simulating the point load on top aluminium heads. I have assigned surface-to-surface interaction between the bearing plate and the TOP Hat. Because the model is very complex, I am using dynamic explicit model. It is giving me an error of excessive deformations. What possible...
  2. Hussain2339

    Deflection time history

    Dear all I am doing timber impact on the aluminum plates. My numerical and experimental curves have some lag. Can you please advise, on how can I improve the model? Picture is attached
  3. Hussain2339

    Acceleration of Projectile In Impact test

    Dear All, I am simulating the Impact test as shown in the Figure. I want to get the acceleration of the projectile after impact. There are 2 ways of doing that. Which one seems to be correct? 1. I get the acceleration of the central model at the surface of the projectile 2. I Find the...
  4. Hussain2339

    IMPACT FORCE ON ALUMINIUM PANELS

    Dear all, I am dropping a projectile of 4 kg m with a velocity of 1.41 m/sec on an aluminum plate. The acceleration/deceleration I get from the Numerical model is 160g and from the Experiment is 3 gs. Can any one advise please what can be the issue?
  5. Hussain2339

    4 Point bending test -Abaqus

    Dear all I am doing 4 points bending test in Abaqus. After achieving some results, it's aborted. The results obtained for the simulated part show close agreement I have tried different mesh sizes, interactions but all in vain
  6. Hussain2339

    Time increment required is less than the minimum specified

    Dear All, I am simulating a 4-Point bending test and I got the following error. Error in job Small: Time increment required is less than the minimum specified Error in job Small: THE ANALYSIS HAS BEEN TERMINATED DUE TO PREVIOUS ERRORS. ALL OUTPUT REQUESTS HAVE BEEN WRITTEN FOR THE LAST...
  7. Hussain2339

    Normal cannot be completed in 4 elements

    Dear all, I am simulating 4-points bending on extruded panels. I came across an error that "Normal cannot be completed in 4 elements". Can you please advise how to fix this?
  8. Hussain2339

    Force~Time history

    Dear all, I am simulating the Impact of Timber Projectile on an Aluminum Panel. The value of maximum deflection I get is quite close to experimental but the time is almost 10 times (See the pic attached).
  9. Hussain2339

    Force Time history

    Dear all, I am simulating the Impact of Timber Projectile on an Aluminum Panel. The value of maximum deflection I get is quite close to experimental but the time is almost 10 times (See the pic attached). Seeking for advice.
  10. Hussain2339

    X is not monotonic

    Deal all I am simulating a 4-point bending test. When I Try to X and Y data, I receive the message that the X value is not monotonic and the interpolation is under-defined How to address this issue?
  11. Hussain2339

    Acceleration at Impact

    Dear All. I am simulating impact tests using Timber projectile and Aluminum Target. I want to find the acceleration of projectile on impact at 2 different locations as shown in the Figure. In the output Abaqus is giving its value as zero. Can you please advise how to get the value of...
  12. Hussain2339

    Negative Jacobian Error

    How do Solid elements in Abaqus cause negative jacobian errors? Sharing any helpful or informative link will be appreciated.
  13. Hussain2339

    Effect of Geometry

    Dear ALL, I am simulating impact load on extruded aluminum panels. When I use planner geomertery, The results are okay but when I use extrusion, the results are changed considerably. As the Geometry of my samples can't be developed using a planner, what should I adopt to get closer results...
  14. Hussain2339

    Fracture Modelling

    Dear all, I am modeling an Aluminum plate fractured by impact loading. Find the picture ATTACHED. It is not separated and behaves like gum. Can you please advise?
  15. Hussain2339

    CFN , CFS and CFT

    Dear All, I am working on the simulation of dynamic impact loading. I can't find that what is the relation of CFN, CFS, and CFT with each other? 1. Contact force due to contact pressure (CFN) 2. Contact force due to friction (CFS) 3. Total Contact force due to contact pressure and friction...
  16. Hussain2339

    Time period for Dynamic explicit analysis

    I am simulating the impact of a projectile on an aluminum plate. When I select automatic time increment, my model runs well but when I reduce time increment, my model shows excessive distortion error. cs are attached for analysis. Can you please advise me accordingly?
  17. Hussain2339

    Penetration of Surfaces

    I am simulation pressure loading on Aluminum Panels. My Panel is penetrating the rigid body (Support behind it). I have used General contact.How can I resolve this issue? Find attached the picture
  18. Hussain2339

    I am simulating Aluminium plates su

    I am simulating Aluminium plates subjected to pressure loading. If I remove bolts, I get the results but when I add bolts as highlighted in the pic, It shows an error that too many attempts were made for this increment. I tried General static and dynamic implicit, error is the same but when...
  19. Hussain2339

    Dear All, I am simulating Impac

    Dear All, I am simulating Impact loading on an Aluminium plate. It's a Circular projectile and square Aluminium Plate. I get Contact for at lowe step time but when I increase the step time to get clear curve for displacement, it shows the value of force as zero. What can be the possible...
  20. Hussain2339

    Installation error

    I am installing Abaqus on my laptop and experienced this error. "Abaqus/CAE Kernel exited with an error". How can I fix it?

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