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  • Users: CKJK
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  1. CKJK

    element type problem

    So I am just wondering why the simulation is not realistic. Since all properties I gave to the sphere model is water property, in reality, it actually should not bounce upon striking on a rigid plate (for example an aluminum plate as my setting). I want to know what else I should gave in the...
  2. CKJK

    element type problem

    Hello all, I found a problem in my simulation, there is a warning that the element type is not available for the simulation. I consider it is the problem causes my rebound process not to act as the material values I give. The property I gave to my model is water property, in realistic, liquid...
  3. CKJK

    Pinching of a solid sphere between two plates

    Hello, I found something interested me from Abaqus documentation. It said this LCP solution is not supported in Abaqus/CAE. Does anyone have an idea how to simulate this kind of animation in Abaqus/CAE? I would like to give solid sphere density, viscosity, shear elasticity, and eos parameters...
  4. CKJK

    transverse shear option

    I got lost again, where can I define transverse shear stiffness? I am modeling a sphere shell being pinched by two solid plates, it has density, viscosity, shear elasticity, and eos parameters. It warned that the sphere elements need transverse shear stiffness, I remembered that I found it in...
  5. CKJK

    approximate size of simulation scale

    Hello all, If I want to simulate something on micrometer scale, should I set approximate size to 10^-6, to keep all units SI unit? Or, set approximate size on 10^-3, to use millimeter, ton, kPa unit system? Does this affect the simulation data check process? Because I tried once, there was an...
  6. CKJK

    droplet rebound simulation

    Thanks a lot! I reduced the elasticity and it indeed deformed like a droplet upon striking the plate. But, the rebound height still did not change while the viscosity was raised largely. What parameters do you think can change rebound fraction?
  7. CKJK

    droplet rebound simulation

    Is it the size of my water droplet affected the result?
  8. CKJK

    droplet rebound simulation

    I only used the viscosity range in this paper as my reference, other properties are water's density, elasticity and eos values. The title of article is "The viscosity of atmospherically relevant organic particles"
  9. CKJK

    droplet rebound simulation

    Hello, I am trying to simulate a droplet rebound process. I found what I simulated did not feel very real. I gave density, viscosity, eos, and elasticity. First, the droplet merely deformed as it strikes the aluminum plate. It should become less spherical as it contacts the plate? Besides, based...
  10. CKJK

    cohesive behavior optimization problem

    You're correct, solid sphere looks better!
  11. CKJK

    cohesive behavior optimization problem

    Hello all, I am simulating a coalescence process of two water droplets, but I found the visualization effect not that realistic. Besides, whether the two interaction surfaces are two halves of two spheres, or two whole spheres, the effect is the same. The left half of left sphere and the right...
  12. CKJK

    cohesive simulation problem

    Oh thanks a lot! It seemed to be working, I totally forgot about the cohesive behavior, I saw that in tutorials but I assumed it was created in this file.
  13. CKJK

    cohesive simulation problem

    I searched and tried kinematic coupling constraint method, but an error: Too many attempts made for this increment I guess there might be some settings I gave that were not reasonable?
  14. CKJK

    cohesive simulation problem

    But I the errors cannot be solved? Even though applying a velocity on the sphere with reference point. Do you mind edit on my file? Thank you!
  15. CKJK

    cohesive simulation problem

    Hello, I have no idea how to connect the reference point to my sphere. I watched a tutorial video on YouTube "Abaqus Standard: Contact Tutorial: Plane Stress", and did not see what else he did, do you mind to teach? Thanks!!
  16. CKJK

    cohesive simulation problem

    Hello, I am trying to simulate two spheres cohesive process, I watched a tutorial on YouTube about cohesive visualization. But something went wrong, got a error in job submission: A boundary condition has been specified on node set assembly_set-1 but this node set is not active in the model...
  17. CKJK

    trying to simulate coalescence of two water droplets

    Thanks guys! I tried cohesive behavior option, but it does not allow contact pair interactions, since I have two parts, how can I use cohesive behavior?
  18. CKJK

    trying to simulate coalescence of two water droplets

    Hello all, I am trying to simulate two spheres coalescence process. I gave two spheres the same properties: density and elasticity. I made the step dynamic/explicit, and gave velocities in predefined field. I made their surfaces have surface contact interaction, and made their element type...
  19. CKJK

    transverse shear option

    Yes, I gave it Shear type, just want to confirm that I need to define transverse shear stiffness in section editing~ Also, I am wondering when transverse shear stiffness is needed, because even if I do not give elastic values, it is still required.
  20. CKJK

    transverse shear option

    Hello, I encountered an error like this: 460 elements are missing required transverse shear stiffnesses. You may use the *TRANSVERSE SHEAR STIFFNESS option under the *SHELL SECTION option to directly specify their values, or use the *TRANSVERSE SHEAR option under the *MATERIAL option to...

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