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  1. Luke720

    How to avoid surface penetration during impact analysis

    Hello Everyone! I am in need of some help, I am modeling a sphere impacting a surface (both deformable metals) at a high velocity. Upon impact both the sphere and substrate deform significantly. Additionally I am using element failure and deletion which require internal surfaces. When I set...
  2. Luke720

    Interior surface definition in 2D, can it be done?

    I am working on a model of a sphere impacting a substrate at high velocity with element erosion on both parts. I have gotten this to work in 3D by creating the model in CAE and then adding interior surfaces by modifying the .inp file. Now I need to model the same scenario in 2D so that I can...
  3. Luke720

    Dealing with contact of eroding surfaces (similar to example problem 2.1.4)

    I am modeling a high velocity impact where both the impacting part and the substrate are eroding. My problem is similar to the example problem 2.1.4 but I am having trouble getting it to behave in the same way. The example problem says that I need to use general contact, which I am, to define...
  4. Luke720

    Transfering Results from Explicit to Standard for Heat Transfer Analysis

    Hello, I was wondering if anybody could provide me with a tip or a starting point for a problem I have encountered. I've browsed the documentation with no luck so far, maybe I'm using the wrong search terms. I am modeling high velocity impacts which generate heat using ABAQUS/Explicit. I...
  5. Luke720

    Besh mesh/partitioning tequniques for a sphere?

    Hello, I am trying to create a quality mesh on a sphere and it is causing me some trouble. The only mesh I have been able to apply is a tetrahedral mesh. I would prefer to use hex elements but I cannot seem to partition the sphere adequately for it to allow me to do so. So my question is...
  6. Luke720

    Very different result between 2D and axisymetric

    Hi, I'm working on an impact problem with a sphere hitting a deformable substrate. I did it first with and axisymetric model and I got results that look good/expected. No I want to add complexity that rules out an axisymetric approach, so I tried to recreate what I have so far in 2D. The...
  7. Luke720

    Is there a way to define sticking/separation based on certain parameters?

    I would like to specify adhesion between two surfaces based on the stress or strain at the contact surface, is this supported by abaqus? If so, would somebody mind pointing me to where I can read about it in the documentation.
  8. Luke720

    Trouble establishing contact

    Hi, I posted last week about excessively long run times when modeling the impact of a small particle onto a rigid substrate (http://www.eng-tips.com/viewthread.cfm?qid=341716). Since then I have realized that the particle was traveling through the rigid substrate with no contact. I have...
  9. Luke720

    Still pretty new: A few questions about modeling high plastic strain impact

    I hope this isn't too elementary for this forum but I was hoping some of you Abaqus gurus could give me a bit of guidance. My goal is to model the impact of a spherical metal particle (40 micron diameter) onto a large (can be assumed to be semi-infinite) substrate at high velocities (750 m/s)...

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