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  1. mhdiab

    Piezoelectric Actuator Position Constraint

    In the lab , the PZT and the bar are glued together. In Abaqus, I am using a tie constraint which is basically a perfect bond. My issue is not what constraint to apply, but how to place the PZT in a specific location on the bar. When you add parts to the assembly, the are separate parts until...
  2. mhdiab

    Piezoelectric Actuator Position Constraint

    I am running a dynamic/implicit analysis. Yes, I am simulating sinusoidal wave generation using pzt1 and voltage recovery at pzt2. I am using the set-up for structural health monitoring. The voltage means displacement. You are right, it would be possible to output displacement without the pzt2 ...
  3. mhdiab

    Piezoelectric Actuator Position Constraint

    Yes I have posted to multiple forums, usually I don't get responses when posting questions about piezoelectric simulations. So I am trying to simulate an experiment I am performing in the lab. I have a rectangular bar and I have glued a piezoelectric sensor (acting as a transmitter) to the...
  4. mhdiab

    Piezoelectric Actuator Position Constraint

    Hey, I am trying to mount a piezoelectric actuator(PZT) on a plate. The PZT is rectangular and I have created a tie constraint between a surface on the bar and one of the PZT's surfaces. How do I put the PZT at a certain location on the bar in the assembly? I am assigning a coincident point...
  5. mhdiab

    Abaqus Simulation Run Time

    2.I have chosen the appropriate mesh and time increment size based on CFL and Blake's criteria. I am trying to simulate with a high excitation frequency(100Khz) and I would need about 16000 time increments in addition to a high number of elements. Last time I ran the simulation I had 3000...
  6. mhdiab

    Abaqus Simulation Run Time

    Hey all, I am running a wave propagation simulation on Abaqus that requires a large number of element and a very small time step(increment). I am using the Dynamic Implicit analysis type. When I run the simulation ,it take a very long time. I even tried using a faster computer(32 GB of RAM) but...
  7. mhdiab

    Mesh and Increment Size-Lamb Wave Propagation Simulation

    Hey all, I am simulating Lamb wave propagation in a plate and was wondering if anyone knows where I can find the criteria to chose the mesh size and the time increment size. Thank you. Regards,
  8. mhdiab

    Electric Potential B.C. in the Dynamic/Explicit Step

    Okay thank you for the tip, unfortunately my professors are not familiar with Abaqus at all. I will however go over the documentation to get a better understanding of the different analysis types. Do you know what step analysis type should I use if I need a time-dependent electromagnetic...
  9. mhdiab

    Electric Potential B.C. in the Dynamic/Explicit Step

    Hey all, I am trying to apply an Electric Potential B.C. to a surface. I want to use the dynamic/explicit analysis type, however, when I select that as my step type, the Electric Potential B.C. option disappears from the edit B.C. window! Is that due to a license limitation or an error I might...
  10. mhdiab

    Step Type-Ultrasonic Simulation

    Hey, Wow things make sense now! The wave was reaching the far end of the plate in ZERO time with the static analysis! I am definitely interested in the time-dependent phenomena. Do you have any idea which analysis type is the best for an ultrasonic wave propagation simulation? Also, I think I...
  11. mhdiab

    Step Type-Ultrasonic Simulation

    Hey all, I am trying to simulate ultrasonic waves(Lamb waves) in a plate. I was wondering what type of step analysis I should use. I am currently using the static/general step but I am not getting good results. Also, what is the difference between the different steps? I have also tried to run...
  12. mhdiab

    Abaqus: element properties error and PZT actuation problem

    Hey, I am having the exact same issue , trying to simulate the exact same experiment! Have you made any progress? I am really struggling to get the simulation to work and would really appreciate your help. Regards.
  13. mhdiab

    Lamb wave generation in bars and plates

    Hello! I am trying to generate acoustic waves in aluminum bars and plates to simulate an experiment we are performing in the lab. We use piezoelectric actuators to generate and receive the waves in the lab. I know that similar simulations have been done in Abaqus, however, I an having...

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