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The electromagnetic field numerical results could not be found
<p>It appears that the pre-processing software has recently become unable to display the results of the EM solution, only the solid mechanics results.</p><p>Please help me.</p><p>I solved the result file with the R13 solver and opened it with LS-Prepose V4.5.24 to view the results of the current density and magnetic field .</p><p></p><p>However, the same d3plot file, opened with LS-Prepose V4.10.8, no longer displays these results.</p><p></p><p> </p>
Avatar
gcpeng@hnu.edu.cn April 8, 2025
LSTC LS-Dyna installation steps after SERVICE STATUS is Running
<p>Installing LSTC LS-Dyna steps after installing a New Network License for Windows. I followed the instructions for installing a new Network License for Windows. I requested a license. Received the License File. Imported the License file to the server.Installed the LSTCLM.exe and started the service. The SERVICE STATUS is RUNNING. I verified the license and got the License Summary. I verified that Port 31010 is open for traffic.<br>What are the next steps? How do I install the software on the server? How do I install client on the client machine? and how to connect client to the server?</p>
Avatar
hatefm@lincolnu.edu April 7, 2025
How to set up detection points that follow the fluid motion?
<p>I use S-ALE for solution calculation. I want to set up some monitoring points that move along with the fluid to monitor the fluid velocity. I would like to learn the specific steps for setting up these monitoring points.</p>
Avatar
Tim T April 2, 2025
Rubber penetrates through wires
<p>Hello everyone. I am modeling a set of wires clamped between two rings on both sides, a rubber layer below and above the wire, a total of 4 layers of wires.</p><p>The wire is modeled with beam elements to speed up the calculation. I apply a pressure of 7 MPa to the inner rubber cylinder. The rubber fills the space in the pipe and a plug is formed. After applying pressure and restoring kinetic energy, I apply a second pressure of 10 MPa to the outer rubber layer to check the tightness of the resulting plug.</p><p>One of the clamps can move along its axis when pressing the pressure on the walls.</p><p>At first, everything goes well, but at some point the rubber begins to penetrate through the wires, and at the second pressure it is strongly deformed.<br>I adjusted the contact rigidity, but this did not help. Please tell me other ways to stop the rubber from penetrating the wires?</p><p></p><p></p>
Avatar
javat33489 April 1, 2025
Use the solution calculated by the last K file as the initial condition
<p class="" data-start="239" data-end="461">I am working on a simulation where I need to compute the response of an object under two different loadings. The first loading is always the same, but it takes a long time to compute, while the second loading is different.</p><p class="" data-start="463" data-end="846">If I have to compute both loadings every time (first and second), the total computation time will be very long. My question is whether there is a way to use the solution from the previous K-file as initial conditions for subsequent runs? This would allow me to only compute the first loading once and then just focus on the second loading in future simulations, saving a lot of time.</p><p class="" data-start="848" data-end="1036">Is there a method to save the results from the first loading and use them as the starting point for future calculations? If anyone has a solution or any suggestions, I would appreciate it!</p><p class="" data-start="1038" data-end="1059">Thank you in advance!</p>
Avatar
feng.jiang@northwestern.edu April 1, 2025
Using Usermat version of MPP DYNA R14 on HPC
<p>Hi,</p><p>We are currently trying to run a set of simulations on TACC's Stampede3 using our own Linux executable for MPP DYNA, which has a user-defined material model. Is there any information/guidance on how to do this correctly (e.g. which files to move to the HPC and command lines to run analyses)? I reached out to TACC and they did not have any information on this besides the information on this link: https://docs.tacc.utexas.edu/software/ansys/.</p><p> </p><p>Thanks in advance</p>
Avatar
dylanmc3@illinois.edu April 1, 2025
Impactor Not Moving
<p>Hi, I'm trying to simulate an impact between a tube and rigid body, but I have now found that my impactor won't move although I gave it an initial velocity. The results in PrePost show the impactor just remaining stationary. I have run similar simulations before and they always worked. Thank you for your help.</p>
Avatar
oliver.paeshuys@cranfield.ac.uk April 1, 2025
lsdyna磨削求残余应力和材料去除率
lsdyna磨削求残余应力和材料去除率
Avatar
2494886951@qq.com April 1, 2025
Installation of MPP solver and environment variable settings
<p>Hello, I want to post two problems when I install LS-Dyan on Linux system. </p><div data-olk-copy-source="MessageBody">1. Parallel Computing with MPP: I’ve selected the MPP option for parallel computation, but I encountered an error message when trying to run it. Could you help me understand how to properly set it up for parallel computing?</div><div></div><p>2. <span data-olk-copy-source="MessageBody">When I used this command line to run K file, it give an error. But I can run this K file in LS-Run.</span></p><p></p><p>I welcome any feedback here.  Thank you!</p>
Avatar
feng.jiang@northwestern.edu March 31, 2025
Issue with Selective Mass Scaling
<p>Hello All,<br><br>I am trying to perform a dyanmic crash simulation in LSDYNA.<br><br>In the FE Model I have a part with two mesh sizes,<br>Size 1: with 3mm + 1mm(at thin areas) and Size 2: with 1mm mesh. Both are tetra meshed.<br><br>With my current timestep of E-4 the part was having huge mass addition that is why I decided to add the part in the SMS set but when I try to run the simulation,<br>with Size 1: I get out-of-range forces at a location which is far from the part in question.<br>and with Size 2: the simulation does not run at all. It's stuck before calculation go to the transient phase.<br><br>Did anyone face similar issues? Any suggestions are greatly appreciated.<br><br>Thank You.</p>
Avatar
bhuhanptl3@gmail.com March 31, 2025
The electromagnetic field numerical results could not be found
<p>It appears that the pre-processing software has recently become unable to display the results of the EM solution, only the solid mechanics results.</p><p>Please help me.</p><p>I solved the result file with the R13 solver and opened it with LS-Prepose V4.5.24 to view the results of the current density and magnetic field .</p><p></p><p>However, the same d3plot file, opened with LS-Prepose V4.10.8, no longer displays these results.</p><p></p><p> </p>
Avatar
gcpeng@hnu.edu.cn April 8, 2025
LSTC LS-Dyna installation steps after SERVICE STATUS is Running
<p>Installing LSTC LS-Dyna steps after installing a New Network License for Windows. I followed the instructions for installing a new Network License for Windows. I requested a license. Received the License File. Imported the License file to the server.Installed the LSTCLM.exe and started the service. The SERVICE STATUS is RUNNING. I verified the license and got the License Summary. I verified that Port 31010 is open for traffic.<br>What are the next steps? How do I install the software on the server? How do I install client on the client machine? and how to connect client to the server?</p>
Avatar
hatefm@lincolnu.edu April 7, 2025
How to set up detection points that follow the fluid motion?
<p>I use S-ALE for solution calculation. I want to set up some monitoring points that move along with the fluid to monitor the fluid velocity. I would like to learn the specific steps for setting up these monitoring points.</p>
Avatar
Tim T April 2, 2025
Rubber penetrates through wires
<p>Hello everyone. I am modeling a set of wires clamped between two rings on both sides, a rubber layer below and above the wire, a total of 4 layers of wires.</p><p>The wire is modeled with beam elements to speed up the calculation. I apply a pressure of 7 MPa to the inner rubber cylinder. The rubber fills the space in the pipe and a plug is formed. After applying pressure and restoring kinetic energy, I apply a second pressure of 10 MPa to the outer rubber layer to check the tightness of the resulting plug.</p><p>One of the clamps can move along its axis when pressing the pressure on the walls.</p><p>At first, everything goes well, but at some point the rubber begins to penetrate through the wires, and at the second pressure it is strongly deformed.<br>I adjusted the contact rigidity, but this did not help. Please tell me other ways to stop the rubber from penetrating the wires?</p><p></p><p></p>
Avatar
javat33489 April 1, 2025
Use the solution calculated by the last K file as the initial condition
<p class="" data-start="239" data-end="461">I am working on a simulation where I need to compute the response of an object under two different loadings. The first loading is always the same, but it takes a long time to compute, while the second loading is different.</p><p class="" data-start="463" data-end="846">If I have to compute both loadings every time (first and second), the total computation time will be very long. My question is whether there is a way to use the solution from the previous K-file as initial conditions for subsequent runs? This would allow me to only compute the first loading once and then just focus on the second loading in future simulations, saving a lot of time.</p><p class="" data-start="848" data-end="1036">Is there a method to save the results from the first loading and use them as the starting point for future calculations? If anyone has a solution or any suggestions, I would appreciate it!</p><p class="" data-start="1038" data-end="1059">Thank you in advance!</p>
Avatar
feng.jiang@northwestern.edu April 1, 2025
Using Usermat version of MPP DYNA R14 on HPC
<p>Hi,</p><p>We are currently trying to run a set of simulations on TACC's Stampede3 using our own Linux executable for MPP DYNA, which has a user-defined material model. Is there any information/guidance on how to do this correctly (e.g. which files to move to the HPC and command lines to run analyses)? I reached out to TACC and they did not have any information on this besides the information on this link: https://docs.tacc.utexas.edu/software/ansys/.</p><p> </p><p>Thanks in advance</p>
Avatar
dylanmc3@illinois.edu April 1, 2025
Impactor Not Moving
<p>Hi, I'm trying to simulate an impact between a tube and rigid body, but I have now found that my impactor won't move although I gave it an initial velocity. The results in PrePost show the impactor just remaining stationary. I have run similar simulations before and they always worked. Thank you for your help.</p>
Avatar
oliver.paeshuys@cranfield.ac.uk April 1, 2025
lsdyna磨削求残余应力和材料去除率
lsdyna磨削求残余应力和材料去除率
Avatar
2494886951@qq.com April 1, 2025
Installation of MPP solver and environment variable settings
<p>Hello, I want to post two problems when I install LS-Dyan on Linux system. </p><div data-olk-copy-source="MessageBody">1. Parallel Computing with MPP: I’ve selected the MPP option for parallel computation, but I encountered an error message when trying to run it. Could you help me understand how to properly set it up for parallel computing?</div><div></div><p>2. <span data-olk-copy-source="MessageBody">When I used this command line to run K file, it give an error. But I can run this K file in LS-Run.</span></p><p></p><p>I welcome any feedback here.  Thank you!</p>
Avatar
feng.jiang@northwestern.edu March 31, 2025
Issue with Selective Mass Scaling
<p>Hello All,<br><br>I am trying to perform a dyanmic crash simulation in LSDYNA.<br><br>In the FE Model I have a part with two mesh sizes,<br>Size 1: with 3mm + 1mm(at thin areas) and Size 2: with 1mm mesh. Both are tetra meshed.<br><br>With my current timestep of E-4 the part was having huge mass addition that is why I decided to add the part in the SMS set but when I try to run the simulation,<br>with Size 1: I get out-of-range forces at a location which is far from the part in question.<br>and with Size 2: the simulation does not run at all. It's stuck before calculation go to the transient phase.<br><br>Did anyone face similar issues? Any suggestions are greatly appreciated.<br><br>Thank You.</p>
Avatar
bhuhanptl3@gmail.com March 31, 2025

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