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<p>Hello friends,</p><p>I modeled a postensioned concrete column where I used hollow solid part to represent prestressing sheat/duct and I also used a T-shell element to create the same. For prestressing strand I used a beam/cable material then I applied beam in solid penalty contraint and also tried different contact types like autmatic surface to surface, single surface, and beam to surface. However, I could not prevent the penetration of cable through the duct wall when the column is loaded in lateral direction. At the same when I am looking at the contact between cable and column or duct and column it seems working because when both come in contact with the column they move and not penetrate into each other. Please give me your feedback how to make this contact between cable and hollow solid part.</p><p>Thanks</p>
<p>Hello, </p><p>I recently started using LS-Dyna. In AnsysMechanical, I used to define boundary conditions in terms of displacement fields. Apparently, I cannot do the same thing in LS-dyna. It seems that the displacement command is ignored. </p><p>Nevertheless, I can define other boundary conditions in terms of initial velocity and load. But as I want to study the buckling problem in structure, load conditions can lead to non-stable solution.</p><p>I suppose I missed something, does anyone have a solution? Thank you !</p><p>The picture below is from a ball compression test. The lower support is fixed, while the displacement command is defined for the upper one.</p><p></p>
<p>Hello,</p><p>I am trying to create a hole along the height of a concrete column with square cross section. I tried to use part trim option using curve line but it is only executable for shell element. Is there a way to delete solid elements and create circular shaft type hole in the column?</p><p>Thanks</p>
<p>For some reason, I re-downloaded the student version, but it seems to have an import error.</p><p>I selected "Import STL file," but it showed as STEP. Selecting OBJ showed STL, and so on for other options.</p><p>However, when I switched back from STEP to STL, I still couldn't import the STL file.</p><p>How can I fix now? and is there another way to import the file?</p><p>I selected keyword -> include, but I still can't read the file.<br><br>Please help me!! <br>Thank in advance!</p>
<p>Hello friends,</p><p>I modeled a postensioned concrete column where I used hollow solid part to represent prestressing sheat/duct and I also used a T-shell element to create the same. For prestressing strand I used a beam/cable material then I applied beam in solid penalty contraint and also tried different contact types like autmatic surface to surface, single surface, and beam to surface. However, I could not prevent the penetration of cable through the duct wall when the column is loaded in lateral direction. At the same when I am looking at the contact between cable and column or duct and column it seems working because when both come in contact with the column they move and not penetrate into each other. Please give me your feedback how to make this contact between cable and hollow solid part.</p><p>Thanks</p>
<p>Hello, </p><p>I recently started using LS-Dyna. In AnsysMechanical, I used to define boundary conditions in terms of displacement fields. Apparently, I cannot do the same thing in LS-dyna. It seems that the displacement command is ignored. </p><p>Nevertheless, I can define other boundary conditions in terms of initial velocity and load. But as I want to study the buckling problem in structure, load conditions can lead to non-stable solution.</p><p>I suppose I missed something, does anyone have a solution? Thank you !</p><p>The picture below is from a ball compression test. The lower support is fixed, while the displacement command is defined for the upper one.</p><p></p>
<p>Hello,</p><p>I am trying to create a hole along the height of a concrete column with square cross section. I tried to use part trim option using curve line but it is only executable for shell element. Is there a way to delete solid elements and create circular shaft type hole in the column?</p><p>Thanks</p>
<p>For some reason, I re-downloaded the student version, but it seems to have an import error.</p><p>I selected "Import STL file," but it showed as STEP. Selecting OBJ showed STL, and so on for other options.</p><p>However, when I switched back from STEP to STL, I still couldn't import the STL file.</p><p>How can I fix now? and is there another way to import the file?</p><p>I selected keyword -> include, but I still can't read the file.<br><br>Please help me!! <br>Thank in advance!</p>
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