http://www.FEA-Forums.com/ FEA Forums » Forum: FEA Forums - Recent Posts en Sat, 11 Sep 2010 02:57:45 +0000 http://www.FEA-Forums.com/topic/207#post-265 Fri, 10 Sep 2010 00:42:46 +0000 singh3508 265@http://www.FEA-Forums.com/ <p>i have a pipes 3d structure chassis model in solid works. i want to carry out analysis(structural and modal). how may i do that. please elaborate as its totally black box to me. thanx in advance </p> http://www.FEA-Forums.com/topic/206#post-264 Fri, 10 Sep 2010 00:38:20 +0000 singh3508 264@http://www.FEA-Forums.com/ <p>we have to make a chassis model of a formula 1 type of car. its will be<br /> of circular tubes of 1 inch outer dia. and thickness is around 2 mm.its<br /> 3 dimensional network of pipes to impart strength to the car.we want to<br /> carry out stress analysis on it due to load coming on chassis with<br /> weight of car and cornering of a turn(it causes torsional moment in<br /> chassis of a car).there are few question i want to raise</p> <p>1. we have modeled the 3 dimensional chassis as structure of lines in<br /> ansys multiphysics .co ordinates of each point were given and they were<br /> joined by lines and arcs.so chassis as a model of lines is ready. now<br /> what to do to give sectional properties to each element,outer diameter<br /> of all the pipes is same but they vary in thickness.<br /> 2.which type of element will be suitable(as far as i have understood,<br /> beam type element is needed,but i am not sure about beam188/beam189)</p> <p>3.what parameters are required for accurate results, like yield strength<br /> ,poisons ratio., etc.<br /> what kind of material model to choose, and what material properties<br /> to feed in that.<br /> i am hoping for an early reply sir. </p> http://www.FEA-Forums.com/topic/204#post-262 Tue, 07 Sep 2010 01:50:23 +0000 abhishgva 262@http://www.FEA-Forums.com/ <p>Hi guys!Hope someone can help me out with this one:I've been making a relatively simple geometry using DesignModeler. It is essentially a matrix of equally sized rectangles and each rectangle has within it another rectangle. In total there are about 250 to 300 rectangles. All this is in Sketch mode (so in 2D). Contraints like "Coincident", "Equal Length" and "Equal distance" were used to align all the rectangles in an orderly fashion.The problem is that as the number of rectangles increased (reached approximately 200+) the DesignModeler started responding extremely slowly in that, whenever I would change a dimension of a rectangle, or create a new one, it would take upto 2 mins for it to show up. This makes it impossible for me to finish the project (for which I have to modify all 250+ rectangles).At first sight, one may think that my pc has reached its processing limit. But I tried carrying out this project on a pc with 24GB of RAM and 8 intel i7 processors. The problem persisted.It really isn't a problem at the hardware level.Does anyone have a clue??Thanks for reading ! Hope someone can help ! </p> http://www.FEA-Forums.com/topic/203#post-261 Mon, 06 Sep 2010 07:35:26 +0000 elastoplast 261@http://www.FEA-Forums.com/ <p>Hello</p> <p>I want to simulate under ANSYS stretching along an axis of a hollow sphere. For that I model a sphere and inside I glue two small balls on each side. I impose only a displacement along x balls, one in one direction and the other in the other direction. My problem is that the balls pass through the sphere as if it did not exist!<br /> How to solve problem?<br /> Thank you</p> <p>Elastoplast </p> http://www.FEA-Forums.com/topic/201#post-259 Sun, 05 Sep 2010 18:10:17 +0000 Rameshwar Prasad 259@http://www.FEA-Forums.com/ <p>how to assign different properties to a single beam in ANSYS APDL. Beam length is 15m.<br /> 0 to 5M:<br /> AREA:0.75<br /> IZZ:0.0117<br /> HEIGHT:1.0<br /> E=10E6<br /> 5 TO 15M<br /> AREA:0.5<br /> IZZ:0.0117<br /> HEIGHT:1.0<br /> E=30E6 </p> http://www.FEA-Forums.com/topic/200#post-257 Mon, 23 Aug 2010 15:01:50 +0000 eladkatriel 257@http://www.FEA-Forums.com/ <p>Hello,<br /> My name is Elad Katriel and I am a fourth year student for MSC in civil engineering in the Technion - Israel Instute of Technology.<br /> I hope I can help your project and myself at the same time.<br /> During my studies I try to solve a laminate shell problem by defining a new elemnt. That element will include 11 degrees of freedom at each node, and will have 4 nodes at total. The degrees of freedom will be the movments and rotations of diffrent parts of the laminate. Hopefully I will have I admire your work on your program, I wish to knew if I Calculix is open enough to allow that kind of programing better results than I get in usual elements.<br /> Does anyone has any idea which program is open enogh to let me play make those changes? </p> <p>Thank you in advance<br /> Elad Katriel </p> http://www.FEA-Forums.com/topic/199#post-256 Mon, 23 Aug 2010 06:21:58 +0000 karthik1985 256@http://www.FEA-Forums.com/ <p>Dear all,<br /> Ths is a very interesting topic...<br /> Pls explain what element (3D truss) I should use for Euler buckling analysis? how to find out buckling mode shapes of the truss using ANSYS?</p> <p>Explanation:<br /> Launching truss is a long slender steel truss, used in the erection of heavy weight prestressed concrete multi-span bridges over difficult terrain or water, where scaffolding is not feasible at all. While placing prefabricated concrete segments, the steel truss is not only subjected to bending, but also lateral buckling. In my case, 48 meter span of launching truss is used to place the prestressed concrete bridge segment of weight 100 ton.It is required do lateral buckling analysis of the truss. can anyone explain how to do lateral buckling analysis, and how to find out buckling mode shapes of the truss using ANSYS?<br /> I'm using ansys Release 11.0 - Multiphysics.<br /> thanks in advance<br /> <a href="mailto:karthik.civ@gmail.com">karthik.civ@gmail.com</a> </p> http://www.FEA-Forums.com/topic/198#post-255 Mon, 23 Aug 2010 05:04:26 +0000 kebitmat_f 255@http://www.FEA-Forums.com/ <p>Dear,</p> <p>I simulate magnetic field with input current AC and get the result in vector. I want to compare the results with different frequencty. The color of vector depend on the value max and min, but with the different frequencty, the max and min are differnt. That i can't compare. </p> <p>Now, i want to fix the max and min value with all the frequencies, that the max and min now is equal and then i can compare by using the color of each result easily. How to do this?</p> <p>Thanks, </p> http://www.FEA-Forums.com/topic/196#post-253 Wed, 18 Aug 2010 09:17:42 +0000 kmanchanda 253@http://www.FEA-Forums.com/ <p>MSC.Software and ACUSIM Announce Direct Coupling of MD Nastran and AcuSolve for Fluid-Structure Interaction Analysis<br /> Provides Mechanical Engineers Direct Access to Fast and Accurate CFD Solution for FSI</p> <p>SANTA ANA, CA--(Marketwire – August 19th 2010) - MSC.Software, the leader in multidiscipline simulation solutions that accelerate product innovation and ACUSIM Software, Inc. a leading provider of computational fluid dynamics (CFD) solutions and developer of AcuSolve™, today announced the direct coupling of AcuSolve with MD Nastran for world leading Fluid-Structure Interaction (FSI) simulations.</p> <p>Utilizing MSC.Software’s OpenFSI™ Interface, the structural and fluids solutions communicate without third-party software and enable efficient solutions to problems requiring complex fluid-structure interaction modeling.</p> <p>“We are thrilled to support MSC.Software’s OpenFSI Initiative and be the chosen CFD solution for MD Nastran’s new FSI capability," said Dr. Farzin Shakib, founder and CEO of ACUSIM software. "Through this partnership, our mutual customers will now be able to benefit from this directly coupled FSI solution, and the added capabilities with MD Nastran, to more efficiently solve a wide variety of problems that were previously not possible."</p> <p>“Coupling with a leading CFD solver such as ACUSIM’s AcuSolve adds advanced fluid-structure interaction capabilities to the existing coupled physics capabilities in MD Nastran,” said Sanjay Choudhry, VP Product &amp; Release Management at MSC.Software. “As a result, FSI problems in Aerospace, Automotive, Energy, Biomedical and other industries can now be solved as a coherent model, where the fluid dynamics and structural dynamics interact in concert allowing force-displacement data communication at each time step for true coupling.”</p> <p>An integrated simulation system with a broad set of multidiscipline analysis capabilities, MD Nastran enables product manufacturers to simulate everything from a single part to complex assemblies. MSC.Software’s OpenFSI Interface enables coupling of MD Nastran with CFD solvers or other external services that implement the published APIs. Applications like automotive door seal aspiration, shock absorbers, flexible aircraft wings, aeroelasticity, wind turbines and heart valves benefit from reliable FSI simulations.<br /> . </p> <p>As the leader in FSI technology and the most established FSI solution provider in the CFD market space, ACUSIM is the first company to offer direct coupled FSI technology and solutions, enabling the most accurate and robust results, and best-in-class solution for solving complex multidisciplinary design problems involving coupled fluid flow and structure phenomena. AcuSolve, the company’s general-purpose, finite element-based CFD solver, is a premier brand in the CFD market and highly differentiated by its robustness, fast speed and accuracy.</p> <p>AcuSolve provides two powerful capabilities for simulating Fluid-Structure Interaction and response to fluid forces, implemented with MD Nastran:</p> <p>• Practical FSI (P-FSI): predicts linear solid/structural responses.<br /> • Direct-coupled FSI (DC-FSI): predicts large deformation and non-linear solid/structural responses.</p> <p>MSC.Software and ACUSIM will be demonstrating AcuSolve’s direct coupling with MD Nastran during the upcoming webinar, “MD Nastran and AcuSolve coupling in SimXpert 2010 for industry leading FSI Simulations,” scheduled for August 31 at 10:30 a.m. PDT and 5:30 p.m. PDT. To register for the free webinar, please visit: <a href="http://pages.mscsoftware.com/OpenFSIinMDNastran.html" rel="nofollow">http://pages.mscsoftware.com/OpenFSIinMDNastran.html</a></p> <p>About ACUSIM Software, Inc.<br /> ACUSIM Software is a leading provider of advanced and powerful computational fluid dynamics (CFD) solver solutions. AcuSolve™ is a general-purpose, finite element based flow solver that is highly differentiated by its robustness, fast speed and accuracy. It can be used by engineers and scientists at all levels of expertise, either on a standalone basis or seamlessly integrated into existing engineering and scientific applications. AcuSolve is used globally in a wide variety of industries such as automotive, electronics, chemical, bio-medical, consumer products and energy, as well as at national labs and universities.</p> <p>Headquartered in Mountain View, Calif., ACUSIM Software markets its flagship product, AcuSolve™, and its associated pre-processor, AcuConsole™, post-processor, AcuFieldView™, and desktop solution, AcuDesktop™ globally. Visit <a href="http://www.acusim.com" rel="nofollow">http://www.acusim.com</a> for more information.</p> <p>About MSC.Software<br /> MSC.Software is a global leader of multidiscipline simulation solutions that help companies improve quality, save time and reduce costs associated with designing and testing manufactured products. MSC.Software works with thousands of companies worldwide to develop better products faster with simulation technology, software, and services. MSC.Software employs 1,000 people in 20 countries. For additional information about MSC.Software’s products and services, please visit <a href="http://www.mscsoftware.com" rel="nofollow">http://www.mscsoftware.com</a>. </p> <p>The MSC.Software corporate logo, Simulating Reality, Adams, Dytran, Easy5, Marc, MD Adams, MD Nastran, Patran, Mentat, MSC, MSC.Masterkey, MSC Nastran, MSC Fatigue, Mvision, SimDesigner, SimManager, OpenFSI, and SimXpert are trademarks or registered trademarks of the MSC.Software Corporation in the United States and/or other countries. NASTRAN is a registered trademark of NASA. All other trademarks belong to their respective owners.</p> <p>Press Contact<br /> Leslie Rickey<br /> Director, Product Marketing, MSC.Software<br /> <a href="mailto:leslie.rickey@mscsoftware.com">leslie.rickey@mscsoftware.com</a></p> <p>Shing Pan<br /> VP Marketing, ACUSIM Software, Inc.<br /> E-mail: <a href="mailto:shing@acusim.com">shing@acusim.com</a><br /> Telephone: (650) 743-3813</p> <p><a href="http://pages.mscsoftware.com/OpenFSIinMDNastran.html" rel="nofollow">http://pages.mscsoftware.com/OpenFSIinMDNastran.html</a> </p> http://www.FEA-Forums.com/topic/192#post-249 Sat, 14 Aug 2010 00:54:53 +0000 kulibyaka 249@http://www.FEA-Forums.com/ <p>Consult please on a following question. It is necessary in Ansys to solve electrodynamics problem. The problem description (2D statement): is available opened yoke (for it magnetic permeability was set only, it was described by element PLANE13) with the coil (for the coil which was described by element PLANE53 and CIRCU124 magnetic permeability and specific resistance of a material was set). The constant magnet (for a magnet magnetic permeability and coercive force was set) is brought In a air gap of the yoke during some time interval (from 0 till 0.04 s). It is necessary to define as voltage and a current in the coil changes in due course. Has actually rested against a problem of the task of the movement of a magnet. How it to simulate? Tried to break all interval of time into some steps and on each step connected degree of freedom AZ for corresponding pair of knots (command CP), however at calculation the error took off. If somebody knows as to simulate movement in electrodynamics problem in Ansys, the huge request to impart experience. Thanks! Excuse for my English, I from Russia. </p> http://www.FEA-Forums.com/topic/190#post-247 Fri, 23 Jul 2010 05:28:02 +0000 manjunath 247@http://www.FEA-Forums.com/ <p>I want to model a 2D and 3D crack propagation problem in ANSYS for fatigue loading and test the same model for impact load by LSDYNA and please suggest me tutorials on this so that I can get some knowledge on modelling</p> <p> Thank you </p> http://www.FEA-Forums.com/topic/189#post-245 Fri, 09 Jul 2010 00:32:02 +0000 mirhadizadeh 245@http://www.FEA-Forums.com/ <p>Dear Sir/Madam<br /> I was wondering if you can help me to use Rotordynamic Analysis tutorials for ansys ,animation format, examples or any other formats.<br /> shaft(1000rpm) 2bearings and load </p> <p>Kind Regards</p> <p>ALI </p> http://www.FEA-Forums.com/topic/181#post-235 Wed, 16 Jun 2010 06:51:53 +0000 Auto-design-online 235@http://www.FEA-Forums.com/ <p>Auto-Design-Online is a cutting-edge online training institute for the<br /> various CAD-CAE software. Institute was established with the aim to reach<br /> out to every single engineer passionate about automotive design, across<br /> the world through internet.</p> <p>ANSYS new batch is starting from July 2010- Interested?? please contact us <a href="mailto:info@auto-design-online.com">info@auto-design-online.com</a></p> <p>Our experts have studied and worked for several years in Germany - known<br /> as inventor of automobiles. Our core team has worked very closely with<br /> various well known OEM's like Audi, BMW, MAN, Nissan, VW to name a few. By<br /> sharing this knowledge of past decade 'Auto-Design-Online' enables Indian<br /> talent to be more competitive then rest of the world.</p> <p>Hardware/Software/Connectivity Requirements at the participants end:</p> <p> * IE6+ or Firefox 3+ with Adobe flash player 10+</p> <p> * 512kbps broadband connection minimum<br /> * Headphone and mike set- for communication</p> <p>Courses:</p> <p>CAE: Hypermesh, ANSA, Abaqus, MSC-Nastran/Partran, Ansys, PAM-CRASH,<br /> OptiStruct, Radioss</p> <p>CAD: Catia V5</p> <p>We would be very happy to hear from you. </p> <p>With Regards<br /> Auto-Design-Online Team</p> <p>Web: <a href="http://www.auto-design-online.com" rel="nofollow">http://www.auto-design-online.com</a><br /> email:info@auto-design-online.com </p> http://www.FEA-Forums.com/topic/179#post-230 Tue, 08 Jun 2010 08:19:47 +0000 sanjay_d 230@http://www.FEA-Forums.com/ <p>i have a ring of outer dia 700 units and inner dia 500 unit of thickness 150 units. this rings are at a distance of 500 units. the lower or base ring is fixed. in between the base ring and top ring it is connected by springs (8 to 10 nos). a pressure is applied to the top surface of the top ring.</p> <p>the problems i face:<br /> 1. if the depth is z direction. i get displacement of the ring in xy axis(why?) and z axis<br /> 2. if one of the spring has a gap of 1 unit. i get even displacement in the spring(why?)<br /> 3. i used combin40 element for spring to give gap. where is the gap placed in the spring?<br /> 4. is there any thing else i can used to give gap in the spring in between two rings?</p> <p>D.Sanjay ,<br /> Project offcier,<br /> IIT Madras. </p> http://www.FEA-Forums.com/topic/175#post-221 Wed, 26 May 2010 17:36:03 +0000 avaidya2 221@http://www.FEA-Forums.com/ <p>Hello All,<br /> I need to do the following in LS DYNA. I am trying to simulate a ballistic test. In the actual ballistic test, a long roll of fiber is pre-stressed by about 5.5 lb force along its longer length and then wrapped multiple times on a ring. I have a similar model in LS DYNA in which I have the fabric wrapped around the ring. I have modeled the ring with solid elements and the fabric with shell elements. I have to apply prestress to the fabric now. The problem I am facing is that if I use the *INITIAL_STRESS_SHELL , I can apply stresses in only global x,y,z and shears. As the fabric is curved around the ring, the global x,y,z make no sense. How can I apply the prestress.</p> <p>Thanks in advance for the help.</p> <p>Please contact me at <a href="mailto:avaidya2@asu.edu">avaidya2@asu.edu</a>. I can provide more details. </p> http://www.FEA-Forums.com/topic/173#post-219 Wed, 19 May 2010 21:34:35 +0000 ramesh 219@http://www.FEA-Forums.com/ <p>What is the unit of density given in ansys if E is given in N/mm2 and the model is imported from pro-e modelled with mm units. </p> http://www.FEA-Forums.com/topic/171#post-217 Thu, 13 May 2010 12:58:19 +0000 majuz 217@http://www.FEA-Forums.com/ <p>Hi,<br /> I am trying to simulate a design for a microrobotic leg that is electrically actuated.<br /> A composition with a PZT layer is electrically excited and hence a moment is created that bends the beam and makes it shrink a tiny bit in it self.<br /> For a cantilever design the simulation works perfect. </p> <p>The problem is the following...<br /> Some of my designs will be able to carry alot more weight when they are deflected (Voltage applied) before the force is applied.<br /> The designs are actually not strong when the defelction is 0.<br /> In the nonlinear simulation both the voltage and the force are ramped up in equal proportions. This causes the simulation to predict to low or even negative deflection even though the force should easily be carried by the setup if defelected before.</p> <p>I tried the upcoord command and it worked for a very simple setup.<br /> Ansys freezes though when I use the command for my design even though the mesh is very rough.<br /> Same problem for the upgeom command.</p> <p>Do you have any idea how I could apply the voltage before the force?</p> <p>It would be amazing if somoene could help me. </p> http://www.FEA-Forums.com/topic/169#post-214 Mon, 03 May 2010 22:16:55 +0000 gnana 214@http://www.FEA-Forums.com/ <p>the output unit completely depends upon the unit of input value. you should use the value with correct unit for getting the correct result</p> <p>your youngs modulus should be N/mm2 and density should be kg/mm3 for obtaining displacement in mm </p> http://www.FEA-Forums.com/topic/169#post-213 Sat, 01 May 2010 10:28:12 +0000 rizwan 213@http://www.FEA-Forums.com/ <p>Hey,<br /> I am using Ansys 11.0 doing my thesis, i did modal analysis to extract eignvalue and i got 10 Mode shapes, i uused steel with parameter density ton/mm3 and yang's modulus in Mpa. I got reuslt freq, in Hz and maximum displacment and different nodes. I want to know the units of maximum displacement? i think it should be mm? </p> <p>Please reply me, here or on my e-mail id <a href="mailto:syedrizwanulhaq@hotmail.com">syedrizwanulhaq@hotmail.com</a> </p> http://www.FEA-Forums.com/topic/168#post-212 Wed, 28 Apr 2010 07:15:59 +0000 galix 212@http://www.FEA-Forums.com/ <p>Hi,</p> <p>I have got an analysis to carry out and I wonder if the analysis I wanted to do is the good one. I define material, then I mesh, I control the quality of the mesh, then I add boundary conditions, I solve and to finish I analyze the convergence. Is that right?<br /> I also wonder if I have got a parametric model, must I analyze convergence for every model?<br /> If you have documents related to this it will be very useful for me.</p> <p>Thank you </p> http://www.FEA-Forums.com/topic/167#post-211 Mon, 26 Apr 2010 08:52:59 +0000 Aeromaniac 211@http://www.FEA-Forums.com/ <p>Hi,</p> <p>I have a structure that is flown on an aircraft and therfore experiences vibration. We have acceleration measurements along its length and a FE model of the structure in ANSYS. Our acceleration measurements are not made at the base of the structure but at locations along it's length. We want to perform a random vibration anlaysis of the structure but ANSYS only seems to allow you to specify acceleration PSDs at the base. The manual does say that you can specifiy loading at non grounded nodes but this is in terms of force and I don't have this information. Does anyone know how to do this? I have multiple acceleration PSDs along the length of the structure which make up the input loading. Is there a method of running the modal analysis part first then running a subcase with the acceleration input?</p> <p>Hope you can help</p> <p>Many thanks</p> <p>E </p> http://www.FEA-Forums.com/topic/157#post-209 Sat, 24 Apr 2010 00:46:30 +0000 gnana 209@http://www.FEA-Forums.com/ <p>if you want to give the rotational speed, you could use the command 'omega' in ansys</p> <p>hope it helps</p> <p>gnana </p> http://www.FEA-Forums.com/topic/160#post-208 Sat, 24 Apr 2010 00:45:14 +0000 gnana 208@http://www.FEA-Forums.com/ <p>the minimum condition for obtaining mapped mesh would be: the area should enclosed by only four lines</p> <p>hope it helps</p> <p>gnana </p> http://www.FEA-Forums.com/topic/165#post-207 Sat, 24 Apr 2010 00:42:28 +0000 gnana 207@http://www.FEA-Forums.com/ <p>for meshing line - use 'lmesh'</p> <p>for selecting the node in the particular line - use'nsll'</p> <p>for applying loads on the nodes - use'f'</p> <p>you could see the description of the command in the ansys manual</p> <p>hope it helps</p> <p>Gnana </p> http://www.FEA-Forums.com/topic/165#post-206 Sat, 17 Apr 2010 01:03:16 +0000 christy 206@http://www.FEA-Forums.com/ <p>Hi all,</p> <p>I'm a beginner in FEA and got a problem regarding nodes. Can you split a line into a number of nodes using APDL script? Then a force should be applied as these nodes using F. The line is and arc.</p> <p>Thanks in advance<br /> Chri </p> http://www.FEA-Forums.com/topic/164#post-205 Wed, 07 Apr 2010 20:02:24 +0000 willyporto 205@http://www.FEA-Forums.com/ <p>Hello, I am new and taking and introductory course. Can someone tell me if</p> <p>Are linear elements and linear response related?</p> <p>or the difference between linear elements and linear response.</p> <p>Thank you!! </p> http://www.FEA-Forums.com/topic/160#post-189 Fri, 26 Mar 2010 07:08:56 +0000 leslie.lp2003 189@http://www.FEA-Forums.com/ <p>Hi,<br /> I'm a student who's doing a project on strains n stresses due to thermal gradients in an antenna reflector. I'm very new to the software n know only the basics of FEA. I've managed to make a CAD model of the reflector but finding it difficult to carry out mapped meshing. I wud greatly appreciate if some one could guide me to mesh the reflector.<br /> Thank you<br /> Leslie </p> http://www.FEA-Forums.com/topic/157#post-186 Wed, 24 Mar 2010 15:51:53 +0000 maximus 186@http://www.FEA-Forums.com/ <p>hey can anyone tell me how to apply centrifugal force (F= mrw²)in case of disk rotating about its axis?? or how to do stress analysis of Rotating disk which is rotating about its axis with angular speed w?? </p> http://www.FEA-Forums.com/topic/155#post-185 Wed, 17 Mar 2010 06:32:53 +0000 park 185@http://www.FEA-Forums.com/ <p>Is forum is ON!! </p> http://www.FEA-Forums.com/topic/155#post-183 Mon, 15 Mar 2010 04:34:30 +0000 park 183@http://www.FEA-Forums.com/ <p>Hi all,</p> <p>I am doing a project for my master degree using ansys. </p> <p>I created the model in CAD software. When I take that model to workbench, it shows some 20 contacts in the model. Where actually the contacts may not be needed in that place,((i.e)actually these parts are welded together as a whole body in the practical applications, so do I need to have bonded contacts in the model(at welded locations) or can I merge into a single solid for the structural analysis))</p> <p>Will the results differ for both types of structural analysis. </p> <p>Put Simply, do we need to impose contacts in the place of steel weldings in structural parts?. </p> <p>Please share your information, and the time you spend is highly appreciated. </p> <p>thanks in advance.</p> <p>regards<br /> Park </p>