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I am working on friction stir welding process in that i have to move tool shape heat source in plate to find out temperature distribution in plate . I have make circular shape heat source on the surface of the plate but i want to make cylindrical shape pin as a heat source in that. presenyly i am using dflux subroutine pls help me

HI,

i am a mechanical engineer in the domain of machine design  i use solid works (mainly) and catia  as CAD and i am learning solidworks simulation but as i browsed the net i found that no one recommends it but they do recommend ANSYS , ABAQUS ,OR COMSOL 

my line of work is the design and optimization of machines (assemblies) and machine elements (parts), so i need to know if SW simulation is enough in this domain or should i switch to one of the mentioned softwares

and should i choose one what is the one that do the job as is less complex

Hello Experts,

I have written a Uel subroutine and trying to implement on a plate constrained at all the edges. 

My UEL Subroutine executes without any errors when the total number of elements are just 15 to 20. But when I increase the number of elements and mesh it more fine, My Uel subroutine aborts with ERROR Code 5.

If I print the JELEM, UEL Subroutine is aborting always at 52th Element, i.e when JELEM=52. Even when I remesh the structure with different size, Uel subroutine consistantly aborts for the 52ed element.

Hello Everyone..

As per my knowledge for most of the numerical simulation is assumes 2D orthogonal cutting.  But, I am doubt about Single point diamond Cutting. can we consider it orthogonal cutting....??

because the tool is in crystalline structure. ??

any body please... can clearify my doubt...??

i am trying to do wear analysis of coatings like UHMWPE,PTFE which are used in bearings and human implants. is there any possibility of getting the damage parameters for the above said materials. If not, is it possible to do experiments to find the same

Hello dear all

I'm Soheil Marandy and I work on meshfree methods. I have analysis the free vibration of a thin plate using element free Galerkin method but I have seen that using different field nodes in the element free galerkin method provide different mode shapes.

I would be appreciated If I could have your points on this isssue.

Warm regards,

Soheil 

Hello Everyone,

I am very new in Abaqus. I want to learn abaqus as well do some
simulation of machining (Orthogonal/oblique). So I am looking for a
tutorial.

I present in this note a finite difference method and Scilab computer programs to
numerically solve the Saint-Venant theory for torsion of prismatic beams (shafts, bars) of
piecewise rectangular cross section. The purpose of this note is mostly educational, for I
believe that it is quite instructive to not only solve these problems analytically whenever
possible but also explore solutions numerically of common configurations for which one
cannot readily obtain analytical solutions. The same kind of problems occur in heat transfer,

Hi all,

I am looking for ANSYS-LSDYNA tutorials. If anybody has, I request him/her to kindly share or post the links.

Thanking you,

With best regards,

- Ramadas

Hi All,

I am very new to FEM process and ANSYS as well. 

I am trying to do a plane strain problem (2D) in ANSYS. 

My problem is  I dont know how to model primitives like sphere, cube, cylinder etc for 2D plane strain problem.

Like say can i model circle of 20mm radius for modeling sphere of 20mm radius???

Or can i model square of 50mm length for cube of 50mm.

May sound very dumb, but this is my geniune problem 

Thankyou for your time and help (in advance) 

Amit  

国内高速公路和城市高架大量采用独柱墩设计，近年已发生多起倾覆坍塌事故。以笔者来看，设计规范需要改进，特别在倾覆核算的要求和引导上更全面并提高安全系数，设计不够严谨是另一原因。

从结构力学来看，两个问题：

1.许多的独柱墩设计为何不加盖梁？仅为美观（相对成本应较小）？如加盖梁发生的几起倾覆坍塌事故应该都可避免，全国范围天文数字的高速公路和城市高架加固改造资金可大量节省。。。。

2. 独柱墩（特别是单支点）的抗震性是如何考虑的，比如在京津唐地震带。。。。

hi,
I made a model for concrete beam , and apply the load as load steps, and
then I made static non-linear analysis , but.....how con i define the
critical or the ultimate load that the concrete beam can stand before
collapse and how can I now the results for each load step? how can I
draw the (load - deflection)curve for the beam???
thanks.

Hi,

Do anyone know how to introduce ovality into a circular model in ansys.

Thanks

      i am a student of 4th year mechanical engineering.

     i working on  project of fracture mechanics. in this project we consider flat square plate with a central hole having specified dimenstion and material. initially we assume symmetric crack around a hole. i want to find out crack growth under different tensile load condition and using this i want to find out stress intensity factor and  when it reaches to cataschrophic failure. plz give ans as soon as possible