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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) 

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