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First-order reliability method (FORM) for Matlab?

Submitted by edub on
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Hello,

I am wondering if there is a source code for first-order reliability method (FORM) or second-order (SORM) available out there, ideally for Matlab but others would be interesting as well.

If not, has anyone programmed this themself?  What literature source did you base it upon?

Thanks in advance for any help!

Wrong pore pressure and effective stress state in ABAQUS

Submitted by Valdemar9000 on

Hey.

I want to model an anchored sheet pile wall placed in a completly saturated clay material, where

the excavation steps on the left side of the wall have to be taken into account.

I am using the keyword in ABAQUS "*Model change, Remove" to remove my elements, so I can

simulate the excavation steps. Unfortunately, my pore pressures seem stranges in the

model when I am using this keyword.

Simulation using Abaqus

Submitted by Heera on
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Dear Friend,

I am doing my PhD and my topic includes Simulation of Orthogonal Cutting Process in Abaqus. I am very new to Abaqus. May i request you to please send me some helping tutorials/files for the same. I shall be highly obliged.

Regards

Heera

E-mail:   mymailto2003 [at] yahoo.com (mymailto2003[at]yahoo[dot]com)

Why different between Solid5 and C3D8?

Submitted by frdw on

Has anyone compared the results of Ansys solid5 element and Abaqus c3d8 element? I tried a very simple example with



exactly same conditions for both elements but got very different displacement results. I put both input files here,



can anyone help me check whether there is something wrong? Thanks.



Ansys Input:



/prep7

et,2,solid5,2,,1

mp,ex,2,2.1e11

mp,prxy,2,0.3

K, ,0,0,0, 

K, ,16e-4,0,0,

K, ,16e-4,3.2e-4,0,

K, ,0,3.2e-4,0,  

Flexible Linear Shaped Charge Modeling

Submitted by bdmmech on

Hi !!! all

I am doing the Hydrocode simulation using AUTODYN 2D Explicit Hydrodynamic Code. There is apoint of doubt in simulation of a 2D problem regarding the location of Detonation inside the explosive. In the case of a conical shaped charge it is very easy to assume the detonation at the apex of the cone but in case of FLSC being a linear cord and the initiation is done axially, it is very difficult to assume the same condition as that of conical shaped charge.

Please give me some useful solution.