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Modeling ring-stiffened hull in Abaqus

Submitted by h.valaei on
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i need your help in working on modeling of my project in Abaqus.

im working on model of an Article.

the field of project is about underwater explosion.

This is the original article:

http://www.sciencedirect.com/science/article/pii/S0167844209000731



first i have to design the model of the article in abaqus.

as you see in article the model is a submarine hull.

There are still a few seats available for the NASGRO - ESACRACK training course organised at ESA-ESTEC, 11-13 September 2012 ...

Submitted by Gerben Sinnema on
The NASGRO® ( www.nasgro.swri.org ) fracture mechanics and fatigue crack growth analysis software is distributed as part of the ESACRACK software for application to fracture control verification of structural hardware used on ESA projects. 

selected papers on fracture in layered materials

Submitted by kilading on

Dear All,

 Currently I am working on the fracture property in layered material and I am focusing on the situation when crack is perpendicular to 

interface. I have read the paper by Dr. Hutchinson and Dr. Suo. If you know any paper that is focusing on the crack perpendicular to the 

interface, please tell me.

 

Thanks and Regards,

 Ding 

Arc length factors in Riks method

Submitted by Staszkinson on
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Hello,

It would be grateful if someone could explain me how to calibrate arc length increment factors in Static, Riks method in Abaqus.

For a default input in Static, Riks step I get max LPF factor equal 147(this value is probably correct, expected 147.8). Unfortunately, I'm not satisfied in number of increments(the result of 12 increments). The question is: how to calibrate arc length increment factors(initial, minimum, maxium arc length increment and estimated total arc length) to get more accurate results.

I found something about it, quote: