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buckling

Design of Storage Tank( including Cone roof structure analysis)

Submitted by jsn1411 on
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education
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buckling
FEA
FEM
structural design
thin shell
membrane theory

Namaste from India.Jay Naik here. I am Post graduation Student doing Specialization in Machine Design.I am Doing My project in Master in area of" Design of storage tank" in One of the reputed company in Static Equipment Design.Any Idea on which Software(Fea or failure analysis) Design of storage tank is carried out?I have heard about AMETank and Ansys.

Secondly i am carrying out Literature review Present days.reading API 650 and other standards.Suggestion requires in this area.

Please guide me in proper manner.in which way i should carry out the project in systematic way.

Effect of material nonlinearity on spatial buckling of nanorods and nanotubes

Submitted by Ajeet Kumar on
research
cauchy-born rule
elastic rods
surface stress
buckling

You may be interested in reading our following article: http://link.springer.com/article/10.1007/s10659-016-9586-1. We show the importance of incorporating material nonlinearity for accurate simulation of nanorods and nanotubes. The linear material laws are shown to give completely erroneous results. The nonlinear material laws for nanorods were obtained using the recently proposed "Helical Cauchy-Born rule". We also discuss how surface stress affects buckling in such nanostructures.

Is it possible to solve buckling in Abaqus with only residual stress defined as predefined load?

Submitted by frobles on
software
ABAQUS
buckling
residual stress

Hi Sirs,

As title, I wondering if the problem can be solved with only material residual stress but no other external load applied?

After several trials, Abaqus returns message
"MASS OR DIFFERENTIAL STIFFNESS MATRIX IS COMPLETELY NULL. THE EIGENPROBLEM CANNOT BE SOLVED. IN A *BUCKLE ANALYSIS THE MOST LIKELY CAUSE IS THAT A NONZERO LOADING PATTERN WAS NOT SPECIFIED VIA *BOUNDARY, *CLOAD, *DLOAD, ETC,. SEE Eigenvalue Buckling Prediction IN THE ABAQUS/STANDARD USERS MANUAL"

Call for Abstract: 2016 EMI International Conference - MS11: Instabilities and Bifurcations in Solids, Structures and Soft Materials

Submitted by Fan Xu on
conference
buckling
pattern formation
multi-scale
solid mechanics
computational mechanics

Dear Colleagues,

You are cordially invited to submit your 1 page abstract to our Mini-Symposium (MS11) "Instabilities and Bifurcations in Solids, Structures and Soft Materials" in 2016 EMI International Conference – Engineering Mechanics Institute Conference of ASCE.

The injection of an elastic rod

Submitted by Davide Bigoni on
research
buckling
elastica
force reversal
configurational force

What should be expected when an elastic rod is forced to slip inside a sliding sleeve and against an obstacle?

After buckling, configurational forces play a strong role, so that a force reversal is observed!

Enjoy the injection of an elastic rod at http://www.ing.unitn.it/~bigoni/injection.html

Lateral torsional buckling of I beams with restraint

Submitted by Vanadium on
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Lateral torsional
buckling
steel
i
beams
restraint
FEM
FEA
ABAQUS

I am looking to model buckling of I steel beams with restraint in abaqus. But I do not know how to make rigid connections between the steel members. 

 

Why is the other beam( beam with fixed supports) not stressed? How do i define contact between the two beams.

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