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nonlinear buckling of plates

Submitted by paigeri on

hi all,

   thanks lot, actually how to solve nonlinear buckling analysis?

1.what is the adavantage of nonlinear analysis,will u get new critical load or same value of linear buckling load?

2.one of the imechanica member suggested the follwing code,i done using tha t code but what ever im giving time value same value getting after converging my solution.

ansys

Submitted by paigeri on

hi all,

      im doing m.tech structures,i ve doubt abt nonlinear buckling of perforated plate subjected to uniform compresssion load.i diddn't get exact buckling load load in nonlinear analysis,my problem is how to load vs displacement curve.plz help me.

            thank u

What is the Difference betweeen Stress and Pressure?

Submitted by erpankajgulati on

 

Stress is the property of the body under loads. It is defined as a sort of reaction produced by the molecules of the body under some action which tends to produce some deformation. this intensity of these additional forces produced per unit area is known as stress.

 

 

Pressure is defined as force per unit area applied to an object in a direction perpendicular to the surface.

 

 

Is it fine?

IPEBS

Submitted by Anonymous (not verified) on

Hi,

I am intrested in Process piping design and saw an institude in India  called IPEBS based in HYDERABAD  that offers such courses. I would like to know if this institude is a good one. Other recomendations are welcome.

Thanks for your information.

Ethan

ABAQUS model for special joint element and spring element

Submitted by jordan2 on

Very urgent two enquires:

1. How to model rotational spring element in order to define a curve
like M=k*(theta) where theta is the rotaional angle? It seems that
abaqus could only provide F=kx model.

 

2. there is a dashpot connector element which behaves like F=C * V
(where C is a constant), can I ask how to model F=C*(dv/dt)=C*a(where a
is the derivative of change of velocity)?

Thanks.

simulation of compact tension tests

Submitted by adewole kazeem… on
Choose a channel featured in the header of iMechanica

I am a student and I need to simulate compact tension test so as to obtain the fracture toughness using ABAQUS. I would have to compare the fracture toughness value from ABAQUS with values obtained from experiment.

I have been trying to model the compact tension test for weeks without sucess. Can anyone give me the step by step description of how to model the compact tension test

Thank you