Search results for query: *

WHAT IS EIGEN STRAIN HOW TO FIND EIGEN STRAIN? Raj

Dear all. Iam trying to model a Steel open box girder section with a concrete deck slab in NASTRAN. I need to perform Nonlinear analysis for the Box girder. We are aware that Modulus of concrete in P-Delta behavior and M-Phi behaviour are different. From this prespective please let me know what...

To what extent will the refinement by Node movement Help in improving the solution. Any Litreature or reference please suggest thanks in adv raj Raj

In using 4 noded non conforming element forplate bending it is said that it "Locks". How is locking associated with energies. Will adaptive refinement help me inpreventing Locking? Will adpative refinement reduce zero energy modes? In computing the energy of the system should i leave out the...

The next international conference on Computational and experimental engineering and sciences will be held at IIT Madras, India, from December 1-6. All those who are intrested can register and atttend the sessions. More infor available at www.icces.org and also at www.icces-india.org Raj

How can we compute the order of converegence when we have a combined adaptive refinement strategy like r-p, or h-p or r-h thanks in advance regds raj

Hi all, Why are the shape functions for 6 noded triangular element ( Linear strain triangle) written in natural coordinate system. Can any one let me as to where i can find the shape functions for Linear strain triangle in terms of cartesian coordinate systemt thanks and regds raj Raj

Greetings I want to implement an r-refinemnt technique, where can i get information on basis of r- refinement. Raj

Greetings I have a CST 3 noded element(1-4-5) connected on one of its sides to a bilinear 4 noded quadrilateral(1-2-3-4) as shown in figure below. I have the following queeries 1) The DOFS of both elements are same ( 2 DOFS per node) can add the stiffness contributions coming from CST And QUAD...

Greetings How can i compute FE Discretization error using the Variational formulation of governing equaions? How does this change in the context of an residual or recovery type estimator thanks in adv regds Raj

Greetings, Iam trying model a Lap joint with High strength frcition grip bolts in Nastran. My intrest is to get the frictional frces developed between the two plate interfaces. Could any one suggest me as to how i can go about modelling and what element i need to use for the same. The plates are...

Greetings ! I have a Basic querry. 1) Is the potential energy for a given discretized continuum constant? 2) How does the potential energy of the system vary with increase in the number of elements? 3) If there is a variation the what is the value of PE coreesponding to equlibrium? Doe this...

Hello, Iam modelling a overhead water tank. The tank has a bottom ring beam all along the circumfrence . This has to be connected to the base slab. for bottom ring beam i have used beam elements and for base slab i have used shell element.also how do i join the base slab with the cylindrical...

1)How do i get the stiffness matrix of a 3 node one dimensional quadratic element( i have problem in integration).do i have to express the coordinate of interior node in terms of end nodes( non dimensionalize) 2)Can a combination of such elements be assembled to form a bigger one dimensional...

Greetings! We generally get the equlibrium equations for the discretized continuum by minimization of potential.But does this state absolutely repreent optimum discretization. To be more clear, if i have a 3 node line element, i can always get the equlibrium equations from minimization of...

Hi, We have a frame with an inclined leg. This inclined leg rests on a roller support inclined at 30 degrees to horizontal . If this is to be treated as a mulyi pont constraint problem how do we account for the stifnes contribution from roller support taking in to consideration that the lateral...

How do we evaluate the stifness matrix of an inclined cantilever beam element. Does the inclination of the beam affect the performance of the beam element. Does refinemnt of such a beam element would affect the solution?? thanks in adv regds Raj

Hi all, i have a a 3 member frame an open rectangle(like a building frame). In modelling the columns( vertical members) i use beam elements. one intresting thing is that , i can use only one beam element with 2 Dofs pernode( total of 2 nodes per element) to modell this . and thereby i can get...

Hi all, i have a few querries, 1) Do u have a solid element with 3 translational Dofs per node in SAP 2000 2) in case itsn there how do i convert a shell or a plate to equivalent solid. please help me out soon regards raj Raj

I have a fixed beam subjected to concentrated loads to be modelled. whats the effect if i have the following changes made to this fixed beam. 1) provide an internal hinge at midspan 2) provide a hinge or a roller at midspan 3) provide a roller with a torsional spring at mid span. will...