I'm trying to determine the coorelation of a blade natural frequency and disk (nodal diameter) natural frequency on a Turbine wheel in ANSYS Modal analysis. Is it possible for a blade natual frequency to be excited even though a disk natural frequency is not being excited?? I'm having trouble determining if a blade frequency is related to any disk nodal diameter. Thanks for any incite on this subject.
Closed!!!
Two positions for guest researchers(post-doc) at NIST on biomechanics
Email: martin.chiang [at] nist.gov (martin[dot]chiang[at]nist[dot]gov)
Homepage: http://www.nist.gov/msel/polymers/biomaterials/martin_chiang.cfm
Research area: Biomechanics
I have had some time to write down an informal introduction to Moving Least Squares, from my coding perspective. It is supposed to be a condensation of experiences after some years of using it, although it does not contain any new theoretical aspect.
Dear,
I would like to
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MicrosoftInternetExplorer4
Dear everyone
If we considerer a 3D fracture stress and strain field as a combination of numerous 2D fields in thickness direction, the J integral at each 2D plane can be obtained according to Rice’s definition (Abaqus and Ansys also include this function). What I concerned is the ratio of J integral at the surface of SEB or CT specimen to that at the mid-plane of the specimen. What factors have influence on the ratio? How to find the quantitive relationship between the factors and the ratio in linear elastic model?
Worth reading
http://www.dpmms.cam.ac.uk/~wtg10/continuity.html
in case you need to explain the epsilon-delta definition of continuity to an engineering student.
-- Biswajit
The Department of Mechanical Engineering at the Universitat Rovira i Virgili (URV) (www.urv.cat) in Tarragona (Spain), is looking for several enthusiastic research students with a strong interest in fluid dynamics. Successful candidates will join a small but very active multidisciplinary team, working in fluid-structure interaction problems. The research will be mainly experimental and focused in the area of fluid structure interaction with application to several engineering problems.
Hi,
I am trying to model a reinforced concrete element in Abaqus. I have been running a couple of models for a few weeks. Recently, I tried to validate an new experiment but ran into this error, "The Plastic Strain At First Yield Should Be Set To Zero". For my steel material model, i used elastic = 29520ksi and for the plastic, i keyed in the yield stress followed by the plastic strain. At the first input, plastic strain is zero for the initial yield stress.
I would like to know why ABAQUS is the dominant FEM program (in terms of comments) in this forum? Why do you consider ABAQUS over ANSYS?
I have been using ANSYS for at least 8 years and I am very please with the capabilities of it. But I have not seen ABAQUS or used it. Beside, reading all the comments that are posted in imechanica, I feel like I am using the wrong FEM program.
Which are the advantage of ABAQUS over ANSYS?
Thank you,
Mario J . Juha
