hi, i am using Abaqus standard to model a reinforced beam-column connection subjected to a tip load at the end of the beam. 

i first applied a gravity load followed by a tip load at the end of the beam. halfway through the application of the tip load, abaqus standard

stop and give 2 errors.

1) overstraint at certain nodes of my longitudinal reinforcement

2) negative eigen values

When reading papers about visco-plastic or elasto-viscoplastic simulation, all authors only say that the orientation of grain used in the simulation can be randomly generated, and does not refer to how to generate them. I know the orientation of grain can be expressed by Euler angles (phi1, ph, phi2), but can someone give me advice how to generate euler angles?

Dear All,

How do find the inverse of the rectangular matrix.

The Department of Mechanical Engineering at the University of Colorado
at Boulder invites applications for two full-time positions beginning
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departmental research in biomechanical/biomaterials engineering, energy
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engineering or solid/fluid mechanics. Candidates must have an earned

This workshop is being organized under the auspices of the International Federation for the Promotion of Mechanism and Machine Science (IFToMM).

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Please consult the Call for Papers (attached) for further details.

Massachusetts Institute of Technology



The Department of Mechanical Engineering seeks an outstanding individual for a tenure-track faculty position in Mechanics.  The appointment is expected to be at the assistant professor level; in an exceptional case, a senior faculty appointment may be possible. Faculty duties include teaching at the undergraduate and graduate levels, development of an independent, internationally-recognized research program, and supervision of student research.

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The 2009 ASME Congress starts this weekend.  You can find the schedule of the meetings of all the committees (326KB pdf).  This note lists a few special events. 

Monday, 16 November, 8:00 am to 9:30 am. Plenary Session in Mechanics of Solids, Structures and Fluids

I am interested in the computational crystal plasticity (elastic-viscoplastic models), and I intend to start working in this area. Therefore, I am looking for some review papers--

1- which provide an overview of the state-of-art in this area (a summary of the recognised single crystal plasticity models).

2- about the application of single crystal plasticity using micromechanics based  multiscale FEM for the prediction of texture evolution.

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I will be very thankful if sombody can answer these queries.