Dear All

I am modeling a workpiece supported in fixtures and being machined. I use the FEM ( Ansys) to simulate this set up. I need to know at the stiffness of wp at the wp-fixture contact point  . Stiffness is found by applying unit force at one contact point while fixing all others.. Inverse of displaceemnt gives the stiffness in that direction. I have two questions reg this.

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Please, see the document attached for a detailed description of the program, host institutions and participating faculties.

Hi everyone,



In order to simulate nonlocal damage in trabecular bone structures in
ABAQUS, I need to implement the constitutive laws into the user element
subroutine (UEL), since it is not possible to implement nonlocal FE in
UMAT, as far as I know!



I would be very much grateful if someone, who has experience in this
regard, esp how to implement 3D elements, e.g. C3D8, into a UEL code,
shares some knowledge.



Best,



Hadi

Subra Suresh, the Dean of Engineering, of the Massachusetts Institute of Technology, is in line to become the next Director of the National Science Foundation (NSF), according to this post at Science.

The NSF director must be confirmed by the Senate, although it would be unusual for a nominee to attract any opposition.

I am looking for the value of Bulk viscosity and shear viscosity of PMMA at room temperature . If anybody has any idea i request for a help to supply the value to me

Thanking you

Best regards..

muna 

The University of Michigan and Shanghai Jiao Tong University have established a Joint Institute in Shanghai committed to building a world-class academic institution with educational and research missions. The UM-SJTU Joint Institute invites applications for lecturers to support its mechanical and electrical/computer engineering programs. With its unique academic mission in China, the JI offers an extraordinary academic environment. The JI is modeled on world-class US universities. The students are among China’s best.

The University of Michigan and Shanghai Jiao Tong University have established a Joint Institute in Shanghai with a commitment to build a world-class academic research and educational institution. The UM-SJTU Joint Institute invites applications for tenure-track (Assistant, Associate, and Full Professor) positions in all emerging fields of mechanical engineering and related disciplines. These positions are open to top caliber applicants from around the world.

For both mechanicians and physicists, linking continuum concepts to the underlying microscopic characteristics of materials has remained a major preoccupation. Certainly, with the recent advent of the so-called "multiscale" modeling approaches, this topic has been brought to a sharp focus. Cauchy stress is one such continuum concept that has courted a fair amount of controversy.

Hello everyone,

As reported in some references, Maxwell stress of a dielectric  elastomer subjected to electric field can be determined by the following formula

P=e*E^2    (1) -------e=e0*e1, e0 is the dielectric permittivity of vacuum, e1 is the relative dielectric permittivity of the elastomer, and E is the applied electric field.