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Vibration of Circular Plates

Submitted by hrbeu221 on

Dear All,
These days I am do some research on vibration of circular plates (out-of-plane and in-plane). In the reference, the displacement in radial direction can be expressed with Bessel polynomial. I want to use the Rayleigh-Ritz method to solve these problems. The strain energy and kinetic energy can obtain with integral. If there is the bessel function, how to calculate the integral. Also I want to consider some spring in the boundary to change the boundary conditions.

Two PhD positions are available to work on corrosion

Submitted by atiwari on

Two PhD positions are available to work on corrosion of aluminum and steel. Students are expected to study "how corrosion affects the microstructres in the metal and alloys".

Positions are available in world's leading research laboratory. Interested students may contact on the following website: 
http://www.hawaiicorrosionlab.org/contact.htm

Is Latent Heat for phase tranformation is mandatory for all kind of gases/liquid?

Submitted by sanjayiway on

Like water, which keep change in phase from vapour, liquid, solid by adding required latent heat at constant temperature. Is this mandatory for all gaes like oxygen, nitrogen, any metal.

Fatigue Analysis in Ansys Workbench Environment

Submitted by ali_mechanic_64 on

 

Hello everybody

I’m trying to do a fatigue analysis with Workbench Ansys. The load exerted on model in 2.7 seconds and varies between two values (it increases, reaches to a peak and then decreases to first value) and these 2.7 s cycles continue to failure. I was wondering if it’s possible to model this load history in Workbench environment. Also if possible, please tell me how to do that.( load graph attached)

Thanks in Advance

 

A1SiN Oxidation Resistance Measurement With 3D Profilometry

Submitted by NANOVEA on

Oxidation resistance is critical for metal components in high temperature environments. Exposure to high temperatures can result in the depletion of the metal with rapid oxidation and material loss. Without protective coatings, surface oxidation adversely affects the performance and durability of the metal component. For example, engine parts, turbine blades, tooling and many others. It will be critical to measure with profilometer the protective coating chosen for a given application.

Full-time Postdoctoral Research Associate, Vienna, Austria

Submitted by Gregor_IGT on
The Institute of Geotechnical Engineering at the Department of Civil
Engineering and Natural Hazards, at the University of Natural Resources and Life
Sciences (Universität für Bodenkultur), Vienna, Austria, invites applications
for a position in Geotechnical Engineering at the postdoctoral research
associate level.
The director of the institute is Prof. Wei Wu.
Contract: Full-time, fixed term of 6 years
Salary: € 52.498,60 per year (before tax)
Closing date for applications: 01.04.2012

ASME IMECE 2012: Symposium on Quality and Reliability of Electronic/Photonic Packaging, MEMS, and NEMS

Submitted by Frank W. DelRio on

Dear Colleagues:

 

We are currently soliciting abstracts for the 2012 ASME IMECE conference on November 9-15, 2012 in Houston, TX.  The symposium is entitled Quality and Reliability of Electronic/Photonic Packaging, MEMS, and NEMS and is part of the Micro- and Nano- Systems Engineering and Packaging Track.

 

The call-for-papers for the symposium is as follows:

dstl PhD studentship: Electropulsing and nanostructured steels

Submitted by rongshan on

dstl PhD studentship: Electropulsing and nanostructured steels

Imperial College London - Department of Materials

Duration of Studentship: 42 months

Applications are invited for a studentship in the field of electropulse-assistant nano-steel processing, leading to the award of a PhD degree. The post is to conduct research in the Department of Materials at Imperial College London and is supported by an initial bursary of £15,823 p.a. and the tuition fees are paid at the home rate only.