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Looking for Postdoctoral Position

Submitted by Mehdi Naderi on
research

I am currently a doctoral candidate at Louisiana State University, and expect to complete my PhD degree requirements by Fall 2010. My doctoral dissertation is conducted under the direction of Prof. M. M. Khonsari, and looks at the use of a relatively new methodology for the fatigue of structural components. In my research, I developed an effective and new criterion for fatigue life monitoring of the components subjected to cyclic loading based on thermodynamic entropy concept.

speckle pattern interferometry/stress measurment method

Submitted by navidtajik on
research
experimental mechanics

I’m working on optical method for displacement measurement. and this is interesting to know more about application and development of these methods like ESPI , SHEAROGRAPHY anf HOLOGRAPHY . for example i face with a company that climb their product can give displacement and so strain field in many material and many geometry even in 3-D shapes!!

http://www.dantecdynamics.com/Default.aspx?ID=1029 

Mechanics of in-surface buckling of one dimensional nanomaterials on elastomeric substrates

Submitted by Jianliang Xiao on
research
nanomaterials
mechanics
elastomeric substrate
in-surface buckling
In this recently published paper on Nanotechnology, we studied the in-surface buckling mechanics of one dimensional nanomaterials on elastomeric substrates.  Simple analytical solutions are obtained for buckling wavelength and amplitude, which can be easily applied to the in-surface buckling of different nanomaterials, such as nanowires and nanotubes.  It is shown that in-surface buckling of nanomaterials has lower energy than out-of-surface buckling, which explains the experimental observance o

Analysis of beams with hole

Submitted by parisa on
research
Change in stress intensity factors

Hi everybody,

Is there any limits for using of LEFM?  I have modelled a beam with a penetration.I have moved the holes vertically in the beam and obtained the stress intensities for each movements at the corners of the hole. Now the hole is closing the edge, stress intensities in mode I and II, suddenly change values (positive to negative and vice versa)  what does this mean ?... Does it mean that I should limit my movements?,,,,

Thank you,

Parisa, 

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