I am looking for a postdoctoral position. I have expeience in finite element modeling and laboratory measurements of ultrasonic waves in ferroelectric and piezoelectric plates, piezoelectric transducers and actuators, MEMs. Also worked in the field of computational electromagnetics. Please look at the attached resume.
Hello everyone,
I am curretly working on predicting the failure in thin loaded plates. The plates are impacted by a hemispherical rigid cylinders at a low speed (4.53 m/s <--> Free fall from 1.05 meter) and are perforated experimentally at their center.
I tried to simulate failure with ls-dyna on a shell based model ( the sheet is very thin : 1 mm thickness Vs 130 x 130 mm ), but it seems that the failure strain measured on the tensile tests is underestimated ( the curves after the begining if necking are false).
First announcement
IUTAM SYMPOSIUM Fracture phenomena in nature and technology
Brescia, Italy, July 1-5, 2012
Web page: http://events.unitn.it/en/iutam2012
Call for contribution
We seek advanced and original contributions in fracture research,
interpreted broadly to include new engineering and structural mechanics
treatments of damage development and crack growth, and also large-scale
You check my reverse engineering studies and scripts in www.mekanik.net.
There are two open junior faculty positions in Stanford’s Mechanical Engineering department. One is in the area of biomechanical engineering (broadly defined) and the second is theoretical and computational fluid mechanics (broadly defined).
http://me.stanford.edu/research/open_positions.html
The following is a synopsis of the announcements.
Tenure Track Junior Faculty Opening
Antonio Ereditato, spokesman for the international group of researchers, said that measurements taken over three years showed neutrinos pumped from CERN near Geneva to Gran Sasso in Italy had arrived 60 nanoseconds quicker than light would have done.
dear my friends:
I am a new one in the fatigue crack study. as we all konw, there is a crack resistant near the crack tip before its cracking. HRR model has been well testfied in monotanic crack, so i wonder whether it can be expanded to the cyclic crack situation or not! if yes, so how to describe the stress-strain distribution just nearby the tip? can we define a similar resistant value in the cyclic status?and is the stress redistribution concept right for the stress harden material?
any suggestions would be appreciated!
regards, Long
