Stroh formulation
I want to know about the basics of stroh fromulation and its application in Piezoelectric material.I didn't find the basic lecture notes or the material regarding that on the internet.
kuldeep sharma
Geometric non-linearity basic question
Hi,
I've been reading the book on Non-Linear Finite Element Analysis by Crisfield and have the following questions:
1.Considring the equation 1.10 in Crisfield's book on page 4, it is:
Kt = EA/l (z/l)^2 + EA/l (2zw + w^2/ L^2) + N/L
where:
Kt->is the tangent stiffness matrix
z->in itial displacement
L->Length of the bar-as an approximation the undeformed length of the bar is considered.
N->internal force in the bar.
What Platform Would You Prefer for a Software That Helps in Learning FEM---Windows or Java?
Ideally, this post of mine should carry a poll, but I guess as an ordinary user, I cannot insert one.
Currently, I am writing a small software program that is especially designed to help learn FEM. For instance, I will be providing detailed listings for every intermediate step, e.g. all those [D], [B], [k], etc. matrices for each element, as well as the final assembled global system {F} = [K]{d} and its solution separately at each Gauss point. Only linear static problems for the time being; will add transients/eigenvalue problems in near future.
Post Graduate Researcher or post doctoral position in developing fish life cycle model
Post doctoral associate or post-graduate researcher position is available in the Department of Civil Engineering at the Catholic University of America ,Washington, DC. The candidate should be proficient in C++ programming and OOP concepts and preferably (but not necessarily) GIS applications. PhD degree is not necessary. The project involves developing an agent-based fish life cycle model for San Francisco Bay and Delta. The initial appointment will be for two years with the possibility of extension based on satisfactory performance.
Thermal Ratcheting in Cylindrical tubes
Hi ,
Due to Thermal ratcheting in cylindrical pipes carrying hot fluids that are used in nuclear applications, the pipe bulges. I am about to start a project to study why this bulge comes and how to rectify it. It would be very helpful to me if some of you can give your valuable suggestions and references in the area of Thermal Ratcheting in pipes.
Thanks and Regards,
Rohith
Effect of Fiber Geometry on Pulsatile Pumping and Energy Expenditure
Myocardial fiber orientation is a topic that has recently received much attention in connection with cardiac pumping function. The twisting motion of the cardiac base to apex can be a direct result of this geometric orientation of these fibers. One important question that has not been addressed yet is whether there is any relationship between the contractile energy expenditure and the geometric orientation of myocardial fibers. In the present work, we study the effect of contractile fiber orientation on pumping function.
Strain Based Fracture Mechanics
Forums
Free Tags
Hi!
Can anyone give me some tips within strain based fracture mechanics. My problem is predicting the fatigue life of a gusset speciemen, using strain based FM. I have read some litterature, but have problems on understanding the order of calculating, and methods of solving the equations. If anyone could help me understanding, I would be greatful.
Thanks,
Sean Angus
Singular stress fields at corners in flip-chip packages
An electronic device integrates diverse materials, and inevitably contains sharp features, such as interfaces and corners. When the device is subject to thermal and mechanical loads, the corners develop intense stress and are vulnerable sites to initiate failure. This paper analyzes stress fields at corners in flip-chip packages. The stress at a corner is a linear superposition of two modes of singular fields, with one mode being more singular than the other. The amplitudes of the two modes are represented by two stress intensity factors of dissimilar dimensions.
phd in mechanical eng
Dear Sir.
Greetings!
I believe my strong academic background, personal initiative, and work experience would be an asset to my Future research work and also for my Dream career. As indicated in my resume, I have Sound knowledge in Modeling and Analysis Packages, Auto CAD, Pro-Engineer wild fire, Pro-Mechanica & ANSYS
MRI-R2 has been posted
The NSF Major Research Instrumentation Program (MRI-R²) Recovery and Reinvestment is now posted. This is a good way to build up the needed major research instrumentation
The deadline for proposals will be August 10, 2009.
A link can be found through the page www.nsf.gov/od/oia/programs/mri (preferred to keep abreast of updates) or through the NSF-wide page at http://www.nsf.gov/funding/pgm_summ.jsp?pims_id=5260.