New article on wrinkling
Curvature-induced symmetry breaking determines elastic surface patterns
Blog posts
PhD Position Available at University of Miami, USA
Dr. Emrah Celik is looking for a PhD student with mechanical engineering background (or a related field) who will apply nanotechnology on bio-medical applications. The student will design the mechanical characterization systems, develop computer programs, perform atomic force microscopy (AFM) measurements and analyze data. The ideal candidate will have previous experience or motivation to learn nano-microfabrication, laboratory measurements and finite element analysis. Programming, design and machining experiences are also plus for this position.
G. Ravichandran, J.N. Reddy, and David Srolovitz elected to NAE
G. Ravichandran, J.N. Reddy, and David Srolovitz are among the newly elected members of the US Academy of Engineering.
How to extend crack in Mixed mode crack growth in Ansys ?
Hi, I am doing project on mixed mode crack growth of semi elliptical crack in gas turbine components under cyclic loading. Ansys has capability for finding J,K using CINT command. But, In mixed mode crack growth, i dont know how to deal with nodes and how to create random crack with new node coordinates obtained from previous steps. If you have any ansys code related to creating crack and finding fracture parameters like K, J (mode 1 or mixed mode), Can you please give me the code.
Thanks
(I cant use any other software, only Ansys)
Can any one provide any apdl code to perform automatic fatigue crack growth ??
Hi, I am using Ansys Apdl for 3d fatigue crack growth. I need any one code to understand how it can be automized (recreating crack with node shift and remeshing).
Thank you
Journal Club Theme of February 2015: The Ruga Mechanics
The Ruga Mechanics
Prepared by Mazen Diab, Ruike Zhao and Kyung-Suk Kim
Brown University, Providence, RI
Introduction
Gravity induced crease-to-wrinkle transition in soft materials
Creasing and wrinkling instability are two distinct surface instability modes characterized by localized singular folds and continuous smooth undulations, respectively. In this article, we show that the surface of a soft elastomer may develop wrinkles or creases under compression and the action of gravitational force, depending on the magnitude of gravitational force.
The Ruga Mechanics
Imechanica Journal Club: “The Ruga Mechanics”
Prepared by Mazen Diab, Ruike Zhao and Kyung-Suk Kim
Brown University, Providence, RI
Introduction
Heat flux problem with HETVAL and DFLUX
Hi,
I am using HETVAL in abaqus to generate the heat. I am testing my subroutine and I set the flux(1) to a constant, like 5000000, but the output 'HFL', which I think should equal to the flux(1), turns out to be a very small number, and also it is a linearly increasing curve w/ time. Thus, the temperature is nearly not increasing.
I am also using the same problem using DFLUX.
Can anyone help me out?
Thanks!
PhD Candidate Structural Mechanics
The Institute of Structural Analysis at Leibniz Universität Hannover invites applications for a
Scientific coworker / PhD Candidate
(Salary scale E13 TV-L) (reference number 62)
The position is available from now. The appointment for this position is at first for a period of one year. An extension of the appointment period after the first year is planned. The work should lead to a PhD thesis.