Blog posts
DSTRAN in UMAT with nonlinear geometry
Dear Colleagues,
I have done some analysis with nonlinear geometry. I use quadratic 3D solid elements. I have learned the way to calculating DSTRAN and DROT from ABAQUS documentation as follows:
ΔF*F (t)= F (t+dt)ΔF=ΔV*ΔR
DSTRAN=ln(ΔV)
DROT=ΔR
PhD Studentship in Design of Polymeric Foams
A 4 year project, in collaboration with SABIC, on the design of polymeric foams will be performed at the Cambridge University department of Engineering. The project will explore the relationship between microstructure and macroscopic properties of a range of new reinforced foams, including composite-reinforced foams.
3D Printing of an imperfect cylindrical shell
Hi, all.
We are working on 3D printing of an imperfect cylindrical shell and run into couple of issues. Hopefully some of you had seen similar issues before and help us moving on our problem.
How to export Abaqus part and import to CAD or Solidworks?
Extinct Kangaroos Couldn't Hop
Another couple of interesting articles to share. Using some "mechanics" principles, researchers have reasoned that 100,000 years ago, kangaroos were too heavy to hop.
A while ago, a different group of researchers published the results of computer modelling (using genetic algorithms) that showed dinosaurs might have hopped and skipped as forms of locomotion! (But only if particularly happy?)
These articles might be good to share with undergraduate engineers for discussion in tutorials. There are issues to discuss with assumptions in both cases.
Z machine makes progress toward nuclear fusion
I thought the following article might be of interest to some on this site.
3 Tenure-Track Faculty Positions - AES at CU-Boulder
The Department of Aerospace Engineering Sciences in the College of Engineering and Applied Science at the University of Colorado Boulder invites applications for three tenure-track faculty positions in the areas of structures and materials, small satellites, and bioastronautics. Applicants in structures and materials are especially sought with the following research interests: Design, modeling, fabrication, and characterization of structural and/or multi-functional materials and their integration into innovative aerospace systems; preference given to applicants with an experimental focus.
Postdoc in multi-scale modelling of composites vibration response @ Ghent University (Belgium)
Nowadays, there is an increasing interest to use composite materials in automotive applications, in particular the use of fibre-reinforced plastics (carbon or glass fibres in a polymer matrix) is widely considered. The use of lighter materials, and hence a reduced fuel consumption, can be one of the possible solutions for reduced CO2 emissions. As the automotive industry is mainly familiar with metals and plastics, a lot of research is being spent on the mechanical response of composites under fatigue and impact loading, and on developing new design methodologies for these "new" materials.
Micropolar Elasticity
Hi ,
I want to learn about micropolar linear elastic theory. Could anyone pls guide me which book/article/journal is best suited for a beginner in this area. I have quiet good background in basic solid mechanics, FEM and Dynamics.
Thanks in advance