Hello Abaqus members,
I am doing an explicit simulation of a simple fork and fiber system. The parts have a node to node connectivity. The fork is subjected to a sinusoidal load, and I am interested in the displacement at the tip of fiber.
Here are some movies of impact fracture of various test cases, recorded at up to 5Mfps using the new Kirana camera. The sensor is not the final one yet, but the results are promising. Wedge loaded PMMA plates with holes reveal very nice crack branching (somewhat analogous to fireworks). My students Y. Rotbaum and A. Godinger who performed to test cases thought that Haendel "lascia chio pianga" is appropriate. I don't take a stance on that!
Enjoy:
I have done flat plate tensile test experiment with plate having u notch at different angle to get mixed mode behaviour.The experiment shows the force variation F(30 DEG)>F(45 DEG)>F(0 DEG)>F(60 DEG) While fem elasto-plastic model made in abaqus shows F(0 DEG)>F(30 DEG)>F(45 DEG)>F(60 DEG).
Can anyone tell me why this contradiction is there between experiment and fem model.
The project addresses tissue modeling for the pharynx region and is a part of a larger project addressing the obstructive sleep apnea syndrome (mechanical, fsi, medical angles). See www.jobbnorge.no/ledige-stillinger/stilling/101325/phd-positions-in-sof… for further info. Deadline is 15 May.Expected start-up is summer 2014.
PhD studentship available http://icube-avr.unistra.fr/fr/index.php/Sujets_de_th%C3%A8ses#Simulatio... http://icube-avr.unistra.fr/en/index.php/Open_Positions#PhD_Thesis_in_me...
Please contact Hadrien or myself for more details. Related recent publications:
Amit Acharya Xiaohan Zhang
(Chinese Annals of Mathematics, 36(B), 2015, 645-658. Proceedings of the International Conference on Nonlinear and Multiscale Partial Di fferential Equations: Theory, Numerics and Applications held at Fudan University, Shanghai, September 16-20, 2013, in honor of Luc Tartar.)
We discuss the relevance of non-metricity in a metric-affine manifold (a manifold equipped with a connection and a metric) and the nonlinear mechanics of distributed point defects. We describe a geometric framework in which one can calculate analytically the residual stress field of nonlinear elastic solids with distributed point defects. In particular, we use Cartan's machinery of moving frames and construct the material manifold of a finite ball with a spherically-symmetric distribution of point defects.
Hello everyone,
I am working on textile composites. I have to assign local material orientation for the fibers. I have come across *ORIENT subroutine in abaqus. But I am quite new to user subroutines. Is there any other way in which I can assign local material orientation to the fibers?
The fiber layout is such that it has linear as well as sine part. Can anyone give some idea on how to create *ORIENT for such fibers?
Thanks
