Course Announcement: EM 600 Aeroelasticity (Dept of Aerospace Engineering & Engineering Mechanics, San Diego State University)
Hi all,
A new Aeroelasticy course is offered at San Diego State University.
Course Description
Blog posts
VUMAT for Nitinol --- why VUMAT and not UMAT?
Dear all,
I'm new in imechanica. I need some informations about VUMAT for Nitinol. I would like to implement in fortran a subroutine for the behaviour of shape memory alloy.I looked for some subroutines already implemented but they have been developed in the implicit way.
It's true that with the VUMAT(explicit) I could have some problems of stability and convergence.Could someone suggest me any reason to make this model in the VUMAT?I know that in VUMAT I can't redifine the time increment so before running the analysis It's important to pay attention on Dt.
Fracture mechanics
hi all..
i am having one doubt, please help me.
In a isotropic plate, if crack tip is present then to model the crack tip we use quarter point element ( IN ANSYS).
if we wants to model more than one crack tip than ,, ansys will give following error
" Only one stress concentration can be specified per area"
Please let me know what is the procedure to model more than one crack tip.
Thanking you
vinaya
Yield line theory application to a edge fixed disk by central load
Dear all,
I am trying to apply the Yield line theory to analyze the fracture of a disk by central load, F.
Do anybody know the yield line on the disk? I searched some books to find most references focus on rectangular plate rather than disk.
All suggestions are welcome. Thanks.
18th Annual International Conference on COMPOSITES/NANO ENGINEERING (ICCE -18), Anchorage, Alaska,USA, July 4-10, 2010
The Eighteenth Annual International Conference on
COMPOSITES/NANO ENGINEERING (ICCE - 18)
ICCE-18 Anchorage, Alaska,USA, July 4-10, 2010
http://myweb.polyu.edu.hk/~mmktlau/ICCE/ICCE_Main.htm
Message from ICCE Chairman
modelling of rectangular composite plates using ANSYS
I have to analyse the carbon/epoxy composite laminate in ANSYS, to determine the natural frequency of rectangular composite plates. The plate is simply supported . I am not able to model the composite lay up with the correct orientation of the fibre. so any body have the step by step procedure for modelling the composite lay up in ANSYS and how to determine natural frequencies please give it to me on my e-mail: sharma_avadesh [at] yahoo.com
3D Composite model in ABAQUS
Dear Abaqus Users,
I would like to model 3D composite structures using Hashin Damage model in ABAQUS. I have seen in ABAQUS manual that Hashin damage model is applicable only for shell element. I would like know whether I can use 3D element available in ABAQUS. Any help would be higly appreciated.
Parimal
Research Scholar
Michigan State University.
plastic analysis of a plate containing an edge notch and a piezoelectric inhomogeniety with ansys
Hi,
I am rojin ghandriz,study M.c civil engeeniring at sharif university in iran,
I study on my tesis a bout plastic analysis of a plate containing an edge notch and a piezoelectric inhomogeniety.
I have questions a bout the crack initiation in Ansys v11.0..How could i get initiation of crack whit increasing tensile loading on plate in ansys?
thanks
rojin
question about binding reaction in surface of Microcantilever
As shown in the figure of Microcantilever biosensor,antigen solution flow into the cell, the banding reaction take place between the antigen and antibody. Wu research on the diffusion of molecules for long detection time (Wu, Datar et al. 2001), Berger elucidated the kinetics of stress curve for self-assembly as a simple adsorption isotherm.(Berger, Delamarche et al. 1998).