Hello,
I'm a new Abaqus user. I'm trying to model deep and shallow foundations in Abaqus with Mohr Coulomb failure criterion. Without success unfortunately :(
Would anyone be that kind and help me? If it is only possible please send me *.cae file or a link where I can find it. With examples of this kind of modelling and I will try to learn and find mistakes in my model.
Thank You in advance
Regards,
Anna
http://www.newtonfellowships.org/
the iMAM is welcoming applications from outstanding post-doctoral researchers from outside the UK seeking research experience in our computational mechanics group. The successful candidate would join a group of 7 post-docs and 7 PhD students led by four academics and, in particular, an ERC Starting Independent Research Group.
Email stephane dot bordas at gmail dot com for details.
Best regards from Cardiff,
Stéphane
********
New question!
I want to explore the same problem in two-dimensional structure (e.g. thin plate).
According to Love simplification, the cross section rotates but the shear
deflection is neglected. This means the edge cross section is not
vertical actually. Can I still assume the shear force on the edge cross
section is always vertical? e.g. free boundary condition on a circular plate under a concentrated in-plane edge force.
Mechanics of Materials Toolbox for Maple screencasts
Hi all!
I am working in a design optimization process MATLAB-ABAQUS and i need that abaqus writes the nodal coordinates in the inp file with at least 12 significant digits. If i change nodal output precision to full in the job manager i only get 9 digits.
I already changed numDigits in session.journalOptions.defaultFormat, session.journalOptions.fieldReportFormat and session.journalOptions.geometryFormat by submitting in the command line
nf = NumberFormat(numDigits=12, precision=0, format=ENGINEERING)
Dear Everyone,
Now, I am writing Abaqus’s subroutine (Vumat) for modelling fracture and damage in Ferritic Steels.
The failure theory I have to use in my PhD research is the Rousselier’s Theory.
I try to write Vumat by following the procedure of Rousselier model integration in PhD thesis namely ‘3D CAFE modelling of transitional ductile - brittle fracture in steels’ that can see from http://seis.bris.ac.uk/~mexas/thesis.pdf (Appendix.B).
Hi,
i have a problem with the domain TIME = FREQUENCY DATA.
My test data is taken from a triaxial compression test wit constant
temperature and amplitude of the load, and ten preassigned frequencies.
The mastercurve from the data allows me to use any frequency of the
tested array.
The conversions from elastic modulus[E] to modulus of elasticity in
shear [G], and bulk modulus of elasticity [K] an their real and
imaginary parts are obvious.
The problem is that abaqus only accepts 50 per cent of the input data.
Dear All,
I am modeling 3D beams with arbitrary cross sections and for that purpose I need to calculate the warping function numerically. The warping function ψ(y,z) is defined as a solution of the following Laplace equation with Neumann boundary conditions:
∂2ψ/∂y2 + ∂2ψ/∂z2 = 0 in Ω,
∂ψ/∂n = z*ny - y*nz on Γ,
where Ω is the cross sectional area, and Γ is its contour. This system can be solved by different numerical methods, for example, finite element method, boundary element method, finite differences...
Numerically I obtain that
The damping ratio, used in quasi-static problems, such as sheet forming, stamping, forging, is that role, b, shown in the following equation
Ma+bCv=P-F
For the problems mentioned above, the value of b is about 0.1. if dynamic explicit method is employed, the simulation may encounters steady problem, while convergence problem for implicit method employed. I think, you can search some articles on damping in sheet metal forming, then you will understand the effect of this damping ratio.
