Is there any good reference for creep strength of 304 stainless steel at 1000C? I am very curious the behavior of such material at extreme conditions, like creep strength as a function of temp.
Thanks a lot,
Henghua
Hello everyone,
I am M.Tech student,i am working on Stability of shell Structures. I am in the process of selecting a relevant topic to do my M.Tech Thesis. For almost 2months now, i am searching for a topic which will be new and had not done much in the literature.
I had seen topics like anisotropic shells, buckling instability, snap-through, cracks in anisotropic cylindrical pressure vessels.
Thank you for all of quick response. Yes, I need a calculation method as long as good agreement with measurment methohs.Generalization will be important in which method we choose espesially in calculation of stress field.
Hi
I am using a FORTRAN FE code for 4 quad elements with a viscoelastic material and with contact analysis. The routine follows a Newton Raphson iteration scheme and which makes the residual zero for convergence. I am using direct sparse matrix solver from the FORTRAN math library.
It seems that the measurment of local stress and strain in fatigue crack tip will be difficult. some researcher use F.E analysis method,in contrary using of numerical solution. however analytical method also has investigated. what method you can imagine? i need a brain storm in this issue.
Thank you
Hadi
hello colleagues
I want to do project on
Modeling of Friction Stir Welding (FSW)
Process with SPH........
I am new to this area but i know ls-dyna..if u have any
idea.. sample key files???... about this topic.... pl guide me...
thanks in advance
We perform uniaxial tensile tests on polyimide-supported copper films with a strong (111) fiber texture and with thicknesses varying from 50 nm to 1 μm. Films with thicknesses below 200 nm fail by intergranular fracture at elongations of only a few percent. Thicker films rupture by ductile transgranular fracture and local debonding from the substrate. The failure strain for transgranular fracture exhibits a maximum for film thicknesses around 500 nm.
I have had some time to write down an informal introduction to Moving Least Squares, from my coding perspective. It is supposed to be a condensation of experiences after some years of using it, although it does not contain any new theoretical aspect.
Dear everyone
If we considerer a 3D fracture stress and strain field as a combination of numerous 2D fields in thickness direction, the J integral at each 2D plane can be obtained according to Rice’s definition (Abaqus and Ansys also include this function). What I concerned is the ratio of J integral at the surface of SEB or CT specimen to that at the mid-plane of the specimen. What factors have influence on the ratio? How to find the quantitive relationship between the factors and the ratio in linear elastic model?
Hello to everyone
I want to model a reinforced concrete cylindrical shell with abaqus using concrete damaged plasticity model. I want to model meridional and circumferential rebars in cylindrical shell in abaqus cae. I want to know which rebar geometry (angular or constant) I should use for modeling of both meridional and cirunferential rebars.Can I plot crack pattern for reinforced concrete shell in abaqus?
please guide me
