Dear friends
There are two ways in Abaqus to achieve the buckling load in a model:
1-Linear perturbation-Buckle which is resulted the elastic buckling load of the system
2-static-Ricks which is resulted the inelastic buckling load if the plastic material properties are supported in data entry
The analysis with two mentioned methods shows different first shape modes.
please let me find your idea about the correct buckling shape?
In the latest volume of Engineering Fracture Mechanics there is an interesting paper about the calculation of crack growth paths by use of a phase field model. The considered material is inhomogeneous and that causes the crack to follow a winding path through the material. The material structure is from a CT scanned micro-structure of a cement-based porous material. The paper is:
Case study: Cyberwood
Article title: Microstructural evolution in bitaxial crack-seal veins: A phase-field study
We numerically investigate the characteristics of concurrent carbon redistribution pathways, as the ferrite–austenite front evolves during an isothermal eutectoid transformation starting from a random distribution of preexisting cementite particle. By analyzing the influence of initial interparticle spacing, arrangement and undercooling (below A1 temperature) on the curvature-driven coarsening, we generalize the present criteria of non-cooperative eutectoid transformation.
A state of stress in a body. Components of stress. Subject to a load, a body develops internal forces. The distribution of the internal forces in the body is usually inhomogeneous. For example, when a rod is bent, part of the rod is in tension, and the other part of the rod is in compression.
If the internal forces are uniformly distributed in the body, the body is said to be in a homogeneous state of stress. For brevity, we often say a state of stress, or just stress.
Hi All,
I am simulating the drilling process of Al2024 using Abaqus and I am struggling with Thrust force results.
I am getting excellent Torque results similar to the experimental ones however my Thrust force profiles are underestimated and have an odd shape.
any suggestion on how to tackle the problem
I tried changing mesh density and element size as well as friction coefficent but nothing seems to work.
I attached two image showing one of the results and comparison for thrust force and torque.
Many thanks
Subject to compression, elastic materials may undergo bifurcation of various kinds. A homogeneous material forms creases, whereas a bilayer consisting of a stiff film and a compliant substrate forms wrinkles. Here, we show several new types of bifurcation behavior for bilayers consisting of films and substrates of comparable elastic moduli. Depending on the ratios of moduli and thicknesses of the two materials, the critical strain for the onset of creases can be either smaller or larger than that for the onset of wrinkles.
HI all,
im a new user of abaqus (cae,6.10) wanna simulate a thermal loading (heat transfer)on a soil sample?was wondeeing anyone can help me out? top and bottom boundaries have initial constant temp,the sides are adiabatic (is it by default for temp.boundary??)boundary ,in step one ,need to apply steady state heat in order to obtain the temp, distribution in soil sample.
after predefining thermal boundary and creating step for steady state heat and run the job i cannt get any result??i set the output too,i know thats a very vast question, please help me out
