Lode Angle History?
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ANSYS - To analyse for forces generated by rotating tool in FSW process
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I have a problem in simulating FSW process. I have to analyse
the process for forces generated by the rotating tool and verify whether
the toggle clamps i used for the process is sufficient to hold the
workpiece.
Can anyone help me out in this regard like how to analyse in ANSYS the
forces generated, by specifying rotating and traversing speed of the
tool?
Post crack behaviour in ANSYS for concrete beam-column connection.
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Have a prob in Analysing FEM discrete model of Beam column connection [both monolithic and precast] for crack behaviour indisplacement controlled cyclic loading program.
Tried with various values of closed and open crack and co-efficient.
applied -1 for crack and changed even the keypoint
in stiffness multiplier also 0.6 also set keypoint 7 to "1" instead of default value "0"
But even by all these the analysis runs only for 0.3mm of deflection..
Can a beam act like a spring in relation to other spring?
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a simply supported beam (length= L) is subjected to an upward force= F at the middle , at the same time there is a spring above the top of the beam at the middle too and the spring is subjected to a downward force = - F .
the spring stiffness is k1, beam stiffness k2 (which equal to the force which produce 1mm deflection at the middle of the beam i.e = 48EI/L^3 ).
the spring stiffness is k1, beam stiffness k2 (which equal to the force which produce 1mm deflection at the middle of the beam i.e = 48EI/L^3 ).
the beam can be steel beam UPN 80 , considering weak axis Y (19.4 cm4)
I was wondering what is origin of weak form in continuum mechanics.
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Last day, I took my class of Nonlinear Analysis of solids and structures.
And I learned about the strong form & weak form in the prilciple of Virtual work.
I can find the origin of those two form that is from Piola-Kirchhoff stress tensor.
but why Integral form is called "weak form"? why Differential form is called "strong form"? why?
I was just wondering.
ANSYS 12 viscoelastic model
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Does anyone know where can I find a manual and or tutorial for ANSYS 12.0 mechanical APDL , specifically where I can find something related to the use of viscoelastic material models???
Mixed hardening Amstrong-Frederick and Ludwik J2 plasticity model VUMAT implementation
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Hi, I’m trying to implement a mixed hardening J2 plasticity model. The idea is to use the Ludwik law to represent the isotropic hardening and the Amstrong-Frederick law for the kinematic hardening, both combine in a J2 classic von Mises model.
I need some advice for the return mapping algorithm.
Once that I have check that the elastic trial state is not plastically admissible I have to solve a three equation system, where the first two are a tensor equations and the third one is the J2 yield function equation.
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Micro Modelling of Masonry Wall Panel in ABAQUS
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Hi All,
I am doing research of micro modelling of masonry panel using ABAQUS. I try to model the interface using cohesive element in ABAQUS. I want to compare the result with the experimental research available.
Is there anyone here have done that or doing it right now. I have some difficulties to define the interaction between cohesive element and bricks. It is really difficult since I use abaqus standard, to define the surface one by one. Until today I also can not make my cohesive element geometry thickness to be zero.