i am a student of Msc in structural engineering. currently i have been involved in the research of "shear behaviour of RCC beam column joint ".
Hi, dear all,
I am facing problem on differentiating left Cauchy deformation tensor and right Cauchy deformation tensor.
thanks for notes in http://www.engin.umich.edu/class/bme456/ch3strain/bme456straindef.htm, i can derive the them in terms of mathematical equation, but i cannot differentiate them in engineering modelling filed.
From what i read is
Dear all,
I recently need calculate the stiffness matrix of the cohesive elements manually via mathematica. I used the finite element method to fulfill the assignment, but the result I got didn't match the stiffness matrix I extracted from the Abaqus. Neither did my supervisor.
knn, ktt and kss seem to be so obvious for the traction-seperation law, as also it measioned in Abaqus. Could you please help me out by offering the way to find how the ABAQUS exactly design the cohesive elements or how ABAQUS calculate the stiffness matrix.
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Dear all
myself Radheshyam yadav student of ph.d working on numeical modeling of earth sceince( geodynamic), i am new on abaqus ,there on error on sumit the job in following
element set _whole_model_gravity_ELset have not been defined
A nanocomposite electrical generator composed of an array of zinc oxide nanowires is considered.
The electric potential distribution along zinc oxide nanowires is modeled using continuum
mechanics and Maxwell’s equations for the case of axial loading. A perturbation technique is used
for decoupling the constitutive equations. The governing differential equations are solved using a
finite difference method. It is shown that a gradient of electric potential exists along the axis of the
zinc oxide nanowires. Maximum and minimum values of electric potential exist at the extreme ends
along the nanowire length and have opposite signs. The positive and negative voltages are separated
Hello All,
Does anyone have any idea how to automate meshing using USER DEFINED ELEMENTS (for Example UEL) in Abaqus using python. Actually I need to mesh an arbitrary shaped structure with 9-Node Quadrilateral Element. Abaqus doesn't support meshing of 9 Node Quad Element (S9R) either.
The problem of a cylinder with a small spherical cavity loaded by an
equilibrium system of forces is suggested and discussed and its formulation of Saint-Venant's Principle is established. It is evident that finding
solutions of boundary-value problems is a precise and pertinent approach
to establish Saint-Venant type decay of elastic problems.
Hi, everyone!
Now I am starting the research on cardiac mechanical modelling. The user defined function "UMAT" was used to implement the anisotropic hyperelastic Fung-type model . Now I come across some difficulties to write UMAT subroutine. Can someone recommend me some useful codes that can let me know how to write it.
