Hi there, I'm kind of new in iMechanica despite that I've registered for more than one year. I've read many posts containing helpful information, but never posted my own until now.
Dear Friends,
I have developed a ser of 2-D finite elements for the problems of structural mechanics. These two dimensional elements are capable of accurately predicting three dimensional stress states using three diemnsional constitutive law. My doubt is: can these elements be used for the analysis of 3-D crack propagation using XFEM?. The displacements chosen for these elements are simple.
Subramanian
PRL 106, 248302 (2011) The atomic scale lithiation mechanism of individual SnO2 nanowires in a flooding geometry was revealed by in situ transmission electron microscopy. The lithiation was initiated by the formation of multiple stripes with a width of a few nanometers parallel to the (020) plane traversing the entire wires, serving as multiple reaction fronts for later stages of lithiation.
Stephan Rudykh (a), (c), Kaushik Bhattacharya (c) and Gal deBotton (a), (b)
In this Tech Brief, we present two interesting fluid-structure interaction problems involving adaptive meshing and physical instability
Lately I began to wonder why I hadn't learned how to calculate the beam shear stiffness in college. I vaguely recalled that the teacher told us the shear stiffness could be omitted in the beam calculation compared to the bending stiffness.
Can anybody show me how to calculate the shear stiffness if it is large enough and cannot be ignored? Like the example shown in the picture below
Dear Colleagues,
I wish to bring to you my recent work with my supervisor Hui-Hui Dai on "Some Analytical Formulas for the Equilibrium States of a Swollen Hydrogel Shell". Below is the abstract and attached is the preprint of the article. I will very much appreciate your comments and suggestions.
Hey to imechaica, i am doing my M.E Project in composites.i have done finite element analysis of composite plate with different boundary conditions and different orientation angle with antisymmetric stacking sequence. i absorve tip center displacement of cantilever plate is increasing with orientation angle increment and for simple supported plate it decreases.
stacking sequence is [0/-θ/θ/-θ/θ/0]
please help me to understand this.
Dear everyone:
I am trying to use a nonlocal damage criteria to simulate the crack growth, which can reduce the mesh dependency.
In abaqus, VUMAT/UMAT is doing computation at integration point for each increment, but I want to do the post-processing after each increment to get the non-local state variable and return this value back to calculation.
