So I need to know how does comsol calculate element stiffness matrice and assemble them, and then programming it in livelink for matlab. I didn't find methods in COMSOL Multiphysics Reference Manual. Could anybody tell me or any suggestions? To be more specific, let's say, the second-...
Related to this Question Let A be a 2 x 2 matrix, such that the columns are unitary vectors and orthogonal. Prove that A is invertible and that A^-1 = A^t. How do you calculate induced vector norms of a simple real matrix? Specifically, how do you do the induced 1-norm, induced...
. 3-24 expmv Function: Calculate matrix exponential multiplied by vector . . . . 3-24 expm Function: Improved algorithm for single-precision matrices . . . . . . 3-24 scatteredInterpolant Object: Use multivalued interpolation to interpolate multiple data sets simultaneously . . . . . . ....
How to calculate the theoretical strain? and the Elastic Modulus? Stress-Strain diagram A stress-strain diagram is plotted during the tensile testing of a material to determine the relationship between the stress and the strain at different loads. Various properties of the material are calculated ...
You should do this with Quaternions, it is much, much easier to interpolate with them than with EulerAngles. You can calculate a quaternion from the TxTransformation. In newer .NET version you will find classes in the System.Numerics namespace. Selected as BestLikeLikedUnlike ...
Next, we define T as the partial derivatives matrix of x to q, so: $$ {\mathbf{T}} = {\frac{{\partial {\mathbf{x}}}{{\partial {\mathbf{q}}} $$ (6) Equation (6) is used in order to calculate the derivatives of x as a function of q, to input in our virtual power ...
The applied load was normalized by the cross-sectional surface of the bone to calculate the tissue stress, whereas the tissue strain was determined by imaging the change in spacing of horizontal lines marked on the sample's surface; the displacement of these lines was then divided by the ...
(CRPS). Individuals recruited from pain support groups and social media platforms engaged in a self-narrative pain memory exercise. A modified Pain Narrative Coding Scheme was employed to conduct a two-step cluster analysis of pain memory narratives from adolescents and young adults (n=50) with ...
{M}}_{i}) is the mass of the host (substitution) atom at sitei; andKij,αβ({\tilde{K}}^{ij,\alpha \beta }) is the harmonic force constant tensor element between atomsiandjin the pristine (defective) supercell. OnceVis known, one can calculate the pristine, retarded Green’s ...
Surface Area to Volume Ratio | Formula & Calculation from Chapter 11 / Lesson 11 86K Know the definition of surface area and volume. Also, learn how to calculate the surface area to volume ratio and discover the formula used in the calculation. Related...