Recent content by Leyic

The observed effect has to do with load balancing and boundary conditions. When a classic material is stretched axially, the microstructure creates off-axis forces to shrink the cross-section and preserve the mass density per the Poisson effect. If these microforces are not balanced, density...

I am currently using a hyperelastic linear stress-strain relationship with full nonlinear Eulerian strain and a modification that compressive stresses are forcibly set to zero. The FEM model regards each element as a 2D membrane. I realize this is not a particularly accurate model for polymers...

In regards to the second question: Well, yes. If you want the water at the end of the system to be at least y = 1 [bar], and you know the pressure drops by d = 1 [bar], then of course you need at least y - d = x = 2 [bar]. But I think your first question is more interesting. Bernoulli's...

I would like to simulate the vibrations of a thin film polymer in vacuum using nonlinear analysis. For this purpose I am using an FEM program I have written in MATLAB. I do not have any data regarding damping in the structure, so I am estimating the damping using stiffness-proportional-only...

Assuming superposition works*, the cylinder would need spherical end caps to properly coincide with the sphere, otherwise there would be "left over" material and I would find an approximate solution. I suppose I could construct the cylinder in a piecewise manner using integration by disks...

Note: This is my first time using LaTeX. Any formatting advice would be appreciated. Homework Statement Consider a homogeneous sphere of radius R_s made of a material that exerts a force obeying the inverse r-squared law (i.e. a particle of this material exerts a force on a test particle...