stress: Stress Box

Description

Display interactive Stress Box illustrating normal and shear stress on an arbitrary plane given a stress tensor.

Usage

stress(PPs = matrix(ncol = 4, nrow = 3), Rview = c(-130, -50), xscale = 100, Stensor = matrix(ncol = 3, nrow = 3))

Arguments

PPs

3Points in 3 by 4 matrix

Rview

Viewing matrix

xscale

arbitrary scale

Stensor

stress tensor

Value

Graphical Side effects

Details

Interactive program to examine stress. To change the plane orientation, click on one of the points and then on a new position along the axis selected.

If a stress tensor is provided, then a second graphics device is required to show the Mohr's circle.

Examples

Run this code

#####   no stress tensor provided => no mohr's circle
stress()

#########################  run program with a stress tensor
Stensor = matrix(c(
15, 0, 0,
0, 10, 0,
0,  0, 5), ncol=3)


stress(Stensor=Stensor)

P1 = c(0.2, 1, 1, 0)
P2 = c(1, 0.1, 1, 0)
P3 = c(1, 1, 0.4, 0)

  S = stressSETUP(P1, P2, P3, xscale=30   )

stress(PPs = S$PPs, Rview =S$Rview, xscale = S$xscale, Stensor=Stensor )