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Mohr Circle Diagram for Strain

Source: R/strain_quantitites.R
Mohr_strain.Rd

Plots the Mohr Circle for Strain

Usage

Mohr_strain(
  lambda1,
  lambda2 = NA,
  lambda3,
  phi = NULL,
  fg = par("col"),
  bg = "lightgray",
  fg23 = par("col"),
  bg23 = "white",
  fg12 = par("col"),
  bg12 = "white",
  axes = TRUE,
  col = "black",
  full.circle = FALSE,
  include.zero = TRUE,
  xlim = NULL,
  ylim = NULL,
  round = 1,
  ...
)

Arguments

lambda1, lambda2, lambda3

numeric. Magnitude of quadratic elongation \(\lambda\)

phi

numeric. (optional) Angle (in degrees) for a specific strain

fg, fg12, fg23

border color for the Mohr Circles spanning lambda1-lambda3, lambda1-lambda2, and lambda2-lambda3, respectively

bg, bg12, bg23

fill color for the Mohr Circles spanning lambda1-lambda3, lambda1-lambda2, and lambda2-lambda3, respectively

axes

logical. Show axes of plot?

col

color for the stress state for a given phi.

full.circle

logical. Should the complete Mohr circle be shown, or only the upper (positive shear stress) part of the circle?

include.zero

logical. the plot range be extended to include lambda = 0?

xlim, ylim

range of plot

round

integer indicating the number of decimal places to be used for rounding.

...

optional graphical parameters.

Value

matrix with the lambda and gamma values for given phi

See also

Mohr_plot() for Stress. strain for converting strain quantities

Examples

Mohr_strain(lambda1 = 4, lambda3 = 0.25, phi = 25, col = 'red')

(Mohr_strain(lambda1 = 4, lambda2 = 1, lambda3 = 0.25, phi = c(0, 25, 50, 45), col = 'red', full.circle = TRUE, axes = FALSE))

#>      lambda_i  gamma_i
#> [1,] 2.125000 1.875000
#> [2,] 2.917409 1.699327
#> [3,] 3.561333 1.205227
#> [4,] 3.450825 1.325825