# induced_stress: Induced stress on a surface In maxgav13/GMisc: Miscellaneous Functions for Geology (and its areas)

## Description

Plots the stress distribution under the center of a footing of different shapes.

## Usage

 ```1 2``` ```induced_stress(qs, B, L = NULL, z.end, footing = c("strip", "square", "rectangular", "circular")) ```

## Arguments

 `qs` The stress applied by the footing onto the surface `B` The footing's width (in meters) `L` The footing's length for a rectangular footing (in meters) `z.end` The depth to which calculate the stresses (in meters) `footing` Type of footing for which to calculate the stresses (Default is "strip")

## Details

The stresses are calculated using the solutions from Boussinesq. The parameter `L` only applies for rectangular footings, otherwise is not considered, thus the default value of `NULL`. For rectangular footings the length (`L`) can be varied, while for the other footing shapes the width `B` can be varied. For circular footings the width is equal to the radius (`B=R`)

## Value

A stress distribution plot for the desired footing

## References

Holtz, R. D., Kovacs, W. D. & Sheahan, T. C. (2011). An Introduction to Geotechnical Engineering. Prentice Hall.

## Examples

 ``` 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18``` ```# Singular value of B for a strip footing qs = 1 B = 1 L = NULL z.end = 8 induced_stress(qs, B, L, z.end) # Different values of B for a square footing qs = 1 B = c(1, 2, 4) L = NULL z.end = 8 induced_stress(qs, B, L, z.end, footing = "square") # Different values of L for a rectangular footing qs = 1 B = 1 L = c(1, 2, 4) z.end = 8 induced_stress(qs, B, L, z.end, footing = "rectangular") ```

maxgav13/GMisc documentation built on Nov. 6, 2018, 2:50 a.m.