# Radial hole in a hollow or solid circular shaft for elastic stress, elastic stress, torsional loading

## Values for calculation

## Calculation

### Coefficient $ C_1 $

### Coefficient $ C_2 $

### Coefficient $ C_3 $

### Coefficient $ C_4 $

### The elastic stress concentration factor

## Requirements

$$d/D \le 0.9$$**On this page**