# Two U-notches in a member of rectangular section for elastic stress, out-of-plane bending

## Values for calculation

## Calculation

### Coefficient $ C_1 $

### Coefficient $ C_2 $

### Coefficient $ C_3 $

### Coefficient $ C_4 $

### The elastic stress concentration factor

## Requirements

$$ 0.25 \le h/r \le 4.0 $$**On this page**