## Scarfed Joint Stress Calculation

This toolbox calculates the nornal and shear stresses and the joint area in a scarfed joint for a given joint angle

Free

### Details

Release

Last Update

Current version

Price

Licence

Language

01.03.2016

01.03.2016

1.0

Free

MIT-Licence

English

01:21

### Screenshots

Set up of the scarfed Joint Stress Calculation

Normal and Shear Stresses in scarfed joints for different joining surface angles

### Pictures

definition of the angle alfa

• In timber construction, but also in the fiber-reinforced composites, adhesives or are adhesive joints often executed as scarfed joint. Characteristic is the long sloping contact area between the adherends. At large thicknesses the scarfed joint can shorten by being divided. The result is a dovetail joint.
The stress analysis in the adhesive layer can be executed as stress transformation into a new coordinate system. The used static relationships are valid only for a homogeneous structure with the same joint partners. When joining parts of different axial stiffness are used, the problem is static vague and should be analyzed by the finite element method.

The normal Stress in the adhesive layer results to:

$\sigma_{ \alpha }=\frac{ F_{ x } }{ b*t }*cos^{ 2 }\alpha$

The shear stress in the adhesive layer results to:

$\tau_{ \alpha }=0.5*\frac{ F_{ x } }{ b*t }*sin(2\alpha)$

• ### Name

engidesk GmbH

Since the company’s formation as RWTH Aachen university spin-off in 2012, engidesk GmbH represents a modern and dynamic software house based in Aachen, Germany. The highly committed team of young professionals around the founders Dr. Lars Lambrecht and Marc Branscheid constantly enhances its uniquely innovative development environment for research and development engineers. The engidesk software enables companies & research facilities to make better use of their technical know-how by harmonising and standardising complex calculations across work groups and entire companies. Unique and easy-to-use interfaces allow for the seamless combination and merger of any calculation know-how to single, directly applicable modules – regardless of the original developing system. Above that, the engidesk market place provides knowledge holders with the possibility to commercialise valuable know-how by putting up problem oriented – all compatible – calculation sequences for sale.