Optimal design of permanent connections

Welded joints, soldered & bonded joints

MDESIGN mechanical

Welded connections

Compared to other sectors, mechanical engineering is usually responsible for verification itself, i.e. it is often not regulated. Nevertheless, the calculation is part of the verification obligations of the engineer and designer.

MDESIGN offers a wide range of calculation methods that are also recognized by testing institutes:

  • Calculations according to data sheet DVS 705 and DVS 1612
  • Static strength verification, dynamic strength verification
  • Access to database for standardized profiles

Although stress determination is not part of the calculation standards, it is available in MDESIGN. Stresses are determined according to the nominal stress concept for known cross-sections. Only the weld seam itself is considered, the calculation of the base material is only possible according to the FKM guideline in the calculation module "General component strength verification".



To the expert module

  • Calculations for welded components
  • Consideration of leading calculation principles
    (DVS 0705, DVS 1612)
    for static and dynamic loading
  • Additional calculations according to FKM guideline
  • Additional calculations according to Eurocode 3
  • Database with relevant material properties
    for steels and aluminum materials
  • Verification of welded joints
    in mechanical engineering
MDESIGN mechanical

Riveted and soldering joints

In addition to bolted and welded joints, soldered and riveted joints are also suitable for special applications. Based on well-known technical literature, MDESIGN provides results for the soldered and riveted joints modules:

  • Number of rivets required
  • Required diameter
  • Required length of rivets
  • Load capacity
  • Tensions


MDEISGN Mechanical

Bonded joints

If it is necessary to combine components without metallic connections, bonding can be a constructive alternative.

Characteristic values for the adhesives to be used are required for the selection and calculation of the strength.

MDESIGN provides a database with more than 220 adhesives from numerous manufacturers. The advantages of low damage or weakening of the components to be joined can also be decisive for the shape of the joint.

The following forms of stress can be selected:

  • Torsional load according to VDI 2229
  • Shear load according to VDI 2229
  • Tensile load according to VDI 2229
  • Access to database for characteristic values of well-known adhesive manufacturers, e.g. E.Epple, Henkel Loctite, UHU, Weicon


Further component calculations
with MDESIGN mechanical

Shafts, axles, hubs


Screw connections, bolts & pins


Gearing, gears, drive technology


Roller & plain bearings, linear technology


Springs and damping elements


Beams and frames


Our entire product range

Discover all the possibilities with our basic and expert modules


Our services at a glance

MDESIGN Services

Our services not only offer you many years of experience and expertise in calculation, simulation and software development, we are also implementing more and more engineering projects using machine learning and artificial intelligence.
Our services at a glance
Know-how that gets you ahead

MDESIGN seminars

Practically relevant further training courses for specialists in design and product development for the safe design of machine elements in accordance with recognized guidelines and standards.
Our seminars at a glance