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Applications · Tipper Chassis Fatigue Analysis

The plate and welds of your chassis, justified by the declared service load

Every extra kilogram of bodywork reduces the declared payload. Knowing what thickness each chassis zone needs allows comparing steel and thickness variants with their calculated fatigue life. If a weld has failed under warranty, the analysis shows which welds are most loaded under the declared load.

Propose a part for a pilot case
Demonstration on generic geometry: tipper chassis with the load stated as an assumption and weld fatigue with finite elements. (1/2)Demonstration on generic geometry: tipper chassis with the load stated as an assumption and weld fatigue with finite elements. (2/2)
Demonstration on generic geometry: tipper chassis with the load stated as an assumption and weld fatigue with finite elements.

What we calculate

  • Weld fatigue in chassis (FEM)

    Stress and fatigue of the welds at longitudinal members, cross-members and ribs under the service load you specify, to EN 1993-1-9 and IIW.

  • Change of steel grade

    If the part changes steel (S235 to S355, S355 to S690), we calculate the fatigue life with the new material and the thickness that maintains the design life.

Standards we work with

  • EN 1993-1-9 . IIWWe calculate to: fatigue of welded joints in chassis and bodywork
  • Reg. (EU) 2023/1230Strength and fatigue analysis is part of the technical file the manufacturer must hold (applicable from 20 January 2027)
  • What data do you need for a tipper or trailer?

    Drawings in DXF or STEP, current steel grade and thicknesses, the declared payload and the usual duty cycle (estimated number of load cycles over the vehicle's life).

  • We have no 3D drawings, only 2D paper plans.

    We work with 2D DXF drawings and, if needed, direct measurements from the prototype. We generate the FEM mesh from the drawings you provide.

  • Does the report serve for the technical file under the new Machinery Regulation?

    Strength and fatigue analysis is part of the technical file the manufacturer must hold under Regulation (EU) 2023/1230, applicable from 20 January 2027.

  • Can you also calculate fatigue if we switch to a high-strength steel?

    Yes. If you want to move to S355, S690 or another steel with a higher yield strength, we calculate the fatigue life with the new material and tell you which thickness maintains the design life.

Pilot case

Propose a part for a pilot case

Send us the drawing or a description of the part, its material and how it works. We will tell you what we can calculate, with which data and in what time frame. The pilot case ends with a signed report.

Write to ingenieria@zytel.es

Phone: 976 14 18 19