FKM Fracture Mechanics

Forschungskuratorium Maschinenbau
/ Research Committee Mechanical Engineering

23 October 2024, online

Language: English

This training course covers the ”FKM-Guideline Fracture Mechanics” for static and cyclic loading. Besides the detailed assessment procedures, background on the individual topics will be given for better understanding about the procedures. The course is aimed at newcomers in the field as well as experts interested in the concept of the guideline.

The FKM guideline is a standard developed by the Forschungskuratorium Maschinenbau (Research Committee for Mechanical Engineering) – FKM - for static and cyclic strength verification. Due to its broad applicability, the strength verification has become widely used in mechanical engineering and other industries.

Course Contents

Introductory remarks
Background information and overview of the guideline
Basics on fracture mechanical concepts
Linear elastic vs. elastic-plastic fracture mechanics
Failure assessment diagrams
Static vs. cyclic loading
Assessment concept of the guideline

Input quantities and modelling
Defects
Stress state
Material properties

Computational Procedures
Static loading
Cyclic loading
Advanced topics

Proof concept
Safety margins and reserve factors, sensitivity analysis, probabilistic analysis
Applications

Course Agenda

9:00-10:30

Introductory remarks
Background information and overview of the guideline
Basics on fracture mechanical concepts
Linear elastic vs. elastic-plastic fracture mechanics
Failure assessment diagrams
Static vs. cyclic loading
Assessment concept of the guideline

11:00-12:30

Input quantities and modelling
Defects
Stress state
Material properties

13:30-15:00

Computational Procedures
Static loading
Cyclic loading
Advanced topics

15:30-17.30

Proof concept
Safety margins and reserve factors, sensitivity analysis, probabilistic analysis
Applications

PSE

PSE Competencies addressed by this training course

MASco5	Discuss the general issue of scatter in material properties relevant to your analysis and simulation and how this is allowed for.
MASco23	Discuss common material characteristics and typical manufacturing related flaws in other processes relevant to your industry sector.
FATco1	Discuss the initiation, propagation and fast fracture stages of Fatigue in metallic materials.
FATco12	Discuss how temperature, plate thickness and modulus effects are typically handled in relevant design standards and codes of practice and explain why this is necessary.
FATap2	Carry out elastic fatigue assessment using design standards and code guidelines for components and structures including any special procedures for ancillary components such as bolts,
FATap6	Employ a finite element analysis system for the fatigue analysis of a component or structure.
FATsy5	Specify appropriate idealisation(s) for welds, which are consistent with the objectives of fatigue analyses and available computing resources.
FAFMkn2	Summarise the scope of fracture mechanics for the different types of cracks and material situations
FAFMco2	Show how the geometry of a general 3D crack profile may be sketched and explain what the conditions of plane strain and plane stress represent
FAFMco4	Describe the three modes of fracture with respect to a point on a general 3D crack profile, and discuss the angled crack problem in the 2D plane
FAFMco10	Discuss the main components required of a FE model to represent the main features of a cracked structure, to include the discrete crack geometry, material properties and mechanical/thermal loads
FAFMco32	Describe the features of a fracture assessment diagram (FAD) and how it is used
FAFMco33	Explain Neuber's Rule.
FAFMco37	Describe a typical welding residual stress distribution for a common welded joint.
FAFMap5	Use available design standards or code of practice Algorithms or Flowcharts for flaw assessment in components.
FAFMan1	Analyse the results from fracture mechanics analyses of typical components and determine whether they satisfy requirements.
FAFMev1	Select appropriate FM strategies.
PLASap2	Use FEA to determine Limit Loads for a range of components.

Trainer

Prof. Dr.-Ing. Klemens Rother
University of Applied Sciences Munich, Germany

Engineering Degree in Mechanical Engineering / Doctoral thesis in analytical fatigue assessment of multiaxial, non-proportional stress states

Prof. Rother has over 20 years of industrial experience in responsible positions: design and qualification in transportation systems, pressure vessel design, consulting in computational engineering, software development and development and implementation of knowledge based systems.

Since 2008 Professor at Munich University of Applied Sciences
Since 2019 Founding member of the Institute of Material- and Building Research, IMB, Munich University of Applied Sciences
Teaching: Mechanics of Materials, Lightweight-Design, Fatigue&Fracture, Conceptual Desing of Mechanical Structures
Fields of Research: Structural Integrity, CAE, Conceptual Design and CAE in the Early Phase, Fatigue Analysis, Welded Structures
Head of Masters Program Computional Engineering, Munich University of Applied Sciences
Gründungsmitglied des Promotionszentrums für Integrales Bauen an der Hochschule München
Founding member of the Doctoral Research Center of Integrated Buildings (PZIB) at Munich University of Applied Sciences

More information:
Prof. Dr.-Ing. Klemens Rother (mwn.de)
https://orcid.org/0000-0002-9643-4967

Organisation

Duration
9:00 am - 5:30 pm
Login phase from 8:30 am.
Time zone: CET (Central European Summer Time), UTC+2 (Berlin)

Language
English

Course Fee
Non NAFEMS members: 700 Euro / person*
NAFEMS member: 990 Euro / person*
Included in the fees are digital course notes in English language and a certificate.
* plus VAT if applicable.

NAFEMS membership fees (company)
A standard NAFEMS site membership costs 1,365 euros per year, an academic site and entry membership costs 855 euros per year.

Cancellation Policy
Up to 6 weeks before course starts: free of charge;
up to one week before: 75 %;
later and no show: 100 %.

Course cancellation
If not enough participants we keep the right to cancel the course one week before. The course can be canceled also in case of disease of the speakers or force majeure. In these cases the course fees will be returned.

Organisation / Contact
NAFEMS
e-mail: roger.oswald@nafems.org

Accreditation Policy

The course is agreed and under control of NAFEMS Education and Training Working Group (ETWG).