Consulting engineering firm for materials science and finite element simulation with its own material model MF GenYld + CrachFEM
MATFEM Ingenieurgesellschaft mbH
MunichNew on Amplifa
About MATFEM
MATFEM is a consulting engineering firm based in Munich specializing in materials science and finite element simulation. The company develops and licenses the material and failure model MF GenYld + CrachFEM for explicit FEM simulations of sheet metal forming and crash, conducts test programs with partner laboratories through its CommonLab division, and creates material cards for commercial simulation codes from them. The FEM Services division performs simulations and implements new modeling techniques, including for sheet metal forming, crash and additive manufacturing. Typical materials are cold-rolled steels, aluminium and magnesium alloys, die-cast alloys, polymers, fibre composites and additively manufactured metals. Customers come from the automotive, aerospace, sheet metal forming, medical technology and plastics processing sectors. The company is ISO 9001 certified and serves more than 100 customers worldwide.
- Site
- München
- Processes
- Material characterization / creation of material cards for FEM, Finite element simulations (FEM Services, explicit/nonlinear, sheet metal forming, crash), Development and licensing of the material model MF GenYld + CrachFEM, Calculation of forming limit diagrams with CrachLab, Material modeling (MF GenYld + CrachFEM), Material characterization / material cards (CommonLab), Finite element simulations (FEM Services), Test programs with partner laboratories
- Materials
- Cold-rolled steels, High-/low-pressure die cast alloys, Al or Mg extrusion profiles, Unreinforced polymers, Short-fibre reinforced polymers, Endless-fibre UD composites, Endless-fibre fabrics, Plywood
- Certificates
- ISO 9001
- Founded
- 1993
- Industries
- Automotive, Aerospace, Sheet metal forming, Crash simulation, Additive manufacturing, Medical technology
- 01
Consulting on the simulation problem and relevant physical effects
- 02
Selection of the suitable material model
- 03
Definition of a modular test program
- 04
Execution of the tests with partner laboratories
- 05
Identification of the material parameters with proprietary software
- 06
Creation and validation of the material cards in the FEM solver
- 07
FEM simulation and evaluation of the failure risk
Materials and Processes
Material and failure model
Modular elasto-plastic material and failure model for explicit FEM solvers, coupled to LS-DYNA, Radioss and PAM codes.
Software for FLD calculation
Calculates forming limit curves (FLD) from the work-hardening behavior of sheet materials.
Material characterization
Creation of individual material cards from defined tests in cooperation with partner laboratories.
Finite element simulations
Explicit, nonlinear simulations of forming and crash with special methods for data preparation.
Material browser and converter
Graphical browsing, converting and batch conversion of material cards between formats and unit systems.
Cold-rolled steels
Central material in sheet metal forming and crash simulation.
Die-cast alloys
High- and low-pressure die-cast alloys, modeling of porosity and failure risk.
Al/Mg extrusion profiles
Modeling of aluminium and magnesium profiles, among others validated on BMW aluminium extrusions.
Polymers and fibre composites
Unreinforced, short-fibre-reinforced and continuous-fibre-reinforced polymers including organosheets and UD composites.
Additively manufactured materials
Orthotropic material models for additively manufactured metals and polymers.
Glass, ceramics, plywood
Brittle failure via stress-based fracture criteria; for glass and ceramics the only failure mode.
Locations
Munich
DEHeadquarters, engineering office, software development, material characterization and FEM services
- Materials
- Steel, castings, aluminium, plastics, AM materials
- MF GenYld + CrachFEM
- CrachLab
- MF View
- MF Crypt
- MF Orient
- MF Interproc
- LS-DYNA
- PAM-Stamp / PAM-Crash / Radioss
- MAGMA® (casting process simulation)
Components
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Material characterization / creation of material cards for FEMTesting | – | – | – | – | Cold-rolled steels, High-/low-pressure die cast alloys, Al or Mg extrusion profiles, Unreinforced polymers, Short-fibre reinforced polymers, Endless-fibre UD, endless-fibre fabrics, Plywood, Glass & ceramics, 3D-printed materials (AM) |
| Finite element simulations (FEM Services, explicit/nonlinear, sheet metal forming, crash)Engineering | – | – | – | – | Metals, Polymers, Composites, Die-cast alloys |
| Development and licensing of the material model MF GenYld + CrachFEMEngineering | – | – | – | – | Metallic materials, Polymers, organic composites with glass-fibre fabric, short-fibre-reinforced thermoplastics, additively manufactured metals and polymers |
| Calculation of forming limit diagrams with CrachLabEngineering | – | – | – | – | Sheet materials |
9 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Software / material model | MATFEM MF GenYld + CrachFEM | – | – | – | Munich |
| Software (FLD calculation) | MATFEM CrachLab | – | – | 2000 | Munich |
| Software (material browser/converter) | MATFEM MF View | – | – | – | – |
| Software (encryption) | MATFEM MF Crypt | – | – | – | – |
| Software (orientation distribution) | MATFEM MF Orient | – | – | – | – |
| Software (element state data) | MATFEM MF Interproc | – | – | – | – |
| FEM solver (coupled) | Ansys/LST LS-DYNA | – | – | – | – |
| FEM solver (coupled) | ESI PAM-Stamp / PAM-Crash / Radioss | – | – | – | – |
| Casting process simulation (coupling) | MAGMA MAGMA® | – | – | 2006-2010 | – |
Additional services
Reference customers
Quality
MATFEM is ISO 9001 certified (DEKRA) for material characterization and specialized FEM projects. All laboratory data, reports and parameter identifications are handed over to the customer completely and transparently.
| Evidence | Munich |
|---|---|
| ISO 9001 |
History
- 1993
Foundation of the MATFEM engineering office Dr. H. Gese by Dr. Helmut Gese (May); Gernot Oberhofer joins in October
- 1998
Start of the material card characterization service (later CommonLab); Prof. Harry Dell joins the company
- 1999
Renaming to MATFEM Partnerschaftsgesellschaft Dr. Gese & Oberhofer
- 2000
Publication of CrachLab; implementation of user material models for LS-DYNA
- 2003
CrachFEM implemented by ESI in PAM-Stamp and PAM-Crash; validation at EuroPAM 2003
- 2005
Validation on BMW aluminium extrusions (Hooputra et al.); CrachFEM extended with MF GenYld
- 2006
Start of the EU research project NADIA (2006–2010) on die-cast alloys, cooperation with MAGMA
- 2010
1st MATFEM Conference at Schloss Hohenkammer (every two years since then)
- 2015
MF GenYld + CrachFEM with modules for organosheets and UD composites
- 2018
Development of orthotropic material models for additively manufactured metals and polymers (2018–2021)
- 2022
Conversion into a GmbH (limited liability company)
- 2023
30th company anniversary; more than 100 customers