Materials testing of metallic
Materials and compounds
IMA Dresden is an international test service provider for material testing and component testing.
As a manufacturer or processor of materials, we will provide you with comprehensive engineering
expertise regarding resistance, strength and reliability studies on standardised samples up to, and
including, complex components. Verifying the reliability and safety of the material for the service life
of a component with a wide variety of types of load is a demanding task – for us it is a core competence.
Positioned between research and industry, we dedicate ourselves, for example, to face Questions about
the crack propagation behaviour with regard to lightweight construction materials or the comparative
characteristic profile of parts made from additive and conventional manufacturing.
Our engineers will be pleased to support you during the implementation for your testing programs as
well as assisting with the standardisation, approval and certification of materials or manufacturing processes.
We are also available to assist you throughout the entire testing process. Starting with consulting, test
planning and manufacturing samples through to testing and on to the finished test report and supporting
you moreover with the optimisation process. The test spectrum of our accredited laboratories covers
all industrial sectors.
We work according to German and international standards and guidelines (DIN, ASTM, ISO, etc.),
or in accordance with factory settings. Our test laboratories are accredited according to
DIN EN ISO/IEC 17025 for mechanical and technological testing and moreover are accredited for
the business fields of “Material Testing of Metallic Materials” and “Material Testing of non-metallic
materials according to SAE Aerospace Standard AS7003 by NADCAP” (National Aerospace and Defence
Contractors Accreditation Programme).
Damage analysisRead more
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Material Testing for Plastics and Composite MaterialsRead more
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Investigation of the material properties
We assume the comprehensive determination for your material parameters as well as evaluating the
loading capacity of metallic materials, jointed connections or hybrid material combinations.
Depending on requirements or specifications involved, tests can be executed at lower and higher
temperatures as well as media influence supported. We provide comprehensive standard testing and
measuring equipment for material and component testing.
You can also benefit from our years of experience in design and application of special test rigs.
Please contact us if you Need a customized solution for your testing requirements. Our experienced
engineers are at your disposal for advice. The preparatory discussions are of course free of charge.
At the beginning of a design phase, the question of the choice of material selection is raised comes to the fore.
The selected material forms a basis and must withstand a wide variety of the most diverse and complex stresses
in later use. Materials testing offers you the an ideal basis for determining the material performance capacity
that the material must have provide for your project.
Testing under static loading
- Tensile test
- Fracture mechanics / fracture toughness
- Compression test
- Bending test
- Torsion test
- Shear test
- Stress rupture test
- Bearing test
- Hardness test (Brinell, Knopp, Rockwell, Vickers, UCI)
Testing under cyclic loading
- Fatigue test
- High Cycle Fatigue (HCF)
- Low Cycle Fatigue (LCF)
- Thermal-Mechanical Fatigue (TMF)
- Determination of cyclic deformation curves
- Determination of Wöhler curves (S-N Curves)
- Fracture mechanics / determination of fatigue crack growth rates and threshold value
Impact load testing
- Notched-bar impact bending test
- Pellini test
- Impact / Crash Testing
Our laboratory provides modern equipment for the increasingly important investigations of energy absorption
and crash behavior. In addition to the determination of characteristic values under quasi-static load, we also
carry out tests under dynamic load for you.
Drop weight test
- Drop weight mass: ≤ 200 kg
- Maximum working capacity: ≤ 19 600 J
- Maximum impact velocity: ≤ 18.3 m/s (66 km/h)
- Drop weight with 3-channel registration of the force signals
- 200 kHz sampling rate per channel
- Incident times up to 650 ms
- 6-channel strain and elongation measurement with strain gauges
- High-speed digital camera with video optical plastic deformation measuring
- Standard image rate 4000 f/s
Time-related progressions for force, distance, speed and acceleration can be measured or calculated.
The available testing equipment enables static residual strength tests (strength tests) to be executed
subsequently after impact damage.
Drop test towers
- Maximum impact energy: 400 J
- Impact speed: 9 m/s
- Variable sample geometries testable
Testing of Surface
- Measurement of roughness characteristics
- Testing of fasteners
- Soldered, brazed and welded joints
- Riveted and adhesive bonded joints
- Testing of parts and components
Thermal-mechanical fatigue tests (TMF)
Our laboratory is equipped with higher-level state-of-the-art technology for investigating the Fatigue
behaviour under mechanical loads with simultaneously accompanying thermal load profiles.
Implementation of the tests will be executed in accordance with the internationally recognised
“Code of Practice for Strain Controlled Thermal-mechanical Fatigue Testing”.
- Servo hydraulic universal testing machinery
- High-temperature strain and elongation transducer
- Maximum force: +- 100 kN (dynamic)
- Test frame: +- 250 kN
- Temperature range: up to 1200°C
- Usable space diameter/usable space height: 60 mm/120 mm
- Usable space diameter/usable space height: 24 mm/150 mm
Fracture mechanical testing
In general fracture mechanical investigations enable a quantitative description of the material damage
behavior caused by crack initiation and crack propagation by means of continuum mechanical failure analyses.
In order to fully exploit the potential of new or already existing engineering materials, it is necessary to apply
already existing calculation and testing methods or to develop new testing methods which can represent the
behavior of a component under real-time operating loads and stresses to the greatest possible extent and
ensure sufficient safety against the various possibilities of failure.. Especially in view of the increasing safety
requirements, but also with regard to the economic efficiency and conservation of resources, an exclusive
design of components and structures on the basis of classical science of strength of materials
(i.e. without considering defects in the material or component) is no longer up-to-date.
On the contrary, cracks which could occur either as a result of the manufacturing process or by stress or
during operation must be considered in the design. The evaluation of cracks and/or crack-like imperfections
in construction parts and components is indispensable for determination of fracture mechanical parameters
such as, for example, the threshold value behavior or the crack resistance behavior as the fracture mechanical
analysis of fictional and real existing cracks must be increasingly considered as an additional safety factor
in the component design process.
We can determine the following characteristic values and parameters for you according to the concepts of
linear elastic fracture mechanics (LEFM) and elastic-plastic fracture mechanics (EPFM):
|Crack initiation / fracture with static stress or load|
|Fracture toughness (LEFM); EDZ|
ASTM B649; ASTM B909
ASTM E399; DIN EN ISO 12737
|Fracture toughness (FFM)|
|Physical crack initiation||ISO 12135|
|Technical crack initiation|
|Stable crack propagation with static stress or loading|
|Crack resistance curve||ASTM E1820; ISO 12135|
|Crack resistance curve with small area flow||ASTM E561|
|Crack growth with cyclic stress or loading|
|Crack growth rate||ASTM E647; ISO 12108|
Screwed connection testing – Junkers Test
In order to meet the requirements for stress and function-oriented bolted joints for a wide range of
components made of different materials, it is necessary to take a holistic view of bolting as a unit of
construction, joining process and materials.
- Quasi-static testing up to 2MN
- Vibration resistance testing
- Shear resistance testing
- Test bench in accordance with DIN 65151 for the determination of the loosening rotation
behavior according to DIN 25201-4, Appendix B (Junker test)
- Nominal sizes M16 to M39 (different sizes upon request)
- Clamping length ratios KLV 1.7; 2.2 and 3.0
- Torque/ pre-tensioning force test according to DIN EN ISO 16047
Environmental influences and chemical loads during the production and application of your materials and
components can affect the quality of the products.
In our test laboratory, we determine the loading capacity of the test objects under real and extreme conditions
in accordance with generally accepted standards or to your individual test specifications.
- Steel (intergranular corrosion: e.g. Huey test or Strauss test)
- Aluminium materials (intergranular corrosion, e.g. ASSET test)
- Aluminium materials (exfoliation e.g. NAMLT test)
- Metals (stress corrosion cracking)
- Metals for aviation (intergranular corrosion, pitting corrosion)
- Mechanical-technological tests with media
Our machining center enables us to produce samples according to conforming standards and your
requirements. From the raw materials, semi-finished products and components, we are able to
manufacture high-quality test specimens according to national and international regulations and/or
according to your specifications, irrespective of whether this relates to high-strength metallic materials,
ceramics, plastics or composite materials.
- Wet and abrasive cutting methods
- Water jet cutting
- Automated grinding, turning, milling and drilling machinery
- EDM (electrical discharge machining)
- Blast cleaning
- 3D Coordinated measuring
- Application of strain gauges and crack measuring foils
Non-standardised Tests, and Special Tests
We are well known for being able to master every technical testing challenge. Our experts from special
material test unit possess a high level of expertise for non-standard materials and component testing.
You describe the intended function of the parts – we develop the testing concept, organize the necessary
test and measurement technology, take care of the calibration of the sensors, implement the testing and
provide you with the final test report. Flexible accreditation from DAkkS (German Accreditation Body)
enables us to test materials and components according to different standards, as well as developing
new testing procedures
You are always welcome to send us requests regarding specific tests which you have not found in our
test portfolio. We will investigate whether we can support you in the requested test.