Mechanical & Physical Testing
Mechanical testing and characterization of non-metallic materials is an area of true expertise at Argen. We have multiple test frames with load capacity up to 1,000 kN (220,000 lbf). An array of grips, fixtures, and custom jigs enable an extensive suite of mechanical testing, including tension, compression, flexural, peel, tear, puncture, and more. Many of these can be performed from -80 °C to +300 °C. We are equipped with both contacting and non-contacting strain measurement, enabling accurate deformation measurement and calculation of properties such as modulus and yield. Engineers at Argen have an in-depth understanding of material mechanics and can help you understand your materials’ behavior. Physical characteristics such as abrasion and impact resistance, coefficient of friction, and others are also commonly assessed.
Advanced Mechanical Characterization
Argen is dedicated to advanced mechanical characterization of materials, applying tools and expertise to characterize materials to supply inputs for Finite Element Analysis for example. These capabilities include volumetric compression, planar tension (an approach to pure shear), and balloon inflation (an approach to bulk modulus). In much of this work we employ a state-of-the-art multi-camera video deformation measurement system coupled with Digital Image Correlation software and robust computing power to deliver full-field, 3-dimensional measurement of displacement and strain. We can extract Cauchy or Lagrangian strain tensors, or place virtual strain gauges anywhere on the surface of the specimen to extract a local stress-strain curve, for example. This capability is applied to generate more complete and more accurate data for numerical modelling, or to verify predicted deformation of completed parts or assemblies.
Dynamic Mechanical Analysis
We apply Dynamic Mechanical Analysis (DMA) to characterize the viscoelastic nature of polymers, decoupling storage and loss components. Argen has also developed creep methods for DMA, enabling determination of long term creep behavior in hours rather than months through use of the time-temperature superposition principle.
Argen experts employ many other testing capabilities such as coefficient of friction (static, dynamic, lubricated, etc.), abrasion resistance (Taber, DIN), compression set, and impact resistance (notched Izod) for material selection, qualification, and competitive benchmarking.
- Compressive Stress Relaxation (ISO 3384-1, ISO 3384-2, ASTM D6147)
- Thermal expansion
- Coefficient of friction (ASTM D1894, ISO 15113)
- Izod impact (ASTM D256, ISO 180)
- Abrasion resistance (ASTM D3389, ASTM D5963)
- Elevated and sub-ambient temperature testing
- Compression set (ASTM D395, ASTM D1414, ASTM D1229, ISO 815, ISO1653)
- Flexural (ASTM D792)
- Peel (90 and 180; ASTM D429, ISO 813)
- Planar tension
- Shear (quad lap; ASTM D429)
- Ring shear
- Volumetric compression (ASTM D575)
- Cyclic testing
- Tear (Die C, trouser, trapezoidal) (ASTM D624, ASTM D751)
- Simple tension and compression (ASTM D412, ASTM D638, ASTM D1414, ASTM D695)