Mechanical and physical properties help ascertain a material’s identity, ensure its quality, determine how it will perform when subjected to various environments, and enable informed design. Changes in these properties over time or as a result of exposure to chemical, thermal, or mechanical stresses are critical to understanding how a material will perform in applications.
Properties such as modulus, tensile strength, and flexural strength are determined by generating stress-strain curves in various modes of deformation. Tear strength is typically determined by uniaxial tensile deformation of specimens designed to control tear initiation and propagation. Argen is equipped to test a wide variety of materials including elastomers, thermoplastics, fabrics, composites, and many things in between. From typical tensile testing to custom puncture rigs to planar tension (approximation of pure shear), Argen experts can mechanically characterize your material in the most appropriate manner. Our frames are also capable of cyclic testing as well as moderate duration creep and stress relaxation testing. We can perform many of these tests at temperatures from -100 °C up to 250 °C.
Mechanical testing is a common means of quality control, is often used to compare aged versus un-aged materials, is critical to design efforts, and can contribute to failure analysis efforts.
Because we have a variety of load frames (up to 250 kN / 56,000 lbf) and fixturing, we are also capable of non-conventional mechanical testing, such as determining the shear strength of an array of brass set screws, to pre-tensioning cables, to subjecting small tool assemblies to significant loads.
Abrasion testing is an approach to characterize the wear resistance of compounds subjected to relative movement against other surfaces or against fluid borne particulate. This testing can be used to select from amongst available compounds, to aid in compound development for applications where abrasion is an identified stress, and for quality control. Argen is equipped to perform Taber abrasion (ASTM D3389) and DIN abrasion (ASTM D5963) testing.
Impact testing is a time-honored destructive testing methodology. This testing is often used in quality control, material comparisons, and can also contribute to failure analysis. Argen performs notched Izod Impact Testing as described in ASTM D256.
Compression set testing of ealstomers gives insight into stress relaxation behavior and is related to an ealstomer’s ability to maintain a seal over time. This technique is often used for quality control and compound development efforts. Argen performs compression set testing as described in ASTM D395 and ASTM D1414.