High Strain Rate Experiments Home | Testing Services | Training Courses | Technical Downloads | About Axel | Contact Axel High Strain Rate Experiments Introduction Plastics..., elastomers and even steel may significantly change properties with the rate of loading. Axel Products has test systems capable of testing at strain rates as high as 100 s-1 depending... on the material and the conditions. Special loading systems, test frames, gripping, transducers and signal conditioning are needed as strain rates increase. The rate sensitive...

deformation and strain rate sensitivity requiring customized material model development and rigorous experimentation. There are a few experiments that are particularly useful... in characterizing plastics for analysis. They are simple tension with transverse strain measurement for elasticity and Poisson's ratio determination, simple load and unload experiment... to separate the plastic and elastic strain components and thermal expansion as a function of temperature. Several of these experiments are outlined below. Typical Plastic Experiments...

of obtaining static stress and strain data or cyclic fatigue data can be challenging. Careful gripping and strain measurement are critical parameters for success. Physical Test... Results from Load and Unload Straining of a Shape Memory Alloy Wire at 37C Related Information Testing Fine Wire(PDF) Other Downloads Pricing Wire Specimen with Optical Strain...

Failure in rubber components is difficult to understand. The strain at failure in a tensile test can be at several hundred percent yet the parts in service can fail at strains... provide valuable design maximum strain and maximum stress. Fatigue of elastomers is more complex and dependent on many factors. Through a combination of testing and material related... fatigue analysis, one can generate a map of these dependencies. Testing isn t a matter of cycling tensile specimens under all conditions. Generating elastomeric strain-life (s-n...

Elastomer and plastic response to vibration and short time events depends significantly on the mean strain condition and amplitude of the perturbation; perhaps more than the rate... to a particular strain and held, the stress in the elastomer will decrease over time. This decrease in stress over time is referred to as stress relaxation. This reduction in stress... can be a significant fraction of the initial stress. For many elastomers, the normalized shape of the stress-time function is relatively insensitive to the absolute strain level...