Test configuration
Needle
Needle is a fine slender piece of metal with a sharp point at one end.
About this material
Needle is a fine slender piece of metal with a sharp point at one end. Mechanical properties of needles need to be assessed to precisely determine their specifications before their use in research or by health care professionals. For example, mechanical tests can evaluate a needle's sharpness, the friction force during insertion in specific material, flexibility, etc.
Test configurations (6)
Test configuration
Temperature Control
Test configuration
Cantilever Bending
Test configuration
Puncture
Test configuration
External Analog Sensors
Test configuration
Camera Feed
Related resources (3)
FAQ
What is Young's modulus E?
Intrinsic mechanical property of a material independent of its geometry. From the slope of the stress vs. strain graph during an unconfined compression and considering the geometry of the sample, we can calculate the Young's modulus.
What is the elastic modulus in bending?
The elastic modulus in bending Ef : It is an intrinsic mechanical property of a material expressing the tendency of this material to bend. From the slope of the stress vs. strain graph during a flexural test and considering the geometry of the sample and the testing configuration (3-point bending), we can calculate the elastic modulus in bending. Although theoretically equivalent to the Young's modulus, these values may be different in experimental testing.
What is the maximum flexural strength?
The maximum flexural strength (σf ) is a material property defined as the stress in a material just before it yields (or plastic deformation) in a flexion (bending) test. The maximum flexural strength is independent of the samples shape and testing configuration (3-point bending). It represents the highest stress experienced within the material at the moment of yield.