Test configuration
Plastic and Polymer (Rod)
Plastic and polymer are synthetic materials used in a wide range of applications.
About this material
Plastic and polymer are synthetic materials used in a wide range of applications. A wide variety of test configurations are compatible for the mechanical evaluation of material in the shape of a rod (straight cylindrical bar). Mechanical properties of plastic and polymer rods are assessed for different end-use application.
Test configurations (15)
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Unconfined Compression
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Indentation (Stiffness)
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Friction
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Torsion
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Dynamic Mechanical Analysis
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Impact
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Indentation (Hardness)
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Confined Compression
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Temperature Control
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Cantilever Bending
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Fracture
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External Analog Sensors
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Digital Image Correlation (DIC)
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Camera Feed
Case studies (1)
Related resources (5)
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 elongation at rupture?
The amount of uniaxial strain at fracture including both elastic and plastic deformation.
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 ultimate tensile strength (tensile strength)?
Ultimate tensile strength is the maximum stress developed in a material before rupture in a tension test.
What is the yield strength?
The stress at which a material starts to show plastic deformation.
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.
What is the section modulus?
The section modulus Z is calculated as the ratio between the area moment of inertia and the distance from the centroid to the top or bottom edge of the sample (d/2).
What is the elasticity?
Property of a material to deform under load or strain and to return to its original shape when the stress is released.
LAB MODULE – Unconfined Compression of Hydrogel Disks – Student Version