Uniaxial Compression
Uniaxial Compression - Related Videos
07:52
Mouse Lumbar Vertebra Uniaxial Compression Testing with Embedding of the Loading Surface
0 Views •
Cited by 1 •
2023
In this protocol, two approaches are described to make uniaxial compression testing of mouse lumbar vertebrae more attainable. First, the conversion of a three-point bending machine to a compression testing machine is described. Second, an embedding method for preparing the loading surface that uses bone cement is adapted for mouse lumbar vertebrae.
10:27
A Uniaxial Compression Experiment with CO2-Bearing Coal Using a Visualized and Constant-Volume Gas-Solid Coupling Test System
0 Views •
Cited by 3 •
2019
This protocol demonstrates how to prepare a briquette sample and conduct a uniaxial compression experiment with a briquette in different CO2 pressures using a visualized and constant-volume gas-solid coupling test system. It also aims to investigate changes in terms of coal’s physical and mechanical properties induced by CO2 adsorption.
08:08
Compression Tests on Hardened Concrete
0 Views •
2023
Source: Roberto Leon, Department of Civil and Environmental Engineering, Virginia Tech, Blacksburg, VA There are two distinct stages in a construction project involving concrete. The first stage involves batching, transporting, and casting fresh concrete. At this stage, the material is viscous, and the workability and finishability are the key performance criteria. The second stage occurs when the hydration process begins shortly after the concrete is placed in the form, and the concrete will...
02:58
Measurement of Compressive Stress-Strain Response at Small-Strains
0 Views •
2025
This protocol presents the configuration of a compression test device capable of precisely measuring the mechanical properties of microstructures in the small-strain region, along with a systematic method for compression testing using this device. The proposed device can be used to analyze various microstructures and the mechanical behavior of polymer-based materials.
05:20
Assessing Spinal Cord Compression Using Diffusion Tensor Imaging
0 Views •
2025
Source: Zheng, W. et. al., Diffusion Tensor Magnetic Resonance Imaging in Chronic Spinal Cord Compression. J. Vis. Exp. (2019)This video demonstrates diffusion tensor imaging in assessing chronic spinal cord compression. By analyzing water diffusion patterns, fractional anisotropy, and apparent diffusion coefficient values, the findings reveal axonal damage in compressed regions. The findings provide critical insights into spinal cord pathology and structural integrity.
FAQs
The test relates the applied compressive loading to the specimen’s resulting deformation. Elastic strain indicates recoverable deformation and supports evaluation of elastic modulus, a measure of stiffness. Continued loading can produce plastic deformation, while the maximum sustainable load helps characterize compressive strength. Together, these observations distinguish deformation behavior from resistance to failure.
As opposing forces shorten a specimen along the loading direction, the material may expand laterally. This dimensional change accompanies the axial deformation and can help reveal how the material responds before failure. Depending on the material and loading conditions, the response may remain elastic, progress into plastic deformation, or contribute to buckling or fracture.
The material and loading conditions strongly influence the observed failure behavior. Some specimens primarily shorten and expand laterally, whereas others may undergo elastic strain, plastic deformation, buckling, or fracture. Comparing these outcomes helps engineers identify whether a material’s governing limitation is stiffness, compressive strength, deformation capacity, or a specific failure mode.
These material classes can exhibit different combinations of stiffness, strength, deformation, and failure behavior under the same general loading condition. Compression testing provides a common way to characterize those differences without assuming that every material responds identically. The resulting measurements support comparisons during material selection and help engineers develop models suited to particular applications.
A specimen is subjected to opposing forces that reduce its length along the test axis. During loading, engineers observe the applied compression and the specimen’s deformation, including shortening, lateral expansion, or visible failure. The recorded response is then used to determine properties such as compressive strength and elastic modulus, along with the specimen’s failure behavior.
Compression testing can provide compressive strength, elastic modulus, and information about how a material fails. It may also show whether deformation remains elastic or becomes plastic, and whether buckling or fracture develops. These outcomes give engineers evidence for evaluating stiffness, load-bearing capacity, and the suitability of a material for components exposed to compression.
Engineers apply the results to material selection, structural design, quality control, and predictive model development. The data are especially relevant when components or structures experience compressive loads, because measured stiffness, strength, and failure behavior can inform design decisions. Testing also allows production materials to be evaluated against expected mechanical performance before use.