How Does Compression Testing Machine Work?
Compression testing machine is an essential equipment for measuring the compressive strength of materials. This equipment employs a straightforward working method, allowing anyone with basic knowledge to operate it easily. Let's dive into the working mechanism of the compression testing machine.
Step 1: Sample Preparation.
The initial process of using a compression testing machine is sample preparation. The sample is a representation of the material whose compressive strength is to be tested. This material can be anything from concrete, asphalt, wood, or plastic. The sample is shaped into a cylindrical shape and smoothed to remove any irregularities that may affect the test's accuracy.
Step 2: Setting Up the Machine.
After sample preparation, the next step is setting up the compression testing machine. The machine consists of two main parts: the load frame and the control unit. The load frame contains a lower and upper platen, which hold the sample between them. The control unit and load frame are then connected, allowing the machine to operate.
Step 3: Specimen Loading.
Once the machine is set up, the sample is then placed onto the lower platen of the load frame, which is stationary. The upper platen is then gently lowered on top of the sample. This process may be conducted manually, gravitationally, or by using hydraulic power, depending on the machine type and application.
Step 4: Measurement.
The compression testing machine exerts a constant axial load on the sample, and the load is slowly increased until the sample fails. During this process, the machine will measure the sample's deformation, which is the amount of compression the sample undergoes.
Step 5: Results and Analysis.
The results of the compression testing are then generated and displayed on the control unit. The results include the compressive strength of the sample, which is the load at which the sample fails divided by the sample's cross-sectional area. The compressive strength is then analyzed by the user to determine the material's mechanical properties, such as stiffness and elasticity.
Conclusion.
In conclusion, compression testing machines are vital equipment for measuring the compressive strength of materials. The machine's operation is relatively simple, requiring only sample preparation, machine setup, and specimen loading. The compression testing machine then measures the sample's deformation, and the results are displayed on the control unit for analysis. With a compression testing machine, material analysis is made simple and quick, allowing for efficient construction projects and quality assurance.
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