PENGUJIAN KUAT TARIK KAYU

Summary

This video demonstrates a tensile strength test where a sample is prepared and measured using specific tools like calipers and an extensometer. The test is conducted by applying a load at a rate of 20 MPa until maximum load is reached. The data is recorded and analyzed using specialized testing software. The process includes measuring the cross-section, securing the sample, and calculating the maximum force achieved, with the results being printed for reference. The overall goal is to determine the material's tensile strength by following precise procedures and measurements.

Takeaways

• 😀 The video begins with a greeting and introduction of the task: performing a tensile strength test.
• 😀 Background music accompanies the initial setup and introduction to the procedure.
• 😀 The specimen to be tested is measured using a caliper to ensure it meets the specified dimensions.
• 😀 The testing machine is set up, and the specimen is prepared for the tensile test.
• 😀 An extensometer is installed on the specimen to measure elongation during the test.
• 😀 The machine is set to apply a load at a constant speed of 20 MPa until the maximum load is reached.
• 😀 Data is recorded before starting the test using testing software.
• 😀 After the test is completed, the results are printed and noted down.
• 😀 The specimen is then released, and the maximum load calculation is done.
• 😀 The calculation formula is shared, and the final results are computed, including the conversion of units from N to kg.
• 😀 Music plays intermittently throughout the video, keeping the atmosphere consistent with the technical demonstration.

Q & A

What is the purpose of the test described in the script?

The purpose of the test is to perform a tensile strength test (pengujian kuat tarik) to evaluate the material's ability to withstand pulling forces.

What are the initial steps before starting the tensile strength test?

Before starting the test, the test specimen is prepared according to specific dimensions. Measurements of the cross-section are made using a caliper to ensure proper size and fit for the test.

How is the specimen's size measured before the test?

The specimen's dimensions, particularly the width (b) and height (h), are measured using a caliper to ensure accuracy in the test setup.

What equipment is used to measure the specimen's dimensions?

A caliper is used to measure the width (b) and height (h) of the specimen before it is mounted onto the testing equipment.

What role does the extensometer play in the testing process?

The extensometer is used to measure the elongation or strain of the specimen during the test, ensuring precise monitoring of the specimen's deformation under stress.

What is the maximum load the test machine applies during the tensile test?

The machine applies a maximum load at a rate of 20 MP3 (likely referring to a constant load rate during the test).

What is the significance of the software used in the testing procedure?

The software is crucial for recording the measurement data during the test, including pressure and load, and for managing the analysis of test results.

What should be done after the test reaches the maximum load?

After the test reaches the maximum load, the machine is stopped, and the results are printed and recorded for further analysis.

How is the maximum tensile force calculated?

The maximum tensile force is calculated by using a formula where the force (N) is derived by dividing the total load by the cross-sectional area of the specimen.

What formula is used to calculate the tensile force in the test?

The tensile force is calculated using the formula: F = (Load / Cross-sectional Area), where the load is divided by the specimen’s cross-sectional area (which is the product of width and height).