PLC BASED TEAR AND TENSILE STRENGTH TESTING MACHINE
Tensile testing is a way of determining how something will react when it is pulled apart - when a force is applied to
2025-06-28 16:34:30 - Adil Khan
PLC BASED TEAR AND TENSILE STRENGTH TESTING MACHINE
Project Area of Specialization RoboticsProject SummaryTensile testing is a way of determining how something will react when it is pulled apart - when a force is applied to it in tension.In Tensile strength testing Horizontal construction is preferred in the design. Servo motor and ballscrew drive is used in the drive of movable clamp and elongation of test sample is calculated from servo motor motion and gear-ballscrew kinematics. Tension is measured by load cells of different measuring intervals. Software routines have been developed for different tests including load-elongation (or stress-strain) curve, tension change under constant elongation, creep test and force and elongation lost under cyclic loading. It is shown that load-elongation curves obtained from the developed device. But some deviations exist. This is taught to be due to the bending in the movable clamp and mechanical imperfections. With the improvement of rigidity of the device and mechanical imperfections, the device is expected to give test results of commercially available ones in the market.
Project Objectives- Our aim is to design an automatic machine for measuring of tear and tensile strength of fabrics by using PLC and HMI.
- In this project we will find tear and tensile strength of different fabrics.
- In the end, the complete prototype of proposed idea will be given which includes, electronic component, mechanical assembly and project report.
There are two principles used in test devices to obtain loadelongation curves. The first principle is that textile material is elongated at a constant speed and tension induced in the material is measured by a load cell. In this way, loadelongation curve is obtained by recording the tension for each value of elongation. In the second principle, load is increased and elongation is recorded for each value of the load and load-elongation curve is drawn. Universal test devices available in the market use the first principle in which textile material is hold by two clamps at a certain distance called sample length . While one of the clamps is fixed the other is driven by a servo motor or servo hydraulic actuator . Tension of test sample is measured by a load cell for small
Benefits of the Project- Textile industry: To find fabric tensile strength
- Plastic industry: To find plastic tear and tensile strength
- Paper industry: To find paper tear and tensile strength
- Education laboratory: To find metal tensile strength
By pressing the open button, the upper and lower clamps will open, user will insert the fabric specimen and press the close button to close the clamps. The two test buttons, tear and tensile, are available on screen. Press the test button to either start the tear or tensile test.
First the motorized movable clamp will start moving upward from its initial position at constant speed and stretched the fabric specimen in upward direction. The load cell sensor attached with the lower (fixed) clamp starts to sense the force applied on fabric specimen. As the movable clamp moves upward, the length of fabric will increase and the load cell sensor sense more force. At a specific stage, the fabric will break, this force will be the maximum breakable force of the fabric.
The force and position, using load cell and encoder respectively, are feed to PLC for further processing and the test results will displayed on HMI in the form of numbers and graphs. (Force in newton verses distance in mm).
Final Deliverable of the Project HW/SW integrated systemType of Industry Education , IT , Medical , Health , Security Technologies OthersSustainable Development Goals Good Health and Well-Being for People, Decent Work and Economic GrowthRequired Resources| Item Name | Type | No. of Units | Per Unit Cost (in Rs) | Total (in Rs) |
|---|---|---|---|---|
| Total in (Rs) | 49000 | |||
| PLC | Equipment | 1 | 10000 | 10000 |
| HMI | Equipment | 1 | 12000 | 12000 |
| LOAd CELL SENSOR | Equipment | 1 | 5000 | 5000 |
| LOAD CELL AMPLIFIER | Equipment | 1 | 800 | 800 |
| DC Motor | Equipment | 1 | 1500 | 1500 |
| MOTER DRIVER | Equipment | 1 | 1000 | 1000 |
| POWER SUPPLY | Equipment | 1 | 1500 | 1500 |
| ENCODER | Equipment | 1 | 3000 | 3000 |
| LIMIT SWITCH | Equipment | 1 | 200 | 200 |
| CLAMP ACTUATER | Equipment | 2 | 2000 | 4000 |
| MECHANICAL STRUCTURE | Miscellaneous | 1 | 10000 | 10000 |