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Fatigue testing machine. Fatigue Group :- Abed Al Sala m Hammouz Ahmad Abaza Ala ’ Mustafa Mohammad Bahish. Supervised by :- Dr. Ahmad Al Ramahi. Outline . Part one Review. Design stage. Manufacturing and Assembly Testing and documentation Cost analysis and further work.

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Presentation Transcript
fatigue testing machine

Fatigue testing machine

Fatigue Group :-

Abed Al Salam Hammouz

Ahmad Abaza

Ala’ Mustafa

Mohammad Bahish

Supervised by :-

Dr. Ahmad Al Ramahi

outline
Outline
  • Part one Review.
  • Design stage.
  • Manufacturing and Assembly
  • Testing and documentation
  • Cost analysis and further work
part one review
Part One Review
  • Literature review about fatigue
  • Preliminary design
preliminary design specimens
Preliminary Design - Specimens
  • Four point clamping test specimen .
  • Three point clamping test specimen .
design stage
Design stage
  • Machine Functions and Layout.
  • Design Calculation.
rotating bending test
Rotating bending test
  • Put the specimen under pure bending moment
rotating bending test1
Rotating bending test

F/2

F/2

Forcing method using dead weights.

manufacturing and assembly
Manufacturing and Assembly

Used Manufacturing processes

Turning

Welding

Milling

machine features
Machine Features
  • Ease of use.
machine features1
Machine Features
  • It has a good flexibility.
electrical circuit
Electrical Circuit
  • Ease of operate machine.
  • Control the time of experiment .
  • Give accurate results for number of cycles to failure .
  • Support safety for both user and machine .
electrical circuit2
Electrical Circuit

Safety mode

  • The motor does not work until:
  • The main switch is ON.
  • Emergency switch and (ON/OFF switch) are ON.
  • Cover of the motor is completely closed.
electrical circuit3
Electrical Circuit

Accuracy in reading results

  • To get the accuracy in results.
  • The normally open limit switches are ON.
  • The normally closed limit switches are ON.
  • Then sensor feeds signals.
electrical circuit4
Electrical Circuit
  • Open limit switches are ON means the cover of the motor is closed, the house is not aligned, does not happen any failure in the specimen.
  • Closed limit switches are ON means, the contactor start connecting, and there is a load affecting on the specimen.
electrical circuit5
Electrical Circuit
  • When start getting signals from the sensor,
  • counter counting until the specimen fails,then:-
  • The motor stop rotating,
  • Sensor stop feeding with signals,
  • And the counter holds the values on.
testing and documentation
Testing and Documentation
  • Testing operation
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