Tensile test report
- 1. Forging new generations of engineers
- 2. Tensile Test Report Graphical Analysis and Computational Results of Collected Data
- 3. Tensile Report Layout Your Tensile report will include 10 pages which will contain the following information: • Title page • Statistical Process Control Data collected from tensile data • Proportional Strength - Definition-graph-calculation • Yield Strength - Definition-graph-calculation • Tensile or Ultimate Strength - Definition-graph-calculation • Breaking/Rupture Strength - Definition-graph-calculation • Modulus of Elasticity - Definition-graph-calculation • Modulus of Resilience - Definition-graph-calculation • Modulus of Toughness - Definition-graph-calculation • Calculations Page - data not needing graphical representation
- 4. Title Page • Major Topic Heading •Course Name •Topic of Paper •Student Name •Instructor •Date •Period Material and Materials Testing in Engineering Principles of Engineering Unit 6 Destructive Tensile Test of Aluminum John Vielkind-Neun Instructor: Mr. Smith May 17, 2000 Period 6
- 5. Statistical Process Control Data • Cut SPC data sheet into sections and glue to titled page • Break information into appropriate sections. e.g. Recorded Data Results Histogram Statistical Process Control Aluminum Data
- 6. Proportional Limit Stress Proportional Limit - The greatest stress a material is capable of withstanding without deviation from a straight -line proportionality between stress and strain. If the force applied to the material is released the material will return to it’s original shape and size. Calculation S = F / A Graph Strain (∈) in/in Stress(S)psi Proportional/ Elastic Limit
- 7. Yield Point Stress Yield point - The point at which a sudden elongation takes place, while the load on the sample remains the same or actually drops. If the force applied to the material is released the material will not return to it’s original shape and size. Calculation S = F / AGraph Strain (∈) in/in Stress(S)psi Yield Point
- 8. Ultimate or Tensile Stress Ultimate Strength - The point at which the maximum load for a sample is achieved. Beyond this point, elongation of the sample continues but the force being exerted decreases. Calculation S = F / A Graph Strain (∈) in/in Stress(S)psi Ultimate Strength
- 9. Breaking/Rupture Stress Breaking/Rupture Stress - The maximum amount of stress that can be applied before rupture occurs. The material fractures in the necking region where the material reduces in diameter as the material elongates. Calculation S = F / A Graph Strain (∈) in/in Stress(S)psi Rupture Point Necking Region
- 10. Modulus of Elasticity Modulus of Elasticity -A measure of a materials ability to regain its original dimensions after the removal of a load or force. The modulus is the slope of the straight line portion of the stress-strain diagram up to the proportional limit. Calculation E = (F1 -F2)Lo / (δ1 -δ 2)A Graph Strain (∈) in/in Stress(S)psi Proportional / Elastic Limit Slope
- 11. Strain (∈) in/in Stress(S)psi Elastic Region Modulus of Resilience Modulus of Resilience -A measure of a materials ability to absorb energy up to the elastic limit. This modulus is represented by the area under the stress versus strain curve from zero force to the elastic limit. Calculation Ur = 1/2 (σyp)(ε yp) Graph Elastic Limit
- 12. Modulus of Toughness Modulus of Toughness -A measure of a materials ability to plastically deform without fracturing. Work is performed by the material absorbing energy by the blow or deformation. This measurement is equal to the area under the stress versus strain curve from its origin through the rupture point. Graph Strain (∈) in/in Stress(S)psi Plastic Region Calculation: Ut = 1/3(εBr) (σyp + 2σult)
- 13. Calculation Page Total Strain/ Deformation -The total amount of elongation of a sample to rupture normalized(divided by) by the initial length. Calculation: εtotal = δtotal/Lo Ductility:The ability of a material to be deformed plastically without rupture. Calculation: % Elongation = ε total(100) Ductility:The ability of a material to be deformed plastically without rupture. Calculations: % Reduction in area = Aoriginal - A final / A original (100)