인장실험 결과보고서, 고체역학, 고체역학 실험, tensile test report

목차

1. Introduction
(1) Purpose
(2) engineering stress and strain
(3) True stress and strain
(4) Elongation
(5) Young's modulus
(6) Offset method

2. Method
(1) Procedure on tensile test
(2) Procedure on round specimen tensile test
(3) Procedure on how to use strain gauge

3. Result
(1)strain-gauge test
(2)Round bar Hydraulic test
(3)board specimen test

4. Discussion

5. Conclusion

6. Reference

7. Appendix

본문내용

1. Introduction
(1) Purpose
The specimen is fixed to a tensile testing machine and the test is carried out. A tensile load is applied to the specimen until it fracture. some of the properties such as yield point, yield strength of the material, tensile strength and elongation, is measured. The tensile test, in addition to the proportional limit and elasticity limit such as elastic modulus, the daily dose can be determined, a line diagram showing the relationship between load and elongation applied also can be determined.
A load-elongation curve is plotted by an x - y axis. A stress-strain curve can be constructed from this load-elongation curve by making the calculations. Then the mechanical data that we search for can be known by looking on stress-strain curve. Tensile tests are always carried out under the same conditions, reliable measurement results is get. In conclusion, tensile testing is important to help in the selection of the most appropriate material for many engineering projects and for developing techniques to modify a material’s properties.

참고 자료

Hibbeler RC (2011) Mechanics of materials, 8th edn. Pearson, Singapore
"Tensile Properties". Retrieved 20 February 2015.
Czichos, Horst (2006). Springer Handbook of Materials Measurement Methods. Berlin: Springer. pp. 303–304. ISBN 978-3-540-20785-6.
ASME guide to conference publications: references, https://www.asme.org/shop/proceedings/conference-publications/references [accessed on 2015. 02. 25]