스트레인 게이지를 통한 Al 6061의 물성 측정

소개글

This experiment is performed to attach a strain gage on the Al 6061 specimen, followed by obtaining values of young’s modulus and poison’s ratio. At first, strain gage has attached on the specimen, and it has hold by tensile test machine. It is applied load by 168.2 MPa. We should be gone on applying with adding to 10 percent of the load to 10 steps, and with removing 10 percent of the load reversely. We can be obtained a value of resistance changes on the each step and a graph of load and time. Using this data, it can be calculated that engineering stress, engineering strain, and vertical-horizontal changes. Consequently, we can be obtained values that young’s modulus is 72.3GPa and Poisson’s ratio is 0.33, compared with young’s modulus is 69GPa and Poisson’s ratio is same.

목차

개요
이론적배경
실험방법
실험결과
고찰
참조

본문내용

All materials are transferred when those are under stress or force and this transform can be measured with strain gage. An advantage of strain gage can trust measurement and cost is reasonable price. Structure materials are taken Hook`s law in elasticity area. Modulus of elasticity is calculated by measuring strain. We will study measurement principle of strain gage in this experiment and stick it. We can calculate direction of stress and stress when materials are isotropy.

1. Introduction
All materials are transferred when those are under stress or force and this transform can be measured with strain gage. An advantage of strain gage can trust measurement and cost is reasonable price. Structure materials are taken Hook`s law in elasticity area. Modulus of elasticity is calculated by measuring strain. We will study measurement principle of strain gage in this experiment and stick it. We can calculate direction of stress and stress when materials are isotropy.

참고 자료

[1] Ferdinand P. Bear, E. Russell Johnston, Jr. John T. DeWolf, Mechanics of Materials, 3rd ed, p.84 (2004)
[2] C. C. Perry, The strain gage primer, McGraw-Hill ( 1962)
[3] William F. Smith, Structure and Properties of Engineering Alloys, 2nd ed, p.192~204, McGraw-Hill
[4] William D. Callister Jr, Fundamentals of Materials science and Engineering: An Interactive e. Text, 5th ed, p.158~160, Wiley (2001).
[5] George E. Dieter, Mechanical metallurgy, 2nd ed,
p.280~281, McGraw- Hill (1998).