The Title of the experiment:

Tensile Properties of Aluminum using Lloyds Testing Machine

The author`s name:

Jr., E. Russell Johnston , Ferdinand P. Beer

The date of the experiment: 15/11/2012

Lab Group – 3

Report by:

1-Turky Abdullah AL-Bussairi

2-Yasser Habib AL-Mutairi

3-Abdulrahamn Sa`ad AL-Huaifi

4-Abdulrahman hemdy AL-Harbi

Abstract:
We determined the elastic modulus, yield strength, tensile strength, modulus of toughens, elongation, reduction of area, as well as true stress and strain at rupture point for one specimen, aluminum,. We accomplished this by placing our specimen at a time into a universal testing machine
(UTM), which, under computer control, slowly increased the tension force on each specimen, stretching each until failure.

Purpose:
The purpose of this experiment is to extract data on the material properties one specimen (aluminum), using a mechanically driven universal testing machine (UTM). The material properties include the following: the elastic modulus, 0.2% offset yield strength, ultimate tensile strength, modulus of rupture, modulus of resilience, as well as true strain and true stress at the point of rupture.

Theory:
Certain materials (those that are linear, homogeneous, elastic, and isotropic) can be described by their material properties. These properties include the modulus of elasticity, modulus of toughness, modulus of resilience, ultimate tensile strength, and yield strength. Once established by experimental means, these properties are then applied to all instances of that material undergoing the same type of stress, allowing one to design structural elements whose behavior can be predicted. In practice, these qualities are affected by temperature and repeated loading, and also by the purity of the material-