mechanics_of_material_Lab._61208manual2009

mechanics_of_material_Lab._61208manual2009 - An-Najah...

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An-Najah National University Engineering College Civil Engineering Department Strength of Material Laboratory Manual Prepared by: Dr. Isam Jardaneh Eng. Hamees Tubeileh 2009
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An- Najah National University Civil Engineering Department Mechanics of Material Laboratory Objectives The primary objectives of this laboratory are as followed: 1- To learn how the main properties and parameters of the materials can be measured. 2- To investigate and apply a group of the mechanics of material principles studies in its course. 3- To connect theory with practice. 4- To practice on the laboratory devices. Course Reference - Laboratory manual and handouts. Experiments In this laboratory the following experiments will be performed: 1- Equilibrium of forces. 2- Equilibrium of beams. 3- Member forces in a truss. 4- Sheer in rubber test. 5- Tensile strength test. 6- Extension of wires. 7- Simple suspension bridge. 8- Torsion test. 9- Deflection of beams. Grades Reports: 25% Presentation and participation 10% Midterm exam 25% Final exam 40% Note: to pass the laboratory, the student has to attend 87.5% of the experiments (7 experiments) and to do all the exams.
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Report Format Laboratory reports should be type written. Reports are due to one week from the completion of the experiment. The laboratory reports should include the following topics in the given order. 1- Title page: (5%) a) Course name and number b) Number and title of the experiment c) Names of students d) Date of the experiment 2- Objectives: (5%) It includes a brief and clear statement of the purpose of the experiment. 3- Theory: (10%) Theoretical analysis of the experiment approach and the basics equations needed for the calculations. 4- Experimental Apparatus and procedure: (10%) Description of the apparatus and the experimental procedure that you used in performing the experiment to collect the required data. 5- Results and Discussions: (60%) Presentation of the obtained experimental results in tabular or graphical form. Discussion of the results and comparison with the theoretical analysis. It also includes a discussion of the reliability of the results and the possible sources of errors. 6- Conclusions: (5%) Collect all the important results and interpretations in clear summary form. 7- References: (5%) Include the references cited in the text. In general the references should be the laboratory manuals and the text books of the theoretical materials.
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Equilibrium of Forces Object: The purpose of this experiment is to study the equilibrium of a set of forces acting in a vertical plane. In the first part the case of concurrent forces is to be investigated and checked by the graphical solution of triangle of forces (three forces) or a close polygon for more than three forces. The second part deals with non-concurrent forces and the use of a link polygon .
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