Conclusion we were able to successfully tensile test aluminium and mild steel using the universal testing machine, from the data obtained we were able to successfully obtain the youngs modulus, ultimate tensile strength and yield stress values of the two metals. Express the result in grams per square millimetre pounds per square inch and if possible report to three signi. It is very important to the tensile test to be considered is the standard dimensions and profiles are adhered to. The tension test is one of the laboratories which help students develop their knowledge in this course by practice. By comparing the values of the two metals we can see that mild steel has higher values in all of the three properties which means. This test is a destructive method, in which a specimen of a standard shape and dimensions prepared according to astm d 638tandard test method for tensile properties of. Tensile testing is described, covering test specimen form, determination of the engineering stressstrain curve, and derivation of test results. A tensile test, also known as a tension test, is one of the most fundamental and common types of mechanical testing. Standard test method for tensile properties of plastics1 this standard is issued under the.
E equation 1 where p is the load in newtons force read from the loaddisp. Steel was found to be more ductile than castiron but less ductile than aluminum. Example long laboratory report mechanical properties. Lab report requirements general the following suggestions should be helpful. During the laboratory a tinnitus olsen tension test equipment was used, and the test samples were from low and high carbon steel and timber with grains parallel and perpendicular to the load.
Report on the results of the measurements, and calculate mean and standard deviations of the properties. Tensile testing and hardness testing of various metals technical report submitted to. This means when the stress is removed the specimen returns to its original length. Lab report engineering materials lab tensile test 1. Tensile properties for plastics, polymers and steels are very sensitive to testing rates, but aluminum alloys exhibit little sensitivity. From these measurements, we can determine the following properties. Tensile data analysis 3 the common method is to construct a line parallel to the modulus line. Tensile testing and hardness testing of various metals. The software required to run the uniaxial tests will be loaded and ready to go when you get to the. Standard test method for tensile properties of adhesive bonds1. Concepts the linear relationship is hookes law that represents elastic deformation. Tensile test purpose, graph, results, specimen detail. E, 1 mpa 106 pa engineering strain is the change in length of the. The test unit will be introduced in the laboratory before the experiment by the relevant assistant.
Tensile specimens and test machines stressstrain curves, including discussionsof elastic versus plastic deformation, yield points, and ductility true stress and strain test methodology and data analysis it should be noted that subsequent chapters contain more detailed information on these topics. The data used for this lab report was not gathered from the student run experiments, but rather from standardized testing performed by the laboratory professor, to ensure accurate and consistent results. The engineering tensile test is also known as tension test which vary widely used for providing the base of the design information on the strength of material and as an acceptance test for the specification of the materials. Report on the results of the measurements, and calculate mean. Strength and testing of materials engr211204 uploaded by. However, because of the high degree of sensitivity exhibited by many plastics to rate of straining and environmental conditions, data obtained by this test method cannot be considered valid for applications involving loadtime scales or environments widely different from those of this test method. Steps to check and record brinell hardness of specimen, 3. Steel was also able to resist larger stresses corresponding to larger loads compared to the other two test. Youngs modulus, poissons ratio, yield strength, and strainhardening characteristics. Friday, march 10th 2017 materials engineering laboratory applied physics study program faculty of science and technology sampoerna university. We will look at a very easy experiment that provides lots of information about the strength or the mechanical behavior of a material, called the tensile test. Using data acquired stress and strain was calculated and plotted on excel to analyze stress strain curve. Abstract tensile test method for the determining of the.
Strength can have many meanings, so let us take a closer look at what is meant by the strength of a material. The concepts of stress and strain are essential to understanding the results of the test. The intersection of this line with the stressstrain curve is defined as the yield point. The material test curves have a region where the deformation caused by the stress is elastic, or not permanent. Report in your laboratory reports must have the followings. It measures the force required to break a composite or plastic specimen and the extent to which the specimen stretches or elongates to that breaking point.
Two concrete test machine are available for use in fsel. A number in parentheses indicates the year of last reapproval. Brief comments on differences and similarities in each property for the set of materials from the tables above it can be seen that. The test involves straining a test piece by tensile force, generally to fracture, for the purpose of determining one or more of the mechanical properties defined in clause 4. Standard test methods for tension testing of metallic. Tensile testing of metals objective the tensile test measures the resistance of a material to a static or slowly applied force. The basic idea of a tensile test is to place a sample of a material between two fixtures called grips which clamp the material. Conclusion we were able to successfully tensile test. The test is carried out at ambient temperature between 10cand 35 c, unless otherwise specified. By doing this, tensile tests determine how strong a material is and how much it can elongate. Using the testworks software in simulator mode, run a tension test and collect loadextension data for the acetalspecimen. The materials to be investigated are copper and steel.
Detailed steps required to check ultimate tensile strength using universal testing machine of any specimen, 2. The line is offset to pass through the strain axis at 0. One material property that is widely used and recognized is the strength of a material. Tensile data analysis the tensile example document presents a method to generate a stressstrain curve from test data. The universal testing machine can be used to determine the tensile strengths of. For help with reading taking values of of a stressstrain curve, see this video a. Introduction tensile testing is one of the simplest and most widely used mechanical tests.
A completed worksheet, steel6150tens is in the help folder. This visual representation helps to guide the determination of material properties for design. Tensile testing experiment 1 engr22983 khaled atya hassan 900977 1 abstract a tensile test was conducted. The idea of this tensile test experiment is to calculate the specific material properties from each material tested and see how they compare to a standard reference of the same materials properties already provided in the real world. Lab 3 tension test objectives concepts background experimental procedure report requirements discussion objectives experimentally determine the yield strength, tensile strength, and modules of elasticity and ductility of given materials. We then begin to apply weight to the material gripped at one end while the other end is fixed. Rockwell b test brinell 10500 hardness test average 99. A tensile test applies tensile pulling force to a material and measures the specimens response to the stress. Standard test method for tensile properties of adhesive. Uniaxial tension and compression testing of materials. The tensile test data are characterized by terminology shown in figure 41.
It is important that all the information necessary to complete the lab report is obtained before students leave the lab. Introduction a tension test is probably the most fundamental type of mechanical test. Example long laboratory report mechanical properties of. View lab report tensile testing report from engr 229 at american university in cairo. This video defines various concepts related to the tensile test in detail. Tensile test purpose, graph, results, specimen details. Object the purpose of this experiment is to understand the uniaxial tensile testing and provide knowledge of the application of the tensile test machine. The tensile strength of the 304 and 316 series stainless steel used in the production of these products is an important consideration for designers when selecting what style, diameter and. The important part of the specimen is the gage section.
Abstract this experiment was conducted so as compare the mechanical properties of aluminium and mild steel. For me lab i, you will usually report your values as mean. However, a typical format for a lab report is included below. Using the instron series ix software, the forcedisplacement responses of each of the material at a displacement rate of 15 mmmin were acquired. Aug 23, 2012 this video defines various concepts related to the tensile test in detail. Mechanical and physical testing of biocomposites, fibrereinforced composites and hybrid composites, 2019. Tensile testing report tensile testing experiment 1. Tensile test experiment materials science and engineering. Tensile testing, also known as tension testing, is a destructive engineering and materials science test whereby controlled tension is applied to a sample either as a load for proof testing or until it fully fails.
It is used to find out how strong a material is and also how much it. From performing the tensile test the following properties will be determined. Complete a posttest analysis on the test data and determine the following properties. After testing one sample of each material, a second round of tensile tests were performed on both. Consider the typical tensile specimen shown in fig. Below is a snap shot of an actual tensile test being taken on a sample material. The main principle of the tensile test is denotes the resistance of a material to a tensile load applied axially to a specimen. Tensile testing report tensile testing experiment 1 engr229. Standard test methods for tension testing of metallic materials1. It is used to find out how strong a material is and also how much it can be stretched before it breaks. Example long laboratory report mechanical properties of 1018. Mar 20, 2018 lab report engineering materials lab tensile test 1.
Both the load stress and the test piece extension strain are measured and from this data an engineering stressstrain curve is constructed, fig. With the advancement and continuing integration of composite materials and technology in todays modern industries, research in this field is becoming more and more significant. This is one of the most common mechanical testing techniques. Complete a post test analysis on the test data and determine the following properties. During the tensile test pieces can fly out during fracture. Tensile test report, 20 the epco bow and stern eyes are designed for mooring boats in accordance with abtc h40.
Tensile data analysis comments analysis of tensile data. Tensile testing of steel see web for typical report format including. This laboratory experiment is designed to demonstrate the procedure used for obtaining mechanical properties as modulus of elasticity, yield strength, ultimate tensile strength uts, toughness, uniform elongation. Tensile testing is a destructive test process that provides information about the tensile strength, yield strength, and ductility of the metallic material. Standard test method for tensile properties of plastics1. Tensile testing, also known as tension testing, is a destructive engineering and materials science test whereby controlled tension is applied to a sample either as a load for proof testing or until it fully fails this is one of the most common mechanical testing techniques. Abstract a tensile test was conducted on an instron tensile machine using a 316 inch copper rod.
The rate at which a test is performed can have a significant effect on tensile properties. Strain tensile brass trial 1 brass trial 2 aluminum copper steel trial 1 steel trial 2. Tensile test method for the determining of the structural properties of individual carbon fibers carlton metcalfdoetsch honors mentor. Do not remove specimens from abrasive cutoff machine until. Our tensile testing labs utilize stateoftheart digital instrumentation to report the ultimate tensile strength, maximum elongation, and reduction of the area of a material. Friday, march 10th 2017 materials engineering laboratory applied physics study program faculty of science and technology sampoerna university 2017.
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