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Mechanical Propertiesof Materials

I c Strength of a material depends on its ability to sustain a load Withouta deformation or failure This Property is inherent in the materialiIan must be determined by exper/flient One of the mo importantL s to perform in this regard is the teiisi or eompresjo11 test.many important mechanical properties of a material can heCL mined from this test. i is used primarily to determine thefonship between the average normal stress and average normala in many engineering niaterials such as metals ceramics Polymers..-ompos5

1APTER OBJECTIVESving discussed the basic concepts of stress and strain we will in this chapteriow how Stress can be related to strain by using experimental methods tootermine the stress_strain diagram for a specific material. The behaviorescribed by this diagram will then be discussed for materials that arecommonly used in engineering. Also, mechanical propeies and other teststhat are related to the developrn of mechanics of materials will beGScussed

I The Tension and Compressjo TestIIV/The mechanical propeies of a material must be known so that engineers canrelate the measured stran in a material to its associated stress Here the mechanicalpropeies of bone are determ ined from a compression test.

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