Materials Testing
Introduction:
Testing of materials are necessary for many reasons, and the subject of materials testing is very broad one. Some of the purpose for the testing of materials are:
1. To determine the quality of a material. This may be one aspect of
process control in production plant.
2. To determine such properties as strength, hardness, and ductility.
3. To check for flaws within a material or in a finished component.
4. To assess the likely performance of the material in a particular
service condition.
In spite of the properties of materials where introduced, then the composition, processing and heat treatment of a range of metallic and non-metallic materials widely used by the engineer have been described ,we should more be able to understand the problems and techniques associated with the testing of materials properties because they can be, nonetheless, useful to the designer, fabricator, and research worker, as follow:
1. Tensile test
Purpose of tensile testing:
Generally a tensile test is designed to be run until the sample fails or breaks under the load. The values that may be measured from this type of test like tensile strength, ultimate strength, elongation, modulus of elasticity, yield strength, Poisson’s ratio, and strain hardening. The measurements taken during the test reveals the characteristics of a material while it is under a tensile load.
المادة المعروضة اعلاه هي مدخل الى المحاضرة المرفوعة بواسطة استاذ(ة) المادة . وقد تبدو لك غير متكاملة . حيث يضع استاذ المادة في بعض الاحيان فقط الجزء الاول من المحاضرة من اجل الاطلاع على ما ستقوم بتحميله لاحقا . في نظام التعليم الالكتروني نوفر هذه الخدمة لكي نبقيك على اطلاع حول محتوى الملف الذي ستقوم بتحميله .
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