Sinopsis
Excerpt from A Handbook of Testing: Materials
The properties of materials used by engineers vary owing to many causes. If we take a pound of almost any gas and measure its temperature, pressure, and volume, we can estimate with accuracy the behaviour of the gas, if it is to be compressed, under certain conditions, to a new pressure and volume. If, however, we take a pound of steel we cannot forecast with any accuracy the behaviour of the material under load if we know nothing more about it than the fact that it is called steel. It is of some assistance if we know the chemical. Composition of the steel, but, even with such information, we cannot estimate with accuracy the load which the material will carry at the point of fracture.
Experience has taught engineers that the only satisfactory method of estimating suitable loads in design works is to subject samples of the actual material to be used, to tests, which reproduce, as nearly as is possible, the conditions met with in actual practice. Thus, if a quantity of steel is made for a purpose in which the material is subjected to a direct pull, the most satisfactory way of deciding the maximum value of the pull to be allowed in practice is to test samples of the material under similar conditions, and obtain a record of the physical properties of these samples. Of course it is possible that all of the steel from which the samples have been selected will not behave in a similar fashion to the specimens tested. In general, however, we can obtain suffi cient data to assist us to estimate with considerable certainty the safe loads to which the materials may be subjected.
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Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com
This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
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Reseña del editor
Excerpt from A Handbook of Testing: Materials
The properties of materials used by engineers vary owing to many causes. If we take a pound of almost any gas and measure its temperature, pressure, and volume, we can estimate with accuracy the behaviour of the gas, if it is to be compressed, under certain conditions, to a new pressure and volume. If, however, we take a pound of steel we cannot forecast with any accuracy the behaviour of the material under load if we know nothing more about it than the fact that it is called steel. It is of some assistance if we know the chemical. Composition of the steel, but, even with such information, we cannot estimate with accuracy the load which the material will carry at the point of fracture.
Experience has taught engineers that the only satisfactory method of estimating suitable loads in design works is to subject samples of the actual material to be used, to tests, which reproduce, as nearly as is possible, the conditions met with in actual practice. Thus, if a quantity of steel is made for a purpose in which the material is subjected to a direct pull, the most satisfactory way of deciding the maximum value of the pull to be allowed in practice is to test samples of the material under similar conditions, and obtain a record of the physical properties of these samples. Of course it is possible that all of the steel from which the samples have been selected will not behave in a similar fashion to the specimens tested. In general, however, we can obtain suffi cient data to assist us to estimate with considerable certainty the safe loads to which the materials may be subjected.
About the Publisher
Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com
This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Reseña del editor
Excerpt from A Handbook of Testing: Materials
All technical colleges, and many of the large engineering works, now possess a laboratory furnished with apparatus for the testing of materials. It is hoped that some portion of this book may be of service to engineers engaged in practice; it is, however, written primarily for the college student, although a great engineer has said that one of the attractions of our work is that we are always students in engineering. If, at times, the reader thinks that the descriptions of apparatus, or of tests, are somewhat detailed, he should remember that, although he may be quite familiar with a machine or process, other readers, possibly, have not had the same opportunities.
The chief object of the author has been to interest engineers in experimental work. The experience gained in four colleges, and a works testing department, has led to the belief that the great importance of experimental work is not sufficiently recognised. It is hoped that students may be stimulated to look up, both before and after they have made experiments, the description of the apparatus and tests mentioned. The diagrams will perhaps be useful for sketching purposes.
The methods of teaching engineering vary in the different centres. No attempt is made in this book to standardise such methods - each instructor is the best judge of what suits the plant and the students. A list of experiments is given in Chapter XII., as it may be useful to those who are commencing to organise a laboratory course.
The illustrations have been made especially for the book. Attention has been given to the scheming, as well as the actual drawing and reproduction of diagrams, in the hope that the details of the apparatus described may be made clear. An effort has been made to avoid catalogue illustrations.
About the Publisher
Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com
This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
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A Handbook of Testing: Materials (Classic Reprint)
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Paperback. Condición: New. Print on Demand. This book provides a comprehensive guide to the principles and practices of testing materials used in engineering, particularly steel and cast iron. It begins with an overview of the significance of testing materials, emphasizing the importance of understanding their properties for safe and efficient engineering design. The author then discusses the various methods used to test materials, including tension, compression, bending, shear, and hardness tests. Specific techniques, such as strain-measuring instruments, are also covered in detail. The book concludes with a discussion of the importance of standardization in testing methods and the role of research in advancing the knowledge of materials. Through its clear explanations and comprehensive coverage, this book aims to equip engineers with the knowledge and skills necessary to effectively evaluate and utilize materials in their designs. This book is a reproduction of an important historical work, digitally reconstructed using state-of-the-art technology to preserve the original format. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in the book. print-on-demand item. Nº de ref. del artículo: 9781330596746_0
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A Handbook of Testing Materials Classic Reprint
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