By E. Russell Johnston Jr., David F. Mazurek, Ferdinand Beer, John DeWolf
Beer and Johnston’s Mechanics of Materials is the uncontested chief for the instructing of strong mechanics. utilized by millions of scholars worldwide for the reason that its e-book in 1981, Mechanics of Materials, offers an exact presentation of the topic illustrated with quite a few engineering examples that scholars either comprehend and relate to idea and alertness.
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Additional resources for Mechanics of Materials 6th
In later chapters you will learn to determine stresses in more complex situations. In engineering applications, however, the determination of stresses is seldom an end in itself. Rather, the knowledge of stresses is used by engineers to assist in their most important task, namely, the design of structures and machines that will safely and economically perform a specified function. a. Determination of the Ultimate Strength of a Material. An important element to be considered by a designer is how the material that has been selected will behave under a load.
In addition, future alterations or changes in usage may introduce changes in the actual loading. Larger factors of safety are also required for dynamic, cyclic, or impulsive loadings. The type of failure that may occur. Brittle materials fail suddenly, usually with no prior indication that collapse is imminent. On the other hand, ductile materials, such as structural steel, normally undergo a substantial deformation called yielding before failing, thus providing a warning that overloading exists.
29c and d, we conclude that normal and shearing stresses of equal magnitude are exerted on four faces of the cube (Fig. 38b). We thus observe that the same loading condition may lead to different interpretations of the stress situation at a given point, depending upon the orientation of the element considered. More will be said about this in Chap 7. 13 DESIGN CONSIDERATIONS In the preceding sections you learned to determine the stresses in rods, bolts, and pins under simple loading conditions. In later chapters you will learn to determine stresses in more complex situations.
Mechanics of Materials 6th by E. Russell Johnston Jr., David F. Mazurek, Ferdinand Beer, John DeWolf