Peterson's Stress Concentration Factors, Third Edition by Walter D. Pilkey, Deborah F. Pilkey(auth.)

By Walter D. Pilkey, Deborah F. Pilkey(auth.)

Peterson's pressure focus elements establishes and continues a method of information class for the entire functions of pressure and pressure research and expedites their synthesis into CAD functions. considerably revised and entirely up to date, this booklet provides pressure focus components either graphically and with formulation. It additionally employs computer-generated paintings in its portrayal of many of the relationships among the strain components affecting machines or buildings. those charts offer a visible illustration of the computer or constitution into consideration in addition to graphs of some of the pressure focus elements at paintings. they are often simply accessed through an illustrated desk of contents that enables id in response to the geometry and loading of the site of an element.

For the recent 3rd variation, new fabric could be additional masking finite aspect analyses of pressure concentrations, in addition to powerful computational layout. The ebook explains how you can optimize form to bypass rigidity focus difficulties and the way to accomplish a well-balanced layout of constructions and machines that might lead to lowered expenditures, lighter items, and superior performance.Content:
Chapter 1 Definitions and layout family members (pages 1–56):
Chapter 2 Notches and Grooves (pages 57–134):
Chapter three Shoulder Fillets (pages 135–175):
Chapter four Holes (pages 176–400):
Chapter five Miscellaneous layout components (pages 401–456):
Chapter 6 tension focus research and layout (pages 457–512):

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The two different factors will interact with each other and produce a new stress distribution. Because of it’s importance in engineering design, considerable effort has been devoted to finding solutions to the multiple stress concentration problems. Some special cases of these problems follow. CASE 1. Geometrical Dimension of One Stress Raiser Much Smaller Than That of the Other Assume that d 2 ϾϾ r in Fig. 15, where r is the radius of curvature of the notch. Notch r will not significantly influence the global stress distribution in the element with the circular hole.

6a). For this case the stress components ␴ z , ␶xz , ␶yz can be assumed to be equal to zero. This state of stress is called plane stress, and the stress components ␴ x , ␴ y , ␶xy are functions of x and y only. If the dimension in the z direction of a long cylindrical or prismatic body is very large relative to its dimensions in the x, y plane and the applied forces are perpendicular to the longitudinal direction (z direction) (Fig. 6b), it may be assumed that at the midsection the z direction strains ␧z , ␥xz , and ␥ yz are equal to zero.

4 (a) Tension bar with hole; (b) torsion bar with groove. The stress concentration factor based on the reference stress ␴ n , namely, ␴ nom ϭ ␴ n , is Ktn ϭ ␴ max ␴ max ␴ max (H Ϫ d )h H Ϫd ϭ Ktg ϭ ϭ ␴ nom ␴n P H (4) In general, Ktg and Ktn are different. 1. Observe that as d H increases from 0 to 1, Ktg increases from 3 to ϱ, whereas Ktn decreases from 3 to 2. Either Ktn or Ktg can be used in calculating the maximum stress. It would appear that Ktg is easier to determine as ␴ is immediately evident from the geometry of the bar.

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