Analysis Of Surface Cracks In Finite Plates Under Tension Or Bending Loads PDF Download
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Author | : |
Publisher | : |
Total Pages | : 52 |
Release | : 1979 |
Genre | : |
ISBN | : |
Download Analysis of Surface Cracks in Finite Plates Under Tension Or Bending Loads Book in PDF, ePub and Kindle
Author | : J. C. Newman |
Publisher | : |
Total Pages | : 52 |
Release | : 1979 |
Genre | : Materials |
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Download Analyses of Surface Cracks in Finite Plates Under Tension Or Bending Loads Book in PDF, ePub and Kindle
Author | : J. C. Newman |
Publisher | : |
Total Pages | : 98 |
Release | : 1984 |
Genre | : |
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Download Stress-intensity Factor Equations for Cracks in Three-dimensional Finite Bodies Subjected to Tension and Bending Loads Book in PDF, ePub and Kindle
Author | : |
Publisher | : |
Total Pages | : 44 |
Release | : 1984 |
Genre | : |
ISBN | : |
Download Surface Cracks in a Plate of Finite Width Under Tension Or Bending Book in PDF, ePub and Kindle
Author | : I. S. Raju |
Publisher | : |
Total Pages | : 52 |
Release | : 1977 |
Genre | : |
ISBN | : |
Download Improved Stress-intensity Factors for Semi-elliptical Surface Cracks in Finite-thickness Plates Book in PDF, ePub and Kindle
Author | : WG. Reuter |
Publisher | : |
Total Pages | : 21 |
Release | : 2000 |
Genre | : Constraint |
ISBN | : |
Download Stress and Fracture Analyses of Semi-Elliptical Surface Cracks Book in PDF, ePub and Kindle
The present paper concentrates on both elastic and elastic-plastic finite-element stress analyses of the surface crack in a plate subjected to tension and bending loads. Stress-intensity factor (K) equations that cover a wider range of crack-length-to-width ratios, than those previously developed by Newman and Raju, for various crack-depth-to-crack-length ratios and crack-depth-to-plate-thickness ratios have been developed and are presented. These equations are used in the subsequent fracture analyses of surface crack specimens subjected to tension and bending loads. From elastic-plastic finite-element analyses, the variations of a hyper-local constraint parameter (?h) along the surface-crack front were studied to identify the region of maximum constraint and the critical fracture location. (The hyper-local constraint parameter is based on the average normal stresses acting over the plastic-zone region on a line in the crack plane perpendicular to the crack front.) The application of linear-elastic fracture mechanics to fracture of surface-crack specimens made of a high-strength D6AC steel are presented for both tension and bending loads. Two methods were used to characterize fracture: the K2-integral around the crack front and K at a critical fracture location (?c). The critical fracture location was the location of the maximum of the product of K times ?h. These two methods were used to evaluate the fracture toughness for both the crack-initiation loads and at the maximum failure load conditions. For tension and bending loads, the K2-integral method correlated 90% of the fracture data within ±25% in terms of load, whereas K at the critical fracture location correlated the data within ±20%.
Author | : |
Publisher | : |
Total Pages | : 52 |
Release | : 1979 |
Genre | : Science |
ISBN | : |
Download NASA Technical Paper Book in PDF, ePub and Kindle
Author | : Gary R. Halford |
Publisher | : ASTM International |
Total Pages | : 551 |
Release | : 2000 |
Genre | : Fatigue |
ISBN | : 0803128681 |
Download Fatique and Fracture Mechanics Book in PDF, ePub and Kindle
Author | : I. S. Raju |
Publisher | : |
Total Pages | : 50 |
Release | : 1988 |
Genre | : |
ISBN | : |
Download Stress-intensity Factors for Small Surface and Corner Cracks in Plates Book in PDF, ePub and Kindle
Author | : George C. Sih |
Publisher | : Springer Science & Business Media |
Total Pages | : 344 |
Release | : 2012-12-06 |
Genre | : Science |
ISBN | : 940101292X |
Download Plates and shells with cracks Book in PDF, ePub and Kindle
This third volume of a series on Mechanies of Fraeture deals with eraeks in plates and shelIs. It was noted in Volume 2 on three-dimensional eraek problems that additional free surfaees can lead to substantial mathematical complexities, often making the analysis unmanageable. The theory of plates and shelIs forms a part of the theory of elasticity in which eertain physieal assumptions are made on the basis that the distanee between two bounded surfaees, either fiat or eurved, is small in eomparison with the overall dimen sions of the body. In modern times, the broad and frequent applieations of plate- and shell-like struetural members have aeted as a stimulus to whieh engineers and researchers in the field of fracture meehanies have responded with a wide variety of solutions of teehnieal importanee. These eontributions are covered in this book so that the reader may gain an understanding of how analytieal treat me nt s ofplates and shells containing initial imperfeetions in the form of eraeks are earried out. The development of plate and shell theories has involved long standing controversy on the eonsisteney of omitting eertain small terms and at the same time retaining others of the same order of magnitude. This defieieney depends on the ratio of the plate or shell thiekness, h, to other eharaeteristie dimensions and eannot be eompletely resolved in view of the approximations inherent in the transverse dependence of the extensional and bending stresses.