Download or read book Fatigue Crack Initiation at Spot Welds written by Hans-Fredrik Henrysson and published by . This book was released on 2001 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Fatigue Crack Initiation and Growth in Tensile Shear Spot Weldments written by FV. Lawrence and published by . This book was released on 1990 with total page 31 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fatigue crack initiation and growth in SAE 960X steel tensile-shear spot welds were studied by sectioning companion specimens and by replicating the exposed site of crack initiation in a presectioned weldment. Constant-amplitude R = 0 and R = -1 tests, as well as variable-load history tests were performed on as-welded weldments and weldments peened ("coined") after welding.

Download or read book Fatigue Crack Development in Tensile shear Spot Weldments written by Gary Alan Smith and published by . This book was released on 1984 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Estimating the Fatigue Resistance of Tensile shear Spot Welds written by Frederick VanBuren Lawrence and published by . This book was released on 1983 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Fatigue and Fracture Testing of Weldments written by Harry I. McHenry and published by ASTM International. This book was released on 1990 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fifteen papers from a symposium held in Sparks, Nev., April 1988. They cover: low and high cycle fatigue, fatigue crack growth, corrosion fatigue, fracture toughness testing, and wide-plate testing. Annotation copyright Book News, Inc. Portland, Or.

Download or read book Fatigue of Welded Structures written by Timothy Russell Gurney and published by CUP Archive. This book was released on 1979-12-20 with total page 480 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Fatigue Assessment of Welded Joints by Local Approaches written by Dieter Radaj and published by Woodhead Publishing. This book was released on 2006-10-30 with total page 661 pages. Available in PDF, EPUB and Kindle. Book excerpt: Local approaches to fatigue assessment are used to predict the structural durability of welded joints, to optimise their design and to evaluate unforeseen joint failures. This standard work provides a systematic survey of the principles and practical applications of the various methods. It covers the hot spot structural stress approach to fatigue in general, the notch stress and notch strain approach to crack initiation and the fracture mechanics approach to crack propagation. Seam-welded and spot-welded joints in structural steels and aluminium alloys are also considered.This completely reworked second edition takes into account the tremendous progress in understanding and applying local approaches which has been achieved in the last decade. It is a standard reference for designers, structural analysts and testing engineers who are responsible for the fatigue-resistant in-service behaviour of welded structures. Completely reworked second edition of a standard work providing a systematic survey of the principles and practical applications of the various methods Covers the hot spot structural stress approach to fatigue in general, the notch stress and notch strain approach to crack initiation and the fracture mechanics approach to crack propagation. Written by a distinguished team of authors

Download or read book Life Prediction of Spot welds written by John Andrew Newman and published by . This book was released on 1996 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Estimation of the Fatigue Crack Initiation Life in Welds Using Low Cycle Fatigue Concepts written by Rodrigo Jose Mattos and published by . This book was released on 1976 with total page 380 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Electric Potential Drop Studies of Fatigue Crack Development in Tensile Shear Spot Welds written by P. Kurath and published by . This book was released on 1992 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt: The development of fatigue cracks in galvanized low carbon and high-strength-low-alloy steel, tensile-shear-spot weldments was investigated using a d-c electrical-potential-drop technique which sensed the depth of fatigue cracks as they propagated through the thickness of the specimens. These resistivity changes were correlated with the actual crack depths measured on sectioned specimens. This correlation was used to identify lives at which certain crack depths were achieved: the duration of Stage I (initiation) corresponded to a crack depth of about 18% of the sheet thickness (?0.16 to 0.48 mm), and the duration of Stage II (through-thickness propagation) corresponded to a crack depth equal to the sheet thickness (0.89 to 2.72 mm). The final failure of the specimen determined the conclusion of Stage III (cross-width crack propagation).

Download or read book Estimation of the Fatigue Crack Initiation Life in Welds Using Low Cycle Fatigue Concepts written by R. J. Mattos and published by . This book was released on 1975 with total page 189 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Estimation of Fatigue Propagation Life in Resistance Spot Welds written by SD. Sheppard and published by . This book was released on 1993 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt: The main objective of this research is to develop a model of fatigue crack propagation in resistance spot welded joints. An important feature of this development is that the model should be usable by designers considering fatigue response of structures containing multiple welds. This objective is achieved by examining the stress state around a load bearing resistance spot weld. A general expression for the structural stress around the weld is formulated that is dependent only upon the loading immediately surrounding the weld and is therefore independent of specimen design.

Download or read book Estimating the Fatigue Crack Initiation Life of Welds written by JD. Burk and published by . This book was released on 1978 with total page 25 pages. Available in PDF, EPUB and Kindle. Book excerpt: The fatigue crack initiation life (cycles to obtain a 0.25-mm fatigue crack) was estimated for butt welds using strain-controlled fatigue concepts. Key developments which facilitated these estimates were the assumption of ??(Kf)max conditions (the largest value of ??Kf possible for a given weld shape), the use of computer simulation methods which modeled cyclic hardening and softening as well as mean stress relaxation effects, and the use of the fatigue properties of the actual weld zone in which the initial notch was located. The initiation life was found to be very sensitive to changes in ??Kf, but rather insensitive to strength level. The importance of residual stresses and mean stress varied with material as did the fraction of total life devoted to crack initiation. Mild steel (ASTM Specification for Structural Steel (A 36)) high strength, low alloy (ASTM Specification for High-Yield Strength, Quenched and Tempered Alloy Steel Plate, Suitable for Welding (A 514)) steel and aluminum alloy welds were considered.

Download or read book Fatigue Testing of Weldments written by D. W. Hoeppner and published by ASTM International. This book was released on 1978 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book IIW Recommendations for the Fatigue Assessment of Welded Structures By Notch Stress Analysis written by W Fricke and published by Woodhead Publishing. This book was released on 2012-10-22 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt: The notch stress approach for fatigue assessment of welded joints is based on the highest elastic stress at the weld toe or root. In order to avoid arbitrary or infinite stress results, a rounded shape with a reference radius instead of the actual sharp toe or root is usually assumed. IIW recommendations for the fatigue assessment of welded structures by notch stress analysis reviews different proposals for reference radii together with associated S-N curves. Detailed recommendations are given for the numerical analysis of notch stress by the finite or boundary element method. Several aspects are discussed, such as the structural weakening by keyhole-shaped notches and the consideration of multiaxial stress states. Appropriate S-N curves are presented for the assessment of the fatigue strength of different materials. Finally, four examples illustrate the application of the approach as well as the variety of structures which can be analysed and the range of results that can be obtained from different models. Provides detailed recommendations for the number analysis of notch stress by the finite or boundary element method Discusses structural weakening by keyhole-shaped notches and the consideration of multiaxial stress states Provides four comprehensive examples, illustrating the variety of structures which can be analysed and the range of results that can be obtained from different models

Download or read book Design and Analysis of Fatigue Resistant Welded Structures written by Dieter Radaj and published by Woodhead Publishing. This book was released on 1990-01-03 with total page 386 pages. Available in PDF, EPUB and Kindle. Book excerpt: An English version of a sucessful German book. Both traditional and modern concepts are described.

Download or read book Early Fatigue Crack Growth at Welds written by C. C. Monahan and published by Computational Mechanics. This book was released on 1995 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt: