Download or read book Application of the Local Approach to Fracture in the Brittle to Ductile Transition Region of Mismatched Welds written by F. Minami and published by . This book was released on 2002 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper predicts the cleavage resistance of steel welds in the ductile-to-brittle transition region by the Local Approach. Attention is payed to the strength mismatch effect on the ductile tearing and subsequent cleavage fracture. Welded joints of pipeline steels, X65 and X80 steels according to API 5L, are made with the same electrode under the same heat input condition. The resultant weld metals are matched for the X80 steel welds and overmatched for the X65 steel welds in terms of the yield strength. The fracture behavior is investigated with 3-point bend specimens and tension plate specimens with a notch in the weld metal close to the fusion line. The strength mismatch and specimen geometry exert a large influence on the cleavage toughness and prior ductile tearing; CTOD toughness and crack growth resistance for the X65 tension welds increased significantly. This is due to a loss of constraint induced by the strength overmatch and tension geometry. The fracture driving force is evaluated by the Weibull stress as a function of the crack growth. The computational cell model is applied for the analysis of crack growth, where the independence of the cell parameters on the strength mismatch and specimen geometry is verified. Using the Weibull stress fracture criterion coupled with the crack growth analysis, 3-point bend toughness results can be transferred to the fracture strength evaluation of tension loaded welds with strength mismatch in the ductile-to-brittle transition region.
Download or read book Fatigue and Fracture Mechanics written by Ravinder Chona and published by ASTM International. This book was released on 2002 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fatigue and Fracture Mechanics written by and published by . This book was released on 2001 with total page 796 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Local Approach to Cleavage Fracture written by C S Wiesner and published by Abington Publishing. This book was released on 1995-12-14 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report assesses the current state of knowledge of the 'local approach' to cleavage fracture, reviews application to ferritic steels and their weldments and addresses limitations and disadvantages of the methodology.
Download or read book Transferability Properties of Local Approach Modeling in the Ductile to Brittle Transition Region written by K. Wallin and published by . This book was released on 2004 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: Qualitative descriptive potential of local approach models for upper shelf and transition region has been well established. Models such as the Gurson-Tvergaard-Needleman and the Beremin model have been demonstrated to enable characterization of fracture phenomena over the entire transition regime. The foundation for consistent local approach characterization of material failure has been set, but quantitative application is still at developing stages. Current work addresses properties of a modified Beremin model in terms of material parameter consistency and transferability, which are taken as measures of performance with respect to quantitative applicability. Three-point bend specimen fracture toughness data of sizes 3x4x27 mm, 5x5x27 mm, 5x10x55 mm and 10x10x55 mm are simulated in the ductile to brittle transition region using finite element methods and inference of local approach parameters is performed using pointwise collocation and stochastic methods. The suitability of the calibration methods and overall model performance are evaluated and demonstrated.
Download or read book Constraint Effects in Fracture Theory and Applications written by Mark Kirk and published by ASTM International. This book was released on 1995 with total page 546 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Advances in Fracture Research written by Alberto Carpinteri and published by Springer Science & Business Media. This book was released on 2007-01-30 with total page 259 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a spin-off from the International Journal of Fracture and collects lectures and papers presented at the 11th International Conference on Fracture (ICF11), March 20-25, 2005. Included in this volume are introductory addresses, as well as remarks on the presentation of honorary degrees. A collection of papers follows, including presentations by such eminent scientists as B.B. Mandelbrot, G.I. Barenblatt, and numerous others, reviewing advanced research in fracture.
Download or read book Applied Mechanics Reviews written by and published by . This book was released on 1974 with total page 620 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fracture Mechanics written by John D. Landes and published by ASTM International. This book was released on 1994 with total page 805 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Review of Engineering Approaches to Brittle Fracture Design written by J. D. Lubahn and published by . This book was released on 1969 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1971 with total page 2174 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A constant based model for fracture in the ductile to brittle transition region written by T. L. Anderson and published by . This book was released on 1984 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Shallow Crack Fracture Mechanics Toughness Tests and Applications written by Gyoujin Cho and published by Elsevier. This book was released on 1992-01-01 with total page 309 pages. Available in PDF, EPUB and Kindle. Book excerpt: Within the last decade there has been an increasing awareness that use of standards deeply notched fracture mechanics test specimens can result in substantial over-or-under-assessments of the real fracture toughness associated with shallow surface cracks.
Download or read book Advances in Fracture Research written by Alberto Carpinteri and published by Springer. This book was released on 2006-07-28 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a spin-off from the International Journal of Fracture and collects lectures and papers presented at the 11th International Conference on Fracture (ICF11), March 20-25, 2005. Included in this volume are introductory addresses, as well as remarks on the presentation of honorary degrees. A collection of papers follows, including presentations by such eminent scientists as B.B. Mandelbrot, G.I. Barenblatt, and numerous others, reviewing advanced research in fracture.
Download or read book Service Experience and Failure Assessment Applications written by Poh-Sang Lam and published by . This book was released on 2002 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt: Annotation Papers from an August 2002 conference describe the application of novel analytical and experimental methods in fracture mechanics to assess the structural integrity of pressure vessels and piping. Cracking of reactor components in nuclear power plants is also discussed. Some specific topics include validation of constraint based methodology in structural integrity, code based failure avoidance assessments of the NESC-1 large scale pressurized thermal shock experiment, and limit load solutions for surface cracks in plates under different loading types. Other subjects include cracking alloy 600/182 reactor vessel head penetrations, and root cause evaluation and repair of alloy 82/182 J-groove weld cracking of reactor vessel head penetrations. There is no subject index. Annotation c. Book News, Inc., Portland, OR (booknews.com).
Download or read book Comprehensive Structural Integrity written by Ian Milne and published by Elsevier. This book was released on 2003-07-25 with total page 4647 pages. Available in PDF, EPUB and Kindle. Book excerpt: The aim of this major reference work is to provide a first point of entry to the literature for the researchers in any field relating to structural integrity in the form of a definitive research/reference tool which links the various sub-disciplines that comprise the whole of structural integrity. Special emphasis will be given to the interaction between mechanics and materials and structural integrity applications. Because of the interdisciplinary and applied nature of the work, it will be of interest to mechanical engineers and materials scientists from both academic and industrial backgrounds including bioengineering, interface engineering and nanotechnology. The scope of this work encompasses, but is not restricted to: fracture mechanics, fatigue, creep, materials, dynamics, environmental degradation, numerical methods, failure mechanisms and damage mechanics, interfacial fracture and nano-technology, structural analysis, surface behaviour and heart valves. The structures under consideration include: pressure vessels and piping, off-shore structures, gas installations and pipelines, chemical plants, aircraft, railways, bridges, plates and shells, electronic circuits, interfaces, nanotechnology, artificial organs, biomaterial prostheses, cast structures, mining... and more. Case studies will form an integral part of the work.
Download or read book Ductile Fracture and Ductility written by Bradley Dodd and published by Academic Press. This book was released on 1987 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt:
