Download or read book Fracture Toughness Testing of Ductile Cast Irons written by WL. Bradley and published by . This book was released on 1985 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt: The fracture toughness of ferritic, spheroidal graphite ductile cast iron has been measured by a single-specimen J-integral technique. The method used a servohydraulic test frame in the displacement control mode, with overall test control and data acquisition managed by a minicomputer. Digitized load and displacement values were combined to calculate incremental crack lengths based on measured crack length-compliance calibrations. Plots of J versus change in crack length were generated, and values of JIc (and equivalent KIc) were determined using ASTM Test for JIc, a Measure of Fracture Toughness (E 813). This technique thus provided a means of determining the plane-strain fracture toughness (KIc) using small samples (2.5 cm thick) at temperatures from -150 to +25°C. Previous attempts to measure KIc directly on similar materials had produced invalid results for all tests except those performed at very low temperatures (-60°C and below).

Download or read book Fracture Toughness of Ductile Cast Irons written by Athanasius Stephanos Lazaridis and published by . This book was released on 1971 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Fracture mechanics fifteenth symposium written by Melvin F. Kanninen and published by ASTM International. This book was released on with total page 676 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Fracture Toughness of Ductile Iron and Cast Steel written by WL. Bradley and published by . This book was released on 1986 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: The dynamic fracture behavior of ductile cast iron and cast steel has been studied to better explain why blunt notched Charpy bars indicate ductile iron has a quite inferior fracture toughness compared with cast steel with similar tensile properties (15 versus 75 J) while fracture mechanics tests indicate a much less significant difference in fracture toughness between the two materials. Using standard and fatigue precracked side-grooved Charpy specimens, it has been shown that the different predictions are due to a difference in constraint, the standard Charpy bar experiencing loss of constraint for the cast steel but remaining fully constrained for the ductile iron. For fatigue precracked and side-grooved Charpy specimens, initial crack extension occurred in both materials under conditions of full constraint, and the cast steel upper shelf fracture toughness was found to be only modestly better than the upper shelf fracture toughness of the ductile iron. Because of its lower ductile-to-brittle transition temperature, ductile iron has been found to have a superior fracture toughness to cast steel with similar tensile properties at temperatures below ambient.

Download or read book Strength and Toughness of Materials written by Toshiro Kobayashi and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 277 pages. Available in PDF, EPUB and Kindle. Book excerpt: As the shift from the Metal Age progresses, materials engineers and materials scientists seek new analytical and design methods to create stronger and more reliable materials. Based on extensive research and developmental work done at the author’s multi-disciplinary material laboratory, this graduate-level and professional reference addresses the relationship between fracture mechanisms (macroscale) and the microscopic, with the goal of explaining macroscopic fracture behavior based on a microscopic fracture mechanism. A careful fusion of mechanics and materials science, this text and monograph systematically considers an array of materials, from metals through ceramics and polymers, and demonstrates lab-tested strategies to develop desirable high-temperature materials for technological applications.

Download or read book A Fracture Analysis of Nodular Cast Iron written by R. K. Nanstad and published by . This book was released on 1974 with total page 496 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Fracture Toughness of Ductile Irons written by Tetsuo Hashii and published by . This book was released on 1976 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Determination of Lower Bound Fracture Toughness for Heavy Section Ductile Cast Iron DCI and Estimation by Small Specimen Tests written by T. Arai and published by . This book was released on 1994 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt: Spent nuclear fuel transport and/or storage casks (100-ton class) must maintain their structural integrity even when subjected to hypothetical transportation or handling accidents at storage facilities. For ductile cast iron (DCI) to be used as a cask containment boundary material, adequate fracture toughness and associated ductile behavior must be demonstrated at service temperatures and impact loading conditions of concern.

Download or read book Fracture Toughness of Unalloyed Austempered Ductile Cast Iron ADI written by SK. Putatunda and published by . This book was released on 1995 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: The influence of microstructure on the tensile properties and the plane strain fracture toughness (KIc) of unalloyed austempered ductile cast iron (ADI) was examined in room temperature ambient atmosphere. The crack growth mechanism during fracture toughness tests was determined through detailed fractographic studies. Compact tension and round cylindrical specimens were prepared from unalloyed ADI and were given four different austempering heat treatments to produce four different microstructures. Tensile properties and fracture toughness of these four differently heat-treated materials as well as cast materials were determined as per relevant ASTM standards.

Download or read book Fracture Toughness Studies of Gray and Ductile Cast Irons Using a J integral Approach written by Donna Lynne Woodall Floyd and published by . This book was released on 1981 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Fracture and Design Studies of Malleable and Ductile Irons written by Yi-Wen Cheng and published by . This book was released on 1977 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Science and Technology of Casting Processes written by Malur Srinivasan and published by BoD – Books on Demand. This book was released on 2012-09-26 with total page 362 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book deals with various science and technology factors that need careful consideration in producing a casting. It consists of 11 chapters contributed by experts in their respective fields. The topics include simulation of continuous casting process, control of solidification of continuous castings, influence of mold flux in continuous casting, segregation in strip casting of steel, developments in shell and solid investment mold processes, innovative pressure control during filling of sand molds, fracture toughness specifically of castings, permanent molding of cast iron, wear resistant castings and improvement of accuracy in estimating graphite nodularity in ductile iron castings.

Download or read book Fracture Mechanics written by Ravinder Chona and published by ASTM International. This book was released on 1993 with total page 864 pages. Available in PDF, EPUB and Kindle. Book excerpt: The proceedings of the 23rd National Symposium on Fracture Mechanics, held in College Station, Texas, June 1991, present a broad overview of the current state of the art in fracture mechanics research. Following the Swerdlow Lecture (Structural Problems in Search of Fracture Mechanics Solutions by

Download or read book Fracture Mechanics written by D. T. Read and published by ASTM International. This book was released on 1988 with total page 1108 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Fracture Toughness Test Methods for Abrasion Resistant White Cast Irons Using Compact Specimens written by DE. Diesburg and published by . This book was released on 1974 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: The fracture toughness of abrasion-resistant white cast irons has been measured, using precracked compact specimens. Some procedures used for precracking the brittle cast irons were outside the ASTM Test for Plane-Strain Fracture Toughness of Metallic Materials (E 399-72) requirements but still gave valid results. The excellent reproducibility, combined with a range in toughness values of 17.5 to 28.5 ksi?in. (19.2 to 31.4 MN/m3/2) for abrasion-resistant white cast irons, provided the sensitivity necessary to distinguish differences in the toughness of white cast irons resulting from variations in composition or microstructure. The fracture toughness of three commonly used irons, 27Cr, 9Cr-6Ni, and 20Cr-2Mo-1Cu, was compared in the as-cast (and stress-relieved) condition. Heat treating the 20Cr-2Mo-1Cu iron substantially increased the hardness and reduced the fracture toughness slightly.

Download or read book Fracture Mechanics written by John H. Underwood and published by ASTM International. This book was released on 1986 with total page 837 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Forskningsrapporter written by and published by . This book was released on 1986 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt: