Download or read book Metallurgical Aspects of Plastic Fracture and Crack Arrest in Two High Strength Steels written by Irwin GR and published by . This book was released on 1988 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: Elastic-plastic fracture toughness tests were carried out with HY-80 and ASTM A710 Grade A Class 3 steels, and crack arrest tests were carried out with the HY-80 steel. Metallurgical analyses were conducted to describe the local plastic fracture processes which contribute to ductile crack initiation and cleavage crack arrest. The fracture toughness, JIc, of the ASTM A710 steel was over two times that of the HY-80 steel. Large manganese sulfide (MnS) inclusions in the HY-80 steel controlled fracture by reducing local crack-tip constraint and promoting fast shear fracture in regions of high local strain. Fracture in ASTM A710 steel occurred by full void coalescence because of reduced inclusion content, a higher strain hardening capacity than that seen in HY-80, and discontinuous carbide distribution, which retarded local shear instabilities. A stress-modified critical strain model was observed to explain the relative fracture toughness of the two steels adequately, and this suggested a higher critical distance parameter for ASTM A710 steel, which was qualitatively verified. The micromechanisms of crack arrest in HY-80 include shear fracture of ligaments behind the crack-tip connecting noncoplanar regions of cleavage and, for the case of near upper shelf arrest, large deformations associated with the lateral spreading of cleavage.

Download or read book Nonlinear Fracture Mechanics Elastic plastic fracture written by John D. Landes and published by ASTM International. This book was released on 1988 with total page 634 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Micromechanisms of Fracture and Crack Arrest in Two High Strength Steels written by J. P.. Gudas and published by . This book was released on 1986 with total page 307 pages. Available in PDF, EPUB and Kindle. Book excerpt: An investigation of fracture properties of a quenched and tempered martensitic steel and copper precipitation on strengthened low carbon ferritic steel possessing similar yield strengths was conducted. The objective included evaluation of fracture toughness, and explanation of metallurgical mechanisms causing changes in relative fracture performance. A crack arrest toughness test procedure was developed to obtain full plate thickness, lower bound measurements of dynamic fracture toughness at various test temperatures. Micromechanisms of fracture processes were described using metallurgical analysis techniques. Keywords: crack arrest, crack initiation, cleavage fracture, and structural steel.

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 Applied Mechanics Reviews written by and published by . This book was released on 1972 with total page 520 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1991 with total page 1460 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.

Download or read book Metals Abstracts written by and published by . This book was released on 1990 with total page 1342 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Fracture Mechanics written by Ted L. Anderson and published by CRC Press. This book was released on 1994-12-16 with total page 1148 pages. Available in PDF, EPUB and Kindle. Book excerpt: This bestselling text/reference provides a comprehensive treatment of the fundamentals of fracture mechanics. It presents theoretical background as well as practical applications, and it integrates materials science with solid mechanics. In the Second Edition, about 30% of the material has been updated and expanded; new technology is discussed, and feedback from users of the first edition has been incorporated.

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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

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Download or read book Report of NRL Progress written by Naval Research Laboratory (U.S.) and published by . This book was released on 1968 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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Download or read book ERDA Energy Research Abstracts written by United States. Energy Research and Development Administration. Technical Information Center and published by . This book was released on 1976 with total page 1118 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Government Reports Announcements written by and published by . This book was released on 1974 with total page 1000 pages. Available in PDF, EPUB and Kindle. Book excerpt: