An Analysis Of, and Some Observations On, Dynamic Fracture in an Impact Test Specimen PDF Download
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Author: T. Nishioka
Publisher:
ISBN:
Category :
Languages : en
Pages : 12
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Book Description
Numerical simulations of crack-propagation histories in four cases of dynamic tear test experiments on 4340 steel are performed. The influence of the loss of contact of the specimen at various times with either the supports or the tup or both is critically examined. In each case, the variation of the dynamic K-factor, for the simulated crack-propagation history, is directly computed. The results are discussed in the light of current controversies surrounding the dynamic fracture toughness properties governing crack-propagation under impact loading. It is concluded that these controversies may not be fully warranted. (Author).
Author: T. Nishioka
Publisher:
ISBN:
Category :
Languages : en
Pages : 12
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Book Description
Numerical simulations of crack-propagation histories in four cases of dynamic tear test experiments on 4340 steel are performed. The influence of the loss of contact of the specimen at various times with either the supports or the tup or both is critically examined. In each case, the variation of the dynamic K-factor, for the simulated crack-propagation history, is directly computed. The results are discussed in the light of current controversies surrounding the dynamic fracture toughness properties governing crack-propagation under impact loading. It is concluded that these controversies may not be fully warranted. (Author).
Author:
Publisher: VSP
ISBN: 9789067640046
Category : Science
Languages : en
Pages : 1132
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Book Description
This volume contains 132 selected papers presented at the Symposium which will be held on November 22-25, 1983 in Beijing and is the first of international symposia on fracture mechanics held in China. In this volume one may find the contributions of many internationally well known scientists and engineers is the field of fracture mechanics. Among the 132 papers from 12 countries and regions, 16 are invited lectures which were specially chosen to cover major trends in fracture mechanics and were prepared by specialists actively engaged on the respective subjects. All papers are grouped under the 6 headings, that is, 1. Elastic and elastic-plastic fracture mechanics; 2. Applications of fracture mechanics; 3. Test methods; 4. Fatigue; 5. Fracture models and micro-mechanisms and 6. Fracture of non-metals. 70 papers are from Chinese contributors. It is the first time that Chinese scientists and engineers working on this field presented their studies to the outside world in such a large number and wide range of topics. Anyone interested in fracture mechanics may find in this volume the recent advances in this field. Anyone interested in the development in China may find in this volume the state of the art of fracture mechanics studies in China. This proceedings may serve also as a reference book for engineers, applied mathematicians, metallurgists, physicists and other scientists, as well as graduate students and undergraduate students. There are approximately 1,100 pages.
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 652
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Book Description
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.
Author: K. Ravi-Chandar
Publisher: Elsevier
ISBN: 0080472559
Category : Science
Languages : en
Pages : 265
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Book Description
Dynamic fracture in solids has attracted much attention for over a century from engineers as well as physicists due both to its technological interest and to inherent scientific curiosity. Rapidly applied loads are encountered in a number of technical applications. In some cases such loads might be applied deliberately, as for example in problems of blasting, mining, and comminution or fragmentation; in other cases, such dynamic loads might arise from accidental conditions. Regardless of the origin of the rapid loading, it is necessary to understand the mechanisms and mechanics of fracture under dynamic loading conditions in order to design suitable procedures for assessing the susceptibility to fracture. Quite apart from its repercussions in the area of structural integrity, fundamental scientific curiosity has continued to play a large role in engendering interest in dynamic fracture problems In-depth coverage of the mechanics, experimental methods, practical applications Summary of material response of different materials Discussion of unresolved issues in dynamic fracture
Author:
Publisher:
ISBN:
Category : Mechanical engineering
Languages : en
Pages : 662
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Author:
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 180
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Book Description
Author: George C. Sih
Publisher: Springer Science & Business Media
ISBN: 9401092532
Category : Science
Languages : en
Pages : 707
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Book Description
The planning meeting for a conference on Dynamic Crack Propagation was held at M.LT. in February 1971 and attended by research workers from several industrial, governmental and academic organizations. It was felt that a more specialized meeting would provide a better opportunity for both U.S. and foreign researchers to exchange their ideas and views on dynamic fracture, a subject which is seldom emphasized in national or international fracture conferences. Dynamic crack propagation has been a concern to specialists in many fields: continuum mechanics, metallurgy, geology, polymer chemistry, orthopedics, applied mathematics, as well as structural design and testing. It impinges on a wide variety of problems such as rock breaking and earthquakes, pressure vessels and line pipes, comminution and the per formance of armament and ordnance, etc. Advances have been numerous, covering theories and experiments from both the microscopic and macro scopic points of view. Hence, the need for comparing the theoretical and experimental results and bridging the gaps between the atomistic and continuum approaches must be constantly emphasized. It also appeared that the overall problem of dynamic fracture could benefit from a con solidation of crack models proposed for the various types of materials: metals, ceramics, composites, rocks, glasses, polymers and biomaterials.
Author: J.C. Maso
Publisher: CRC Press
ISBN: 0203627253
Category : Architecture
Languages : en
Pages : 218
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Book Description
An important new state-of-the-art report prepared by RILEM Technical Committee 108 ICC. It has been written by a team of leading international experts from the UK, USA, Canada, Israel, Germany, Denmark, South Africa, Italy and France. Research studies over recent years in the field of cement science have focused on the behaviour of the interfaces between the components of cement-based materials. The techniques used in other areas of materials science are being applied to the complex materials found in cements and concretes, and this book provides a significant survey of the present state of the art.
Author:
Publisher:
ISBN:
Category : Composite materials
Languages : en
Pages : 766
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Book Description
Author:
Publisher:
ISBN:
Category : Mechanics, Applied
Languages : en
Pages : 776
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Book Description
