An Examination of the Size Effects and Data Scatter Observed in Small-specimen Cleavage Fracture Toughness Testing

An Examination of the Size Effects and Data Scatter Observed in Small-specimen Cleavage Fracture Toughness Testing PDF Author: J. G. Merkle
Publisher:
ISBN:
Category : Fracture mechanics
Languages : en
Pages : 94

Book Description


Evaluations of the Irwin. Beta. /sub Ic/ Adjustment for Small Specimen Fracture Toughness Data

Evaluations of the Irwin. Beta. /sub Ic/ Adjustment for Small Specimen Fracture Toughness Data PDF Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :

Book Description
When small specimens are used to measure the cleavage fracture toughness of pressure vessel steels in the transition range of temperature, specimen thickness size effects and large amounts of data scatter are often observed. The size effects are manifested by an increase in the average value of fracture toughness with decreasing specimen thickness, eventually resulting in a change in fracture mode from cleavage to ductile tearing. It has been shown that a semiempirical adjustment for the interacting effects of specimen thickness, yield stress and toughness originally proposed by Irwin is capable of reducing the calculated values of toughness and data scatter to levels consistent with large specimen test data. This is true for dynamic as well as for static initiation toughness values. The nature of the size effect described by the Irwin .beta./sub Ic/ equation is illustrated and specific cases are shown in which .beta./sub Ic/ adjustment has eliminated size effects, for both static and dynamic fracture toughness data.

Fracture Mechanics

Fracture Mechanics PDF Author: J. P. Gudas
Publisher: ASTM International
ISBN: 0803112998
Category : Fracture mechanics
Languages : en
Pages : 615

Book Description
Papers from the 21st National Symposium on Fracture Mechanics, held in Annapolis, Md., June 1988, present new work in elastic-plastic fracture, dynamic fracture, transition fracture in steels, micromechanical aspects of the fracture process, computational mechanics, fracture mechanics testing, and a

Fracture Mechanics

Fracture Mechanics PDF Author: Ravinder Chona
Publisher: ASTM International
ISBN: 0803118678
Category : Electronic book
Languages : en
Pages : 864

Book Description
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

Fracture Mechanics

Fracture Mechanics PDF Author: John D. Landes
Publisher: ASTM International
ISBN: 0803119909
Category : Electronic book
Languages : en
Pages : 805

Book Description


Energy Research Abstracts

Energy Research Abstracts PDF Author:
Publisher:
ISBN:
Category : Power resources
Languages : en
Pages : 518

Book Description


Scientific and Technical Aerospace Reports

Scientific and Technical Aerospace Reports PDF Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 702

Book Description


Quantitative Methods in Fractography

Quantitative Methods in Fractography PDF Author: Bernard M. Strauss
Publisher: ASTM International
ISBN: 0803113870
Category : Fractography
Languages : en
Pages : 173

Book Description


Fracture Mechanics

Fracture Mechanics PDF Author: Walter G. Reuter
Publisher: ASTM International
ISBN: 0803119968
Category : Aluminum alloys
Languages : en
Pages : 842

Book Description


Reactor Dosimetry

Reactor Dosimetry PDF Author: J.P. Genthon
Publisher: Springer Science & Business Media
ISBN: 940095378X
Category : Technology & Engineering
Languages : en
Pages : 995

Book Description
Proceedings of the Fifth ASTM - Euratom Symposium on Rector Dosimetry, GKSS Research Centre, Geesthacht, F.R.G., September 24-28, 1984