Dynamic Crack-Tip Opening Displacement (CTOD) Measurements with Application to Fracture Toughness Testing PDF Download
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Author: JM. Shapiro Publisher: ISBN: Category : Crack-tip opening displacement Languages : en Pages : 16
Book Description
Crack-tip opening displacement (CTOD) measurements were made 100 üm behind the crack tip on standard three-point bend specimens using a laser-based interferometric technique. Four materials (SAE-01 steel, 4340 steel, HY-100 steel, and tungsten) were tested at loading rates ranging from quasi-static (K ? 1 MPa• m1⁄2/s) to dynamic (K ? 106 MPa • m1⁄2/s).
Author: JM. Shapiro Publisher: ISBN: Category : Crack-tip opening displacement Languages : en Pages : 16
Book Description
Crack-tip opening displacement (CTOD) measurements were made 100 üm behind the crack tip on standard three-point bend specimens using a laser-based interferometric technique. Four materials (SAE-01 steel, 4340 steel, HY-100 steel, and tungsten) were tested at loading rates ranging from quasi-static (K ? 1 MPa• m1⁄2/s) to dynamic (K ? 106 MPa • m1⁄2/s).
Author: William N Sharpe (Jr) Publisher: ISBN: Category : Materials Languages : en Pages : 88
Book Description
Quantification of the dynamic fracture toughness of structural materials is essential to a wide range of problems - from nuclear accidents to ordnance applications. However, the difficulties associated with accurate measurements of cracks under dynamic loading are considerable. Thus there are no standardized procedures and few reliable results. This work describes a systematic study of the dynamic fracture toughness of SAE-01 tool steel, 4340 and HY100 steels and a tungsten, using the ISDG (Interferometric Strain/Displacement Gage) system which has very high frequency resolution. The major advantage of the method is that information is obtained very close to the crack tip, so that stress wave loading effects are accounted for. A detailed error analysis gives an uncertainty of -10% to +20% in the determination of fracture toughness, which compares with + or - 20% for published work.
Author: K.H. Schwalbe Publisher: Springer Science & Business Media ISBN: 3642828183 Category : Science Languages : en Pages : 365
Book Description
Sponsored by Studiengesellschaft zur Förderung der Kern- energieverwertung im Schiffbau und Schiffahrt e.V. (KEST), Hamburg/Stiftung Volkswagenwerk, Hannover
Author: Gyoujin Cho Publisher: Elsevier ISBN: 0857093223 Category : Technology & Engineering Languages : en Pages : 309
Book Description
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.
Author: ST. Rolfe Publisher: ISBN: Category : Cracks Languages : en Pages : 33
Book Description
An investigation of the crack-tip opening displacement (CTOD) fracture behavior of four pressure vessel steels and one ship steel has been conducted. The purpose of the investigation was to determine the fracture behavior of the steels, to study the effects of CTOD testing variables, to examine various methods of evaluating test records, and to study the relationships among several fracture toughness parameters. The five steels studied, A508, A533, A516, A517, and A131, (Unified Numbering System [UNS] K12766, K12539, K02700, K11856, and K02102) had yield strengths from 240 to 750 MPa. In addition, three specimen sizes of the A533 and A516 steels were studied.
Author: Michael Graham Dawes Publisher: Woodhead Publishing ISBN: 9781855731226 Category : Technology & Engineering Languages : en Pages : 350
Book Description
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.
Author: JM. Shapiro
Author: JM. Shapiro
Author: William N Sharpe (Jr)
Author: 
Author: Ravinder Chona
Author: K.H. Schwalbe
Author: Gyoujin Cho
Author: 
Author: ST. Rolfe
Author: 
Author: Michael Graham Dawes