Author: JA. Begley
Publisher:
ISBN:
Category : Alloys
Languages : en
Pages : 16
Book Description
Dynamic fracture toughness tests were performed on four base plate heats and six weldments of SA533 Gr A Cl 2 pressure vessel steel. Linear elastic KId results were obtained at low temperatures while J-integral techniques were utilized to evaluate dynamic toughness over the transition and upper shelf temperature ranges. Loading rates in terms of ?K were on the order of 2 to 4 x 104 ksi in/s(2.2to4.4x104MPam/s). Charpy and drop weight nil-ductility transition (NDT) tests were performed to permit a comparison of toughness results with the American Society of Mechanical Engineers (ASME) code reference toughness KIR curve. Dynamic instrumented precracked Charpy tests on base plate material were included for a comparison with compact toughness (CT) specimen results. All dynamic fracture-toughness values of SA533 Gr A Cl 2 base, weld, and heat affected zone (HAZ) material exceeded the ASME code reference toughness KIR curve. Fracture-toughness values obtained via small specimen dynamic JId tests (1.0 in. (2.5 cm) thick CT specimens) compared well with previously developed large specimen KId values. Dynamic instrumented precracked Charpy toughness values were also comparable at low temperatures but failed to meet minimum J specimen size limitations midway into the transition-temperature range. At this point, Charpy toughness values increased dramatically compared to JId results meeting a 25 JId/?f size criterion and, thus, should not be considered a valid representation of fracture toughness. True upper shelf dynamic fracture-toughness results are also presented. The point of crack initiation (which provides the minimum measured value of JId) was identified rather than the typical maximum load point.
Dynamic Fracture Toughness of SA533 Grade A Class 2 Base Plate and Weldments
Flaw Growth and Fracture
Flaw Growth and Fracture
Author: John M. Barsom
Publisher: ASTM International
ISBN: 9780803103566
Category : Technology & Engineering
Languages : en
Pages : 538
Book Description
Publisher: ASTM International
ISBN: 9780803103566
Category : Technology & Engineering
Languages : en
Pages : 538
Book Description
ASTM Special Technical Publication
Proceedings of the ... National Symposium on Fracture Mechanics
Ductility and Toughness Considerations in Elevated Temperature Service
Author: American Society of Mechanical Engineers
Publisher:
ISBN:
Category : Steel, Heat resistant
Languages : en
Pages : 428
Book Description
Publisher:
ISBN:
Category : Steel, Heat resistant
Languages : en
Pages : 428
Book Description
Dynamic Fracture Toughness Properties of Heavy Section A533 Grade B Class 1 Steel Plate
Potential for Low Fracture Toughness and Lamellar Tearing on PWR Steam Generator and Reactor Coolant Pump Supports
Author: U.S. Nuclear Regulatory Commission. Division of Operating Reactors
Publisher:
ISBN:
Category : Nuclear reactors
Languages : en
Pages : 270
Book Description
Publisher:
ISBN:
Category : Nuclear reactors
Languages : en
Pages : 270
Book Description
Dynamic Fracture Initiation
Author: R. E. Link
Publisher:
ISBN: 9780160629778
Category :
Languages : en
Pages : 92
Book Description
Publisher:
ISBN: 9780160629778
Category :
Languages : en
Pages : 92
Book Description