Master Curve Procedure Accounting for the Combined, Constraint, Ductile Tearing and Loading Rate Effects

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Abstract

The probability of brittle fracture is affected, aside from the crack driving force, by changes in constraint, loading rate and crack propagation due to an increase in the sampling volume. In addition, crack propagation, per se, can lead to constraint changes and it also affects the effective strain rate at the crack tip. Especially in the case of leak before break (LBB) where a surface crack transforms instantaneously to a through-wall crack, the increase in local strain rate combined with constraint change and ductile crack extension can be sufficient to cause a transition from ductile fracture to brittle fracture. This, and other similar events, require the development of an advanced Master Curve procedure to account for combined effect of constraint, ductile tearing and loading rate on the brittle fracture probability. A simplified methodology for achieving this is outlined and demonstrated here.
Original languageEnglish
Title of host publicationASME 2019 Pressure Vessels & Piping Conference
Subtitle of host publicationVolume 6A: Materials and Fabrication
PublisherAmerican Society of Mechanical Engineers (ASME)
Number of pages7
ISBN (Electronic)978-0-7918-5897-4
DOIs
Publication statusPublished - 2019
MoE publication typeA4 Article in a conference publication
EventASME 2019 Pressure Vessels and Piping Conference, PVP 2019 - San Antonio, United States
Duration: 14 Jul 201919 Jul 2019

Conference

ConferenceASME 2019 Pressure Vessels and Piping Conference, PVP 2019
CountryUnited States
CitySan Antonio
Period14/07/1919/07/19

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