... No. PVP2011-57267. 10.1115/PVP2011-57267 [6] Huh , N.-S. , Shim , D.-J. , Choi , S. , Wilkowski , G. , and Yang , J.-S. , 2008 , “ Stress Intensity Factors for Slanted Through-Wall Cracks Based on Elastic Finite Element Analyses ,” Fatigue Fract. Eng. Mater. Struct...

... in the literature survey. 05 01 2021 25 03 2021 04 08 2021 fatigue crack growth threshold negative stress ratio fatigue crack growth rate stress intensity factor fitness-for-service The relationship between fatigue crack growth rate da / dN and stress intensity factor range Δ K...

... and pressurized thermal shock (PTS) events. To assess the structural integrity of an RPV, a traditional method is usually employed by comparing fracture toughness of the RPV material with the stress intensity factor (K I ) of a crack postulated near the RPV inner surface. When an underclad crack (i.e., a crack...

...Chentong Chen; Hanbin Xiao; Yuh J. Chao; Poh-Sang Lam From linear elastic fracture mechanics (LEFM), it is well accepted that only the singular stress near the crack tip contributes to the fracture event through the crack tip stress intensity factor K. In the biaxial loading, the stress component...

... = stress intensity factors for mode I K rc = a coefficient for determining the elastic portion of the fracture toughness K IC = mode I fracture toughness K IC e , K IC p = elastic and plastic fracture toughness for mode I L...

...Yinsheng Li; Kunio Hasegawa; Makoto Udagawa The stress intensity factors (SIFs) for pipes containing semi-elliptical surface cracks with large aspect ratios were calculated by finite-element analysis (FEA). The cracks were circumferential and axial surface cracks inside the pipes. The parameters...

...Yinsheng Li; Kunio Hasegawa; Steven X. Xu; Douglas A. Scarth Many solutions of the stress intensity factor have been proposed in recent years. However, most of them take only third or fourth-order polynomial stress distributions into account. For complicated stress distributions which are difficult...

... in a threaded bolt depends on the stress intensity factor (SIF). Available SIF solutions have approximated the threaded bolt as a circular groove, thus, the SIF predominantly corresponds to the opening mode, mode-I. As a thread in a bolt has a helix angle, the crack propagates under mixed mode conditions...

...Xiangqiao Yan This note deals with the stress intensity factors (SIFs) for double edge half-circular-hole cracks in a rectangular sheet in tension by means of the displacement discontinuity method with crack-tip elements (a boundary element method) proposed recently by the author. Moreover...

... is controlled by upper shelf toughness behavior. In this paper, the distribution of the stress intensity factor (SIF) along a corner crack using elastic–plastic fracture mechanics technique is investigated to assess the effect of a structural factor on mechanical loads in pressurizer vent nozzle penetration...

...Shinji Konosu; Kyosuke Kasahara It is generally believed that multiple fatigue crack growth prediction is difficult with the use of conventional stress intensity factor (SIF) solution calculations because of issues such as SIF magnification and shielding effects. Therefore, almost all the existing...

.... The shielding and amplifying effects are varied with hole geometry form and hole geometry parameters. boundary-elements methods cracks plates (structures) pressure vessels stress analysis hole crack stress intensity factor boundary element crack-tip element displacement discontinuity...

...J. M. Alegre; I. I. Cuesta In order to calculate the fatigue life of cylinders subjected to internal pressure using the fracture mechanics approach, the stress intensity factors (SIFs) for internal semi-elliptical cracks are needed. Nowadays, the most accurate procedure for fatigue life calculation...

... of the stress intensity factors (SIFs) can be obtained by considering the latter problem, which is analyzed easily by means of a hybrid displacement discontinuity (a boundary element method) proposed recently by Yan. Numerical examples are included to illustrate that the numerical approach is very simple...

...Eduard Marenić; Ivica Skozrit; Zdenko Tonković In the present paper, calculations of the stress intensity factor (SIF) in the linear-elastic range and the J -integral in the elastoplastic domain of cracked structural components are performed by using the shell-to-solid submodeling technique...

...A. A. Ali; J. Purbolaksono; A. Khinani; A. Z. Rashid; F. Tarlochan In this paper stress intensity factors of a longitudinal semielliptical surface crack on the inner surface in a compound tube subjected to internal pressure are presented. Variations of modulus of elasticity and thickness...

... the magnification and shielding effects and the reference stress solutions, a newly developed assessment procedure for multiple discrete cracklike flaws in the failure assessment diagram is proposed. fitness for service (FFS) FAD multiple cracklike flaws stress intensity factor interaction factor collapse...

... and propagation in line pipes containing an inclined surface crack is presented. The inclined angle of the surface crack with respect to the axis of loading varies between 0 deg and 90 deg . Based on the concept of the effective stress intensity factor range Δ k eff , the rate of fatigue crack propagation d b ∕ d...

... cracks have been found during in-service-inspections. These subclad cracks should be assumed for a safe operation under normal conditions and faulted conditions such as pressurized thermal shock (PTS). There are several elastic stress intensity factor (SIF) solutions for subclad cracks which are used...