Results 11 to 20 of about 344 (116)
Science and Technology of Nuclear Installations, 2022 The damage induced pressurized thermal shock (PTS) may pose to a reactor pressure vessel (RPV) is a critical safety requirement assessed as part of the ageing management programme of pressurized water reactors (PWRs).
M. Annor-Nyarko +2 more
doaj +2 more sources
Numerical and experimental investigation of mixed‐mode crack growth in aluminum alloys
Fatigue &Fracture of Engineering Materials &Structures, Volume 45, Issue 10, Page 2854-2872, October 2022., 2022 Abstract Fatigue crack growth in Al 2024 and Al 7050 specimens was assessed experimentally and numerically. In the experimental investigation, various specimen configurations and loading conditions were used to achieve pure mode I, pure mode II, and mixed mode I/II, I/III, and I/II/III.
Daniele Amato +3 more
wiley +1 more source
Three-Dimensional Surface Crack Growth of Maraging Steel Spherical Pressure Shell
Journal of Marine Science and Engineering, 2021 This study focused on the three-dimensional surface crack growth of a spherical pressure shell. Eight maraging steel 18Ni (250) samples were fabricated and tested, and the fatigue crack growth rate curves were obtained.
Yongmei Zhu, Rujun Li, Jiahao Yang
doaj +1 more source
Three‐Dimensional Stress Intensity Factor Correction Method Based on Thickness Size Effect
Advances in Materials Science and Engineering, Volume 2021, Issue 1, 2021., 2021 This paper presents the fatigue crack growth test of 7N01 aluminum alloy specimens with different thicknesses under three‐point bending. Moreover, the effect of specimen thickness on the fatigue crack growth life was analyzed. The influence mechanism of the thickness size effect on the stress intensity factor was explored.
Xiaochen Zhang +6 more
wiley +1 more source
Advances in Materials Science and Engineering, Volume 2020, Issue 1, 2020., 2020 The growth of double cracks is the main factor leading to progressive rock failure under hydromechanical coupling. The initiation modes and interaction behaviors of double cracks were investigated by using laboratory tests, and the influences of water pressure were analyzed.
Jie Mei, Wanzhi Zhang, Hiroshi Yoshihara
wiley +1 more source
Comparison of fatigue crack growth of riveted and bonded aircraft lap joints made of Aluminium alloy 2024-T3 substrates – A numerical study [PDF]
, 2017 Aircraft lap joints play an important role in minimizing the operational cost of airlines. Hence, airlines pay more attention to these technologies to improve efficiency.
Crespo Artiaga, Daniel +2 more
core +1 more source
Numerical Simulation of Fracture Behavior of Brittle Solids under I/III Loading
Advances in Civil Engineering, Volume 2020, Issue 1, 2020., 2020 This study used numerical analysis to carry out a large number of numerical model calculations based on a new semicircular bend (SCB) model. Instead of existing numerical computation methods (J‐integral), the M‐integral method was used to calculate the mixed mode fracture parameters (KI, KII, and KIII), investigate the influence of the geometry and ...
Zhitao Zhang +3 more
wiley +1 more source
Stress intensity factors and crack propagation path under mixed mode conditions [PDF]
Journal of Structural and Construction Engineering, 2016 Use of crack propagation principles based on SIFs (stress intensity factors) is among the most common methods of fracture mechanic engineering. SIF is an important parameter in fracture analysis. In analyzing elastic fracture, SIF reveals the stress near
Ramin Faridvand, Mohammad Taghi Kazemi
doaj +1 more source
Surrogate Modeling of High-Fidelity Fracture Simulations for Real-Time Residual Strength Predictions [PDF]
, 2011 A surrogate model methodology is described for predicting, during flight, the residual strength of aircraft structures that sustain discrete-source damage.
Hochhalter, Jacob D. +4 more
core +3 more sources
Fatigue Life Prediction of the Zirconia Fixture Based on Boundary Element Method
Shock and Vibration, Volume 2020, Issue 1, 2020., 2020 Zirconia grinding fixtures have been widely used in semiconductor industry to improve the quality and precision of the products. For maximizing the service life and minimizing the risks of accidental damage, it is critical to have a better understanding of the fatigue life of zirconia grinding fixtures.
Y. W. Wang +5 more
wiley +1 more source