Results 51 to 60 of about 2,467 (201)
Characterisation of fatigue crack growth using the CJP model of crack tip fields or plastic CTOD
Procedia Structural Integrity, 2019 Abstract This paper provides an update on the current status of work that has been done to validate the CJP model of crack tip stresses and also summarises some findings from linked work that has used DIC to determine the range of plastic crack tip opening displacement as a correlator of fatigue crack growth rate.
James, M. N. +5 more
openaire +2 more sources
Advanced Engineering Materials, Volume 26, Issue 16, August 2024.We measured two values of fracture toughness for X65 steel in air (KQ of 369 and 487 MPa√m$\sqrt{} \text{m}$) and two essentially American Society for Testing of Materials–valid values of fracture toughness of KJ1C of 150 and 189 MPa√m$\sqrt{} \text{m}$ for X65 subjected to in situ hydrogen charging thought to be equivalent to a hydrogen gas pressure ...
Md Fahdul Wahab Chowdhury +11 more
wiley +1 more source
Engineering Reports, Volume 6, Issue 8, August 2024.In present research the fracture behavior of carbon fabric‐epoxy composites was evaluated with the addition of 0.1, 0.2, 0.5, and 0.75 weight percentages of carbon nano tubes at different temperatures. Abstract In present research the fracture behavior of carbon fabric‐epoxy composites (CE composites) was evaluated with the addition of 0.1, 0.2, 0.5 ...
M. D. Kiran +9 more
wiley +1 more source
Fracture Assessment of Weld Joints of High-Strength Steel in Pre-Strained Condition
Applied Sciences, 2019 Unstable fractures tend to occur after ductile crack initiation or propagation. In most collapsed steel structures, a maximum 15% pre-strain was recorded, at the steel structural connections, during the great earthquake of 1995, in Japan. Almost-unstable
Gyubaek An +3 more
doaj +1 more source
A numerical analysis of the relation between CTOD and fatigue crack growth [PDF]
, 2016 El cálculo de la vida a fatiga durante la etapa de propagación de la grieta se suele realizar relacionando da/dN con ΔK. Sin embargo, la influencia que en estos análisis tiene el parámetro ΔK debe recaer en algún otro parámetro no lineal cercano al ...
Antunes, F.V. +2 more
core
A strain-based approach to study interaction between non-coplanar through-thickness edge notches
, 2018 Structural integrity assessment procedures to assess the effect of interaction between multiple adjacent flaws normally consist of two stages. First, alignment rules categorize non-coplanar flaws as aligned or non-aligned.
De Waele, Wim +2 more
core +1 more source
Computing the stress intensity factor range for fatigue crack growth testing at 20 kHz
Engineering Reports, Volume 6, Issue 6, June 2024.A comparative study on the computation of the SIF at 20 kHz load frequency. Results from different simulation procedures are presented and discussed. Abstract Inertia and damping influence the values of the stress intensity factors (SIFs) at high‐frequency loading and they must be included in computations.
Mohamed Sadek +2 more
wiley +1 more source
A Numerical Study of the Effect of Isotropic Hardening Parameters on Mode I Fatigue Crack Growth
Metals, 2020 The consideration of plastic crack tip opening displacement (CTOD, δp), as a crack driving force has given us the opportunity to predict fatigue crack growth (FCG) rate numerically, and, therefore, to develop parametric studies focused on the effect
M. F. Borges +3 more
doaj +1 more source
Experimental and numerical analysis of deformation patterns in notched heterogeneous welds [PDF]
, 2017 Standardized weld flaw assessment techniques assume the weld region to be homogeneous which is a strong idealisation of reality. Characterising the effects of heterogeneous properties of welds through the analysis of deformation patterns and slip lines ...
De Waele, Wim +4 more
core +2 more sources
The fatigue crack growth behavior of hydrogenated 9Cr‐1Mo steel: An experimental and numerical study
Fatigue &Fracture of Engineering Materials &Structures, Volume 47, Issue 5, Page 1677-1695, May 2024.Abstract This research investigates the fatigue crack evolution in P91 steel through experiments and extended finite element method (XFEM) simulation for as‐received and hydrogenated conditions. Hydrogen pre‐charging is performed using a constant current electrochemical method in 1 M sulfuric acid solution.
Mahesh Bharati +3 more
wiley +1 more source