Temperature Independences of Fatigue Crack Growth in Ti–0.49 mass%O

High-Temperature Cyclic Fatigue-Crack Growth in Monolithic Ti3SiC2 Ceramics

identical slip planes) and walls or kink boundaries. Thus, in addition to regular slip, mechanisms for ambient temperature The cyclic fatigue behavior of reactive hot-pressed Ti3SiCz plastic deformation in Ti3SiCz are thought to involve the ceramics are examined at temperatures from ambient to 1200°C readjustment of local stress and strain fields from kink band with the objective of characteriz...

High Temperature Fatigue Crack Propagation in INCONEL718

Thermal activation of fatigue crack growth: analysing the mechanisms of fatigue crack propagation in superalloys

A method for deriving apparent activation energies, Eapp, for fatigue crack growth (FCG) is presented. It is shown how these Eapp values can be used to analyse the main underlying mechanism causing the progression of the crack. The Eapp values for fatigue crack growth in air and vacuum, and with and without a dwell are obtained for a range of Ni based superalloys for turbine disc applications. ...

Fatigue Crack Growth in Adhesive Joints

Adhesive joining is recognized as a potential enabling technology for a variety of material systems being considered in automotive structures where traditional fastening methods would be inappropriate. Well known examples include fiber reinforced composites and polymers. Additionally in certain circumstances, adhesive bonding of steel structures can provide benefits such as improved stiffness a...

A cohesive model of fatigue crack growth

We investigate the use of cohesive theories of fracture, in conjunction with the explicit resolution of the near-tip plastic fields and the enforcement of closure as a contact constraint, for the purpose of fatiguelife prediction. An important characteristic of the cohesive laws considered here is that they exhibit unloadingreloading hysteresis. This feature has the important consequence of pre...