170 citations · 659 across the 16 of their papers we have counts for
16 papers
Macroscopic analysis of time dependent plasticity in Ti alloys
Yi Xiong, Phani S. Karamched, Chi-Toan Nguyen +4
Component failure due to cold dwell fatigue of titanium and its alloys is a long-standing problem which has significant safety and economic implications to the aviation industry. T…
Computation of Burgers Vectors from Elastic Strain and Lattice Rotation Data
Jacques Cloete, Edmund Tarleton, Felix Hofmann
A theoretical framework for computation of Burgers vectors from strain and lattice rotation data in materials with low dislocation density is presented, as well as implementation i…
Cold dwell behaviour of TiAl alloy: Understanding load shedding using digital image correlation and crystal plasticity simulations
Yi Xiong, Nicolo Grilli, Phani S. Karamched +3
Digital image correlation (DIC) and crystal plasticity simulation were utilised to study cold dwell behaviour in a coarse grain Ti-6Al alloy at 3 different temperatures up to 230 C…
Evaluation of local stress state due to grain-boundary sliding during creep within a crystal plasticity finite element multi-scale framework
Markian Petkov, Elsiddig Elmukashfi, Edmund Tarleton +1
Previous studies demonstrate that grain-boundary sliding could accelerate creep rate and give rise to large internal stresses that can lead to damage development, e.g. formation of…
Characterisation of slip and twin activity using digital image correlation and crystal plasticity finite element simulation: Application to orthorhombic -uranium
Nicolò Grilli, Philip Earp, Alan C. F. Cocks +2
Calibrating and verifying crystal plasticity material models is a significant challenge, particularly for materials with a number of potential slip and twin systems. Here we use di…
An in-situ synchrotron diffraction study of stress relaxation in titanium: Effect of temperature and oxygen on cold dwell fatigue
Yi Xiong, Phani S. Karamched, Chi-Toan Nguyen +5
There is a long-standing technological problem in which a stress dwell during cyclic loading at room temperature in Ti causes a significant fatigue life reduction. It is thought th…