Fracture is an extreme limit state in steel structures, often precipitating structural failure or
serious loss of function. Methods to predict fracture in civil structures include traditional …

Creep tests on Ni-based single-crystal superalloy sheet specimens typically show greater
creep strain rates and/or reduced strain or time to creep rupture for thinner specimens than …

The last few decades have witnessed an increasing emphasis on the development of strain-
based approach for predicting the creep life or damage of components operating at elevated …

A rate-(in) dependent constitutive model for porous single crystals with arbitrary crystal
anisotropy (eg, FCC, BCC, HCP, etc.) containing general ellipsoidal voids is developed. The …

Advances in the theory of plasticity and damage of metallic materials are driven by the
demand to improve performance and safety of structures and machine parts while reducing …

Three dimensional finite deformation finite element analyses of unit cells containing a single
initially spherical void are carried out. The materials are characterized by a rate power law …

The effect of crystal orientation on porosity evolution in a face centered cubic (fcc) single
crystal subject to tensile creep loading is analyzed. The matrix material is characterized by a …

A study on the role of the irregular geometry of the α-Al 2 O 3 film during the creep rupture
test was conducted on samples of DD6 Ni-based single-crystal superalloy at 980° C/250 …

This paper presents a homogenization-based constitutive model for the finite-strain,
macroscopic response of porous viscoplastic single crystals. The model accounts explicitly …

This work investigates the effect of cyclic loading upon periodic elasto-plastic porous
materials. The aim is to understand the evolution of the underlying microstructure, described …