This contribution introduces a multiscale fracture model that aims to take the microstructural length scale effects into account in brittle failure. is formulated framework of Cosserat continuum theory and coupled with phase field approach failure describe complex crack paths. The effectiveness proposed method demonstrated using two cases: shear propagation problem interaction problem. first be...

A new experimental approach is used to quantify the full field heterogeneous strain accommodation associated with martensitic phase transformation in Nickel–Titanium at the microstructural length scale. Local deformation measures were matched with underlying microstructural characteristics obtained by EBSD, providing point-by-point correlation between transformation extent and microstructure. I...

The most recently developed high temperature materials are known as in-situ composites or directionally solidified eutectics. Since the composites are formed during solidification, they have excellent morphological stabilities up to near their melting temperatures. The Ni-Al-Mo system has received the greatest attention for recent several years(1)~(3) since the alloy is expected to form a struc...

This paper examines how noise in observed option prices arising from discrete prices and other microstructural frictions affects empirical tests of option pricing models and risk-neutral density estimation. The discrete tick size alone introduces enough noise to make model comparisons difficult, especially for lower-priced stocks. We demonstrate that microstructural noise can lead to incorrect ...

The present paper investigates the importance and relevance of using microstructural length scale parameters in estimating the high-cycle fatigue strength of notched plain concrete. In particular, the accuracy and reliability of the Theory of Critical Distances and Gradient Elasticity are checked against a number of experimental results generated by testing, under cyclic bending, square section...

Corticocortical functional interactions between the primary motor cortex (M1) and secondary motor areas, such as the dorsal (PMd) and ventral (PMv) premotor cortices and the supplementary motor area (SMA) are relevant for residual motor output after subcortical stroke. We hypothesized that the microstructural integrity of the underlying white matter tracts also plays a role in preserved motor o...

Original scientific paper The microstructural transformations which took place during the welding of duplex steel as well as their influence on the resistance to particle erosion wear and cavitation erosion wear were investigated. A sample was cut from a 1.4462 rolled steel plate and heat treated in order to obtain a microstructure which would resemble, as closely as possible, the actual welded...