Slant strained band development during flat to slant crack transition in AA 2198 T8 sheet: in situ 3D measurements

Study of the flat to slant crack transition in ductile thin sheet material: Simulations and experiments

1 Mines ParisTech, Centre des matériaux, CNRS UMR 7633, BP87 91003 Evry Cedex, France [email protected] Flat to slant crack transition can typically be observed in ductile thin sheet materials. The crack initiates perpendicularly to the loading direction from the notch and then turns to 45° with respect to the loading direction during crack propagation. This phenomenon is, how...

Characterization and modeling of ductile rupture with relationship of microstructures in 2198 Al-Li alloy for aeronautic application

Damage and fracture mechanisms of two 2198 Al-Li thin sheet alloys having different thicknesses (2 and 6 mm) are investigated. Two heat treatments are studied: T3 and T8. Mechanical tests are carried out on flat specimens including smooth tensile samples and U-notched specimens (with various notch radii). Test data are used to identify the parameters of constitutive equations describing plastic...

Dissociations between slant-contrast and reversed slant-contrast

A vertical test probe is misperceived as slanted in the opposite direction to an inducer when disparity specifies the inducer slant while monocular cues specify a frontoparallel surface (slant-contrast). In reversed cue conditions with vertical axis slant the test probe is misperceived as slanted in the same direction as the inducer (reversed slant-contrast). We found reliable slant-contrast an...

Slant Grammar Calculus

A slant removal algorithm

A robust optical character recognition (OCR) system has to be able to cope with slanted words. Such words may dramatically a!ect the performance of the segmentation algorithms. Even in cases where segmentation is not a prerequisite, the training procedure of the recognition module is more di$cult and complicated while attempting to cover slanted characters or words. Watanabe [1] conducted compa...