Near-field co-seismic GPS data were used to derive the slip distribution of the 12 May 2008 Wenchuan earthquake. Based on field measurements and geological observations, the earthquake is represented by ruptures on the Beichuan fault and a neighboring fault from Pengxian to Guanxian, both dipping with a decreasing angle with depth. Using a layered elastic crust model, we obtained a slip model t...

Starting from the beginning of the 20-century, slip-forming is widely used in formwork due to fast concrete work. Slip-forming is one of the potential concrete formwork methods that improves speed and productivity of repetitive vertical concrete work. Typical projects that employ this technique are: silos, core of high-rise buildings, telecommunication towers, cooling towers, heavy concrete off...

A rigorous analysis of slip-dependent damping for an ultrasonic torsional composite oscillator is presented. This versatile experimental system has recently been used to measure surface slip of a Newtonian fluid. Initially, the phenomenon of finite surface slip and the slip length is considered for a half-space of Newtonian fluid in contact with a smooth, oscillating solid surface. Definitions ...

Due to its high diffusivity, hydrogen is often considered a weak inhibitor or even a promoter of dislocation movements in metals and alloys. By quantitative mechanical tests in an environmental transmission electron microscope, here we demonstrate that after exposing aluminium to hydrogen, mobile dislocations can lose mobility, with activating stress more than doubled. On degassing, the locked ...

Far-field high-energy X-ray diffraction microscopy is used to asses the evolution of slip system strengths in hexagonal close-packed (HCP) Ti-7Al during tensile deformation in-situ. The following HCP slip system families are considered: basal 〈a〉, prismatic 〈a〉, pyramidal 〈a〉, and first-order pyramidal 〈cþ a〉. A 1 mm length of the specimen's gauge section, marked with fiducials and comprised of...

Molecular dynamics (MD) simulation is used to study slip at the fluid-solid boundary in an unsteady flow based on the Stokes’ second problem. An increase in slip is observed in comparison to the steady flow for shear rates below the critical shear rate of the corresponding steady flow. This increased slip is attributed to fluid inertial forces not represented in a steady flow. An unsteady mathe...

At the 2016 Kumamoto earthquake, surface ruptures were observed not only along the Futagawa fault, where main ruptures occurred, but also along the Hinagu fault. To estimate the slip distribution on these faults, we extend a method of nonlinear inversion analysis (Fukahata and Wright in Geophys J Int 173:353-364, 2008) to a two-fault system. With the method of Fukahata and Wright (2008), we can...

A hybrid slip model combined an Asperity model and k model for predicting near-field strong ground motion is proposed in this paper. Firstly, the asperity model charactering lower wave number of slip distribution is estimated based on works of Wang (2004), Wang and Tao (2004a, b). Secondly, k square slip model charactering higher wave number of slip distribution was determined based on research...

This study investigated the influence of the presence and timing of cutaneous vibration cues supplied to the finger pad on the perception of slip of a contact surface slid beneath it. We designed an apparatus that made it possible to supply precisely controlled shear force, sliding displacement and vibration cues to the finger pad via a moving surface. We conducted an experiment to assess the e...