A GPU-based Smoothed Particle Hydrodynamics model is used to model the water flooding associated with various types of levee failures. The failures include instantaneous flood wall section failure, a slowly toppling wall, and a dropping wall. The intent of the paper is to illustrate the complex nonhydrostatic flows associated with the levee failures, and their resulting impact on the nearby str...

This paper describes a robotic manipulation primitive called toppling—knocking a part over. We derive the mechanical conditions for toppling, express these as constraints on robot contact locations and motions, and describe an application of toppling to minimalist parts feeding of 3D objects on a conveyor with a 2 joint robot.

because it is not possible to recognize the mechanism of cantilever failure in field studies, this type of common failure in riverbanks is investigated in the laboratory. for this purpose, two samples of susceptible soil that forms an overhanging block in riverbanks are used for physical model tests to determine their physical, chemical and mechanical characteristics. soil blocks of different d...

Flexural toppling failure is a common mode of natural and artificial rock slopes, which has caused serious damage to human life property. In this work, an advanced numerical method called the Universal Distinct Element Code (UDEC) was used study mechanism flexural failure. total, more than twenty slope models were built analyzed. Two new parameters (displacement discontinuity transition coeffic...

Pusa village is located in the karst mountain area of Nayong County, Guizhou Province, China. Laoyingyan rock gently dipping, upper part consists hard formations, and lower made up soft composed 3 coal seams. On August 28, 2017, a massive landslide occurred this area, resulting 82,3000 m3 debris, which resulted significant casualties brought malaise society. In paper, geological conditions long...

This paper describes a manipulation primitive called toppling—knocking a part over. We derive the mechanical conditions for toppling and describe two applications to conveyor-based parts feeding. Toppling complements previous approaches to conveyor-plane feeding, allowing full three-dimensional parts feeding on a constant-speed conveyor.

This paper presents the study of strengthening R/C beams with large circular and square opening located at flexure zone by Carbon Fiber Reinforced Polymer (CFRP) laminates. A total of five beams were tested to failure under four point loading to investigate the structural behavior including crack patterns, failure mode, ultimate load and load deflection behaviour. Test results show that large o...

We consider a sensorless approach to feeding parts on a conveyor belt using pins (rigid barriers) to topple parts into desired orientations. Given the n-sided 2D convex projection of an extruded polygonal part, its center of mass (COM), and coefficients of friction, we develop an O(n) algorithm to compute the toppling graph, a new data structure that represents the mechanics of toppling includi...