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 > Mechanical and Materials Engineering Articles

Mechanical and Materials Engineering Articles

Our index of selected Mechanical and Materials Engineering articles

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A robust data mining approach for formulation of geotechnical engineering systems

From: Engineering Computations, volume: 28 issue: 3 pp242-274, 2011
The complexity of analysis of geotechnical behaviour is due to multivariable dependencies of soil and rock responses. In order to cope with this complex behaviour, traditional forms of engineering design solutions are reasonably simplified, but incorporating simplifying assumptions into the development of the traditional models may lead to very large errors. The purpose of this paper is to illustrate capabilities of promising variants of genetic programming, namely linear genetic programming, gene expression programming, and multi-expression programming by applying them to the formulation of several complex geotechnical engineering problems.

Robots in the nuclear industry: a review of technologies and applications

From: Industrial Robot, volume: 38 issue: 2 pp113-118, 2011
A frequently voiced view in the early days of the robotics industry was that robots could play a major role in environments that posed a safety threat to humans. Such environments occur widely within the nuclear industries, where radioactive hazards frequently prevent or limit a human presence. Handling heavy radioactive loads such as fuel rods or contaminated waste, conducting test, inspection, maintenance and repair operations in "hot" zones, decommissioning and other tasks have been performed with robots for many years, but, despite this, new robotic systems continue to be developed, often reflecting the challenges posed by decommissioning and more stringent inspection requirements. This article reviews the uses of robots in the nuclear power industry with an emphasis on newer developments and applications.

Innovative titanium dioxide-kaolin mixed pigments performance in anticorrosive paints

From: Pigment & Resin Technology, volume: 40 issue: 1
Kaolin is a soft, white mineral mainly composed of coarse- to fine-grained, plate-like aluminium silicate particles. As kaolin assists with desired rheological properties that help maintain proper dispersion and provide bulk to the product, it is used as an important extender in paint manufacture. It can be used to reduce the amount of expensive pigments, such as titanium dioxide. In spite of these uses, kaolin has the disadvantage of having coarse particles and low hiding power. The purpose of this paper is to introduce a new class of pigments based on kaolin as a core and titanium dioxide as the shell.

Material-modeling and structural-mechanics aspects of the traumatic brain injury problem

From: Multidiscipline Modeling in Materials and Structures, volume: 6 issue: 3
Owing to its resulting high direct and indirect economic costs to society at large (through lost earning potential of the affected and the burden of care imposed on their families), traumatic brain injury (TBI) has become an important societal problem. Among civilians, TBI is mostly caused by motor-vehicle accidents, and sport- and work-related accidents. Among members of the military service, on the other hand, TBI is most often related to their exposure to blast and ballistic threats. The main objective of this paper is to study computationally the interaction between air-borne shock waves and the human skull in order to: assess the ability of this interaction to create potent shock waves within the intra-cranial soft tissue; and to assess the potential of these shock waves to cause TBI.

Grid-enabled collaborative virtual assembly environment

From: Assembly Automation, volume: 30 issue: 4
Virtual assembly is a new product development tool which is being accepted by more and more manufacturing enterprises (Gomes and Zachmann, 1999). With growing product complexity, product development often requires collaborative work among many designers from different departments. However, when the parts designed by one designer are finished, it is difficult to check the quality and ease of product assembly with multiple parts from other designers, making product assembly design and validation more difficult. This paper proposes a new solution for a grid-enabled collaborative virtual assembly environment, by which various computing resources can be effectively shared and integrated for assembly simulations.

Fifty years of the laser: its role in material processing

From: Assembly Automation, volume: 30 issue: 4 pp317-322, 2010
Since their invention in 1960, lasers have emerged to play a critical role in a number of important applications. Major industries such as the automotive, aerospace and electronics sectors are now reliant on lasers to conduct all manner of vital processes, and in addition to traditional uses such as welding and material removal, lasers are now playing a growing role in newer applications such as the production and processing of nanomaterials and advanced photonic devices. The paper aims to provide a review of the use of lasers in industry, with an emphasis on applications in manufacturing and material processing.

Identification of structural damage in buildings using iterative procedure and regularization method

From: Engineering Computations, volume: 27 issue: 8, 930-950
Structural health monitoring (SHM) of civil structures has recently received significant attention in order to assess the safety and reliability of structures during their service life. The objective of SHM is to detect the location and assess the severity of any structural damage that has occurred due to a severe loading event, such as earthquake and hurricane, or long-term deterioration. This paper aims to identify both the location and severity of damage in complex framed buildings using limited noisy vibration measurements. The study aims to directly adopt incomplete measured mode shapes in structural damage identification and effectively reduce the influence of measurement errors on predictions of structural damage.

The flying laboratory for aeronautics students' education

From: Aircraft Engineering and Aerospace Technology, volume: 82 issue: 5 pp320-330, 2010
Practical experience, such as test flights, constitute an important element of the professional preparation for aviation designers and research engineers. However, laboratory stands, including flight simulators, do not emulate many unique characteristics and properties of aircraft and their on-board equipment. This paper describes an initiative to modify an aircraft to be used as a flying didactic laboratory at the Rzeszów University of Technology in Poland.

Study of an environment-friendly insulating coating with high corrosion resistance on electrical steel

From: Anti-Corrosion Methods and Materials, volume: 57 issue: 6 pp297-304, 2010
This paper presents the result of a study of the corrosion resistance and insulating characteristics of an environment-friendly, chromium-free coating on electrical steel.

A new approach for prediction of the stability of soil and rock slopes

From: Engineering Computations, volume: 27 issue: 7 pp878-893, 2010
Analysis of stability of slopes has been the subject of many research works in the past decades. Prediction of stability of slopes is of great importance in many civil engineering structures including earth dams, retaining walls and trenches. There are several parameters that contribute to the stability of slopes. This paper aims to present a new approach, based on evolutionary polynomial regression, for analysis of stability of soil and rock slopes.