Since the growth and improvement of digital computers there have been significant changesin the way that surfaces can be measured and viewed. The ‘parameter rash’ that occurred intwo-dimensional measurements [1] is being avoided by standardising 3 dimensionalparameters before the techniques have wide spread use. Huddersfield University is headingmuch of this standardisation work...

the aim of this paper is to develop a systematic method to analyze the effects of forming parameters on the quality of part formability and determine the optimal combination of the forming parameters for the sheet hydroforming process. in this paper, the effects of four important process parameters namely fluid pressure, friction coefficient at blank/punch interface, gap between die rim block a...

Abstract To increase the usage of high-strength steel and aluminium alloy sheets for lightweight automobile body panels, joinability sheet combinations including a 780-MPa an A5052 by mechanical clinching self-pierce riveting was investigated different tool shapes in experiment. All except two riveting, i.e., sheets, steel-aluminium were successfully joined both joining methods without gaps amo...

The application of external post-tensioned steel bars as an effective way to strengthen an existing bridge has been so far used in many different countries. In recent decades, however, they have been replaced by bars made from Carbon Fiber Reinforced Polymer (CFRP), as a material with high tensile strength and corrosion resistance, to address several concerns with steel bars such as their appli...

For the production of hot rolled steel it is of special interest to assess the homogeneity of the material along the length of the strip. Being couplant free, laser ultrasound as a method is especially suited for the task because it opens up the opportunity of measuring material parameters early in the production process. Detailed models of the ultrasonic signal are needed though in order to ex...

Deformation-processed metal-metal composites (DMMC) of Mg-Li alloys containing steel reinforcing fibers were prepared by infiltrating a preform of steel wool with the molten matrix. The Li content was varied to control the crystal structure of the matrix; Mg-4 wt pct Li is hexagonal close packed (hcp), while Mg-12 wt pct Li is body-centered cubic (bcc). The low carbon steel used as the reinforc...

Induction heating is a typical application field for high-frequency power supplies whose operating frequencies range from one to several hundred kilohertz. Induction heating applies an alternating magnetic field generated from the current flow in a coil to the conductive matter to be heated. This induces eddy currents on the conductive matter, those currents generate joule loss due to the matte...

The proposed light-frame structure comprises steel columns for vertical loads and an innovative bracing system to efficiently resist seismic actions. This seismic force resisting system consists of a light timber frame braced with an Oriented Strand Board (OSB) sheet and an external technoprene plaster-infilled slab. Steel brackets are used as foundation and floor connections. Experimental cycl...