In the present work, the optimization of the abrasive water jet machining (AWJM) process parameters with multiple performance characteristics based on the orthogonal array with the grey relational analysis (GRA) has been studied. Optimization of multiple response characteristics is far more complex compared to optimization of single performance characteristic. A grey relational grade (GRG) calc...

This study examines the transient thermal response of a vertical electrically-heated wall during sensible heating of a turbulent wavy film. It is shown how the wall temperature can be decomposed into two components. The first is steady and accounts for the stream-wise increase in the wall and film temperatures, and the second is periodic and corresponds to temperature fluctuations due to the fi...

A procedure is presented for characterisation of fibre misalignment in composites. It is based on analysis of low magnification images in which the local fibre direction can be inferred from the orientation of elongated features in the image. Specimen preparation and image analysis procedures are presented and their usage is illustrated by application to a carbon fibre composite. Factors affect...

Abstract In this work, Chebyshev particles are used to study the influence of surface roughness and nonsphericity optical characteristics by exploiting parameters particles, namely waviness parameter deformation parameter. This is analyzed comparing scattering, extinction, absorption cross sections, asymmetry parameter, single-scattering albedo, phase function, linear polarization degree differ...

With the increased requirement of miniaturization structures on hard and brittle substrates, micro abrasive air jet turning technology has become a promising machining for manufacturing structures. This paper presents an investigation multi-pass radial-mode fused silica. The effect parameters depth cut materials removal rate was analyzed. waviness striation formation mechanisms were studied. It...