Quality modeling and analysis of polymer composite products

Abstract

The present article gives a new direction for quality modeling and analysis of polymer matrix composite products. Quality of composite products depends upon conformance of requirements of the customer. These requirements are translated into design specifications of all the contributing factors and subsystems up to component level of composite system. Quality of interaction amongst different subsystems, sub-subsystems, and other factors affects quality of products are also to be considered. Therefore, the present article considers quality of subsystems as well as quality of all interactions together and modeled using graph theory, matrix algebra as quality graph, quality matrix, and quality permanent function of the composite product. These models are useful to design quality of every subsystem and factors in such a manner that can lead to achieve sixsigma limits (almost zero error) i.e. 3.34 defects per million products produced. A number of analytical tests derived from these models help to carry out optimum selection of qualities of subsystems and interactions for designing competitive composite products. SWOT (strength-weakness-opportunities-threats) analysis integrated with these models becomes very powerful tool to convert an unsuccessful product into successful competitive product. Evaluation, ranking, and comparison procedures can be developed with the help of these proposed models. Coefficients of similarity and dissimilarity are developed for comparison among feasible products.Step-by-Step procedure based on systems approach is useful to designer, manufacturer at conceptual stage of design, and during manufacturing stages of composite products. This is basically a virtual prototyping methodology of complete system, leading to high quality competitive composite products. POLYM. COM-POS., 27:329 -340, 2006.

Optimum Selection of a Composite Product System Using MADM Approach

“…The attributes are found out based on the selection of five subsystems for a composite product system developed as resin system, reinforcement system, process equipment system, tooling system and product design [6]. They are listed in Table 1.…”

“…The present paper starts with the identification of attributes for maintaining reliable and electronic database. The attributes are identified under five subsystems [6] of composite by considering composite product as a system in totality. These attributes play a significant role in selection of suitable resin system, reinforcement system, tooling system, processing equipment system, and product design system for producing the final composite products ranging from very big structures (aerocraft or boat hull) to small parts like screw rotors for air compressors.…”

“…For all the processes proper selection of subsystems is very important to get the final desired composite structures. A few papers give detailed information about various subsystems [6,7] of composite product and its interactions between them. According to quantitative structure activity relationship (QSAR) and quantitative structure property relationship (QSPR) studies for composite product reveal that there is a strong relationship between morphological structure, processing and properties of polymer matrix composites [8,9].…”

“…Till now none of them applied the proposed methodology for composites field that to, by considering the various attributes that are mainly related to five sub-systems of composite product system [6].…”

Three‐dimensional flow simulation of resin transfer molding utilizing multilayered fiber preform

“…[18][19][20][21] Mold filling simulation has been also carried out based on these various simulation methods. However, the complexity and calculating time for simulation was significantly increased when the calculation domain and mesh should be regenerated at every time step as the flow front advances in the Lagrangian methods.…”