The probability P(F) represents the searched ecodesign function; a function that has multiple variables and lies between the values of 0 and 1, and is defined by f(Q=xi, H=yi, E=Zi). However, according to the nature of sets Q, H and E (independent or dependent) and the rules of multiplication in the probability theory, two possible […]
Category: ADVANCES IN COMPOSITE MATERIALS – ECODESIGN AND ANALYSIS
Application of probability principles to ecodesign function
1.2 Probability approach To illustrate the model-set probability, let us consider the sample space Q that contains all the possible subsets (events) defined by Equation (1) and illustrated in Figure 3. Since the three key sets Q, H and E are composed of several variable elements associated to the different stages involved in the design […]
Ecodesign model and sample space
As it was shown in Figure 2c, the interaction between the three Q-H-E aspects yields the apparition of a certain number of events, which are illustrated in Figure 3. Each event is assumed to accomplish one or several functions that are defined by the following subsets (Attaf, 2007) • Subset A (■): characterized by an […]
Evolution of the interaction between Q-H-E aspects
The main condition of ecodesign can be reached when the interaction between Q, H, E aspects yields a common area of intersection between these aspects, i. e., Qt^Ht^E. The original diagram (Figure 2a) shows health, quality and environment as three separate aspects that operate independently from each other. Joining the Q, H, E aspects gives […]
Ecodesign of composite materials and structures
1.1 Position of ecodesign approach within sustainable development concept According to most scientific results related to the protection of biodiversity, global warming and climate change may have severe effects on human health and the environment. To improve the well-being and living conditions of present and future generations, it is important that the negative impacts generated […]
Generation of New Eco-friendly Composite Materials via the Integration of Ecodesign Coefficients
Brahim Attaf Expert in Composite Materials & Structures France 1. Introduction Thanks to their excellent formability, their mass-saving advantage, their high stiffness-to- density and strength-to-density ratios, i. e., E/p and ст/р and the greater freedom to tailor these high properties in the desired orientation and position, fibre-reinforced polymer (FRP) composites are used in many fields […]
Expert in Composite Materials
Studies and research activities conducted in the field of high-technology materials show that advanced composite materials are successfully used in key components for many fields of applications, from aerospace & automobile industries, marine construction, renewable energy, modern medicine to micro-/nano-material technologies, including other more complex civil and mechanical engineering assemblies. In addition to this variety […]