Spallation is a fracture mode commonly observed in ballistically/blast-wave-loaded structures. The interaction between decompression waves generated within the target structure produces tensile stresses which, if of a sufficient magnitude, may cause material damage and ultimate fracture (spallation). In this study, the phenomenon of spall-fracture is analyzed within a one-dimensional Lagrangian...

An Expert System for aid in material selection process is proposed, which in conjunction with TOPSIS(Technique for Order Preference by Similiarity to Ideal Situation) method[l] provides a very effective and efficient technique of material selection for a component. TOPSIS is a highly advanced optimization technique, which requires that user provides relative importance to different properties b...

In order to optimize product designs it is necessary to quickly evaluate many candidate materials in terms of performance and processing costs. Evaluation using physical prototypes yields concrete results but is time intensive and costly when dealing with multiple optimization objectives. As an alternative, computer aided simulation is a reliable means of material evaluation and selection, is i...

13 Within the framework of the European project EcoBioCap (ECOeffi14 cient BIOdegradable Composite Advanced Packaging), aiming at con15 ceiving the next generation of food packagings, we have designed an 16 argumentation-based tool for management of conflicting viewpoints 17 between preferences expressed by the involved parties (food and pack18 aging industries, health authorities, consumers, w...

Proof. To prove this theorem, we will use a simple argument that can be thought of as a proof by probabilistic induction. Towards this end, we will let Ek be the event that Algorithm 1 succeeds at iteration number k. Notice that k takes values in the set {1, 2, . . . , blog2(2p)c} since the algorithm terminates when the (doubling) counter satisfies ` = 2k−1 ≥ 2p. We can characterize the event E...

The material and manufacturing process selection problem is a multi-attribute decision making problem. These decisions are made during the preliminary design stages in an environment characterized by imprecise and uncertain requirements, parameters, and relationships. Material and process selection decisions must occur before design for manufacturing can begin. This paper describes a prototype ...

1. Correlations with weight at slaughter (SltWt) SltWt, DFI: For cattle, weighted mean estimates from the 6 studies cited by Arthur and Herd (2008) and Crowley et al. (2010) are: rg = 0.72, rp = 0.61, for weight (during a feed efficiency test) with DFI measured over at least 50 days. Genetic correlations of weight with DFI in lambs are similar (rg = 0.85, François et al., 2007; rg = 0.71 ± 0.11...

Effective use of labor, providing system flexibility, increasing productivity, decreasing lead times and costs are some of the most important factors influencing selection of material handling equipment. In this study, a decision support system (MHAD) considering these factors for material handling equipment selection is developed. MHAD consists of a database, a rulebased system and multi-attri...

Article history: Received October 15, 2011 Accepted 10 March 2012 Available online 12 March 2012 The recent development of world is being adversely affected by the scarcity of power and energy. To survive in the next generation, it is thus necessary to explore the non-conventional energy sources and efficiently consume the available sources. For efficient exploitation of the existing energy sou...