We propose an model-based approach to address safety and security assessment of a system architecture. We present an integrated process where system engineers design the model of the system architecture, safety and security engineers specify the propagation of failures and attacks inside each component of the architecture using their dedicated tool. They also define the failure modes that have ...

This paper aims to define the best building orientation for parts manufactured with the laminated object manufacturing technique (LOM), to enhance their flexural performance. Previous research has shown that parts manufactured with LOM have the ability to withstand higher deflections than components created through other layer manufacturing techniques, but, so far, no relation between the build...

Lifetime estimation is one of today's frequently used reliability testing tool. There are standardized test methods, mathematical apparatus and failure acceleration models for predicting failure rate of electronic components, circuit modules or equipment. Do the widespread used models give a precise description for all kind of failure mechanisms? Can they define the acceleration factor of any t...

Trains of DB Schenker Rail AG create a continuous logfile of diagnostics data. Within the company, methods to use this data in order to increase train availability and reduce costs are researched. An interesting and promising application is the prediction of train component failure. In this paper, we developed and evaluated a method that utilizes the diagnostic data to predict future component ...

BDI programming languages provide a well developed route to implementing intelligent agents. However, as such agents are increasingly being used to work in, and interact with, real environments their treatment of external actions needs to be improved. In this paper we describe a mechanism for handling actions which have durations and failures. In particular we note that where an action has a du...

Information-centric networks are an interesting new paradigm for distributing content on the Internet. They bring up many research challenges, such as addressing content by name, securing content, and wide-spread caching of content. Caching has caught a lot of attention in the research community, but a lot of the work su↵ers from a poor understanding of the di↵erent metrics with which caching p...

This paper presents observed failure modes for a geobag structure from a series of physical modeltests. Six hundred bags were employed to observe the failure in terms of friction force, water depth, flow rateand bag aging. Three different failures are reported. An analysis of the effect of bag aging shows that 52% ofsaturated bags gain weight in the range 0 to 5% and about 70% of in...

Timed Failure Propagation Graphs (TFPGs) are used in the design of safety-critical systems as a way of modeling failure propagation, and to evaluate and implement diagnostic systems. TFPGs are mostly produced manually, from a given dynamic system of greater complexity. In this paper we present a technique to automate the construction of TFPGs. It takes as input a set of failure mode and discrep...

The maintenance dataset provided by SunWater contains information about failed assets also known as components and their corresponding failure modes. Currently, extraction of this information from the dataset been conducted in a manual manner, which is very tedious, time consuming and cumbersome work. It is necessary to discover an automatic method to decide/extract the failure mode. This paper...

The ultimate tensile behaviour of fibre-reinforced cementitious composites is closely related to its failure mechanisms which in turn are dependent on reinforcement parameters such as fibre characteristics and the fibre/matrix interface properties. Based on the direct tensile tests of mortar specimens reinforced with various synthetic fibres, this paper attempts to explain such relationships an...