Author
A.G. Mamalis
Bio: A.G. Mamalis is an academic researcher from National Technical University of Athens. The author has contributed to research in topics: Ceramic & Diamond. The author has an hindex of 31, co-authored 134 publications receiving 3105 citations.
Topics: Ceramic, Diamond, Finite element method, Explosive material, Machining
Papers published on a yearly basis
Papers
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TL;DR: A review of composite materials for crashworthiness applications can be found in this article, where a selection of methods for predicting composite material energy absorption capability is presented and consideration is given to some of the more practical aspects of employing composite materials in crashworthiness purposes.
264 citations
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TL;DR: In this paper, the impact test results of thin-wall square FRP (fibre reinforced plastic) tubes that were impact tested at high compressive strain rate were compared to the response of the same tubes in static axial compressive loading.
207 citations
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TL;DR: In this article, the results of experimental works pertaining to the crash behaviour, collapse modes and crashworthiness characteristics of carbon fiber reinforced plastic (CFRP) tubes that were subjected to static axial compressive loading are presented in detail.
195 citations
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TL;DR: In this article, the LS-DYNA3D explicit finite element code is used to investigate the compressive properties and crushing response of square carbon FRP (fibre reinforced plastic) tubes subjected to static axial compression and impact testing.
160 citations
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TL;DR: In this article, the authors share with you and exchange some ideas in a very important engineering area nowadays, from industrial, research and academic point of view, namely ultraprecision advanced manufacturing and nanotechnology.
113 citations
Cited by
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TL;DR: The use of clays and iron-oxide minerals as catalysts of Fenton-like reactions is a promising alternative for the decontamination of soils, groundwaters, sediments, and industrial effluents as discussed by the authors.
758 citations
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TL;DR: In this article, the common shapes of collapsible energy absorbers and different modes of deformation of the most common ones are reviewed, such as axial crushing, lateral indentation, lateral flattening, inversion and splitting, while noncollapsible systems such as lead extrusions or tube expansions are considered to be beyond the scope of this review.
Abstract: This paper reviews the common shapes of collapsible energy absorbers and the different modes of deformation of the most common ones. Common shapes include circular tubes, square tubes, frusta, struts, honeycombs, and sandwich plates. Common modes of deformation for circular tubes include axial crushing, lateral indentation, lateral flattening, inversion and splitting. Non-collapsible systems, such as lead extrusions or tube expansions, are considered to be beyond the scope of this review.
590 citations
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TL;DR: In this article, the authors reviewed relevant literature which deals with various manifestations of energy absorption of composites from the nano to the macro-scale, with emphasis on the nano-scale.
472 citations
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01 Jul 2006
TL;DR: This paper reviews the research literature on manufacturing process planning, scheduling as well as their integration, particularly on agent-based approaches to these difficult problems and discusses major issues in these research areas.
Abstract: Manufacturing process planning is the process of selecting and sequencing manufacturing processes such that they achieve one or more goals and satisfy a set of domain constraints. Manufacturing scheduling is the process of selecting a process plan and assigning manufacturing resources for specific time periods to the set of manufacturing processes in the plan. It is, in fact, an optimization process by which limited manufacturing resources are allocated over time among parallel and sequential activities. Manufacturing process planning and scheduling are usually considered to be two separate and distinct phases. Traditional optimization approaches to these problems do not consider the constraints of both domains simultaneously and result in suboptimal solutions. Without considering real-time machine workloads and shop floor dynamics, process plans may become suboptimal or even invalid at the time of execution. Therefore, there is a need for the integration of manufacturing process-planning and scheduling systems for generating more realistic and effective plans. After describing the complexity of the manufacturing process-planning and scheduling problems, this paper reviews the research literature on manufacturing process planning, scheduling as well as their integration, particularly on agent-based approaches to these difficult problems. Major issues in these research areas are discussed, and research opportunities and challenges are identified
424 citations
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TL;DR: In this article, a comprehensive overview of the recent developments in the area of crashworthiness performance of thin-walled (TW) tubular components is given with a special focus on the topics that emerged in the last ten years such as crashworthiness optimisation design and energy absorbing responses of unconventional TW components including multi-cells tubes, functionally graded thickness tubes and functionally graded foam filled tubes.
Abstract: Over the past several decades, a noticeable amount of research efforts has been directed to minimising injuries and death to people inside a structure that is subjected to an impact loading. Thin-walled (TW) tubular components have been widely employed in energy absorbing structures to alleviate the detrimental effects of an impact loading during a collision event and thus enhance the crashworthiness performance of a structure. Comprehensive knowledge of the material properties and the structural behaviour of various TW components under various loading conditions is essential for designing an effective energy absorbing system. In this paper, based on a broad survey of the literature, a comprehensive overview of the recent developments in the area of crashworthiness performance of TW tubes is given with a special focus on the topics that emerged in the last ten years such as crashworthiness optimisation design and energy absorbing responses of unconventional TW components including multi-cells tubes, functionally graded thickness tubes and functionally graded foam filled tubes. Due to the huge number of studies that analysed and assessed the energy absorption behaviour of various TW components, this paper presents only a review of the crashworthiness behaviour of the components that can be used in vehicles structures including hollow and foam-filled TW tubes under lateral, axial, oblique and bending loading.
406 citations