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For aerospace vehicles, the development of new materials and structural configurations are key tools in the relentless drive to reduce weight and increase performance (in terms of, for example, speed and flight characteristics). The economic drivers are clear — it is widely recognised that it is worth approximately $10k to save one pound of weight in a spacecraft per launch and $500 per pound for an aircraft over its lifetime. The environmental drivers (ACARE 2050) are also clear — reduced aircraft weight leads to lower fuel burn and, in turn, to lower CO2 and NOx emissions. With such high cost-to-weight ratios, there is intense industrial interest in the development of new structural configurations/concepts and enhanced structural models that allow better use of existing or new materials. Analytical structural mechanics models of novel anisotropic structures, developed at the University's Advanced Composites Centre for Innovation and Science (ACCIS), are now used in the industrial design of aircraft and spacecraft. Based on this research, a new, unique anisotropic composite blade, designed to meet an Urgent Operational Requirement for the MoD, is now flying on AgustaWestland EH101 helicopters that are deployed in Theatre. In addition, the new modelling tools and techniques have been adopted by Airbus, AgustaWestland, Cassidian and NASA and incorporated into LUSAS's finite element analysis software. These tools have, for example, been used to inform Airbus's decision to use a largely aluminium wing design rather than a hybrid CFRP/aluminium wing for the A380.
Dr Richard Brooks and his team at the University of Nottingham have been investigating the high strain rate behaviour of composite materials since 2003. This has led to the development of two products that are being installed in streets in the UK and Ireland by East Midlands SME Frangible Safety Posts Ltd. The direct benefits to the company have been: the installation of 900 products in the UK and Ireland; saving of £17k capital cost and 2 months in terms of time to market per product developed and; raising of £1.8M investment to bring the products to market At least one life has already been saved in the Shetland Islands as a direct consequence of the product behaving in the way it was designed to.
The safe operation of ships is a high priority task in order to protect the ship, the personnel, the cargo and the wider environment. Research undertaken by Professor Alexander Korobkin in the School of Mathematics at UEA has led to a methodology for the rational and reliable assessment of the structural integrity and thus safety of ships and their cargos in severe sea conditions. Central to this impact is a set of mathematical models, the conditions of their use, and the links between them, which were designed to improve the quality of shipping and enhance the safety of ships. The models, together with the methodology of their use, are utilised by the ship certification industry bringing benefits through recognised quality assurance systems and certification.
The Centre for Numerical Modelling and Process Analysis (CNMPA) was asked in 2004 to apply its expertise in computational reliability engineering, usually used in high technology manufacturing, to help save the Cutty Sark ship and in 2010 to help restore the Medway Queen. This case study details how our computational expertise had impact and in particular:
The Digital Architectonics group in the Centre for Advanced Studies in Architecture (CASA) in the Department of Architecture and Civil Engineering at the University of Bath has had continuous engagement with leading architectural and engineering practitioners since its foundation by the internationally renowned civil engineer Professor Sir Edmund Happold in the late 1970s. Its unorthodox digital methods have been fundamental to the recent establishment of architectural geometry as a new specialism in both professions. One feature of this work is the ability to addresses the common problem of how to cover large spaces (such as courtyards and stadium roofs) without relying on intermediate supports (such as columns). The novel structural analysis techniques developed at Bath have led to significant consultancy on major landmark buildings. In particular, the reductions in complexity, risk, and carbon footprint resulting from such an approach have led to a re-emergence of the timber gridshell as a cost-effective and spectacularly low-carbon building solution. The impact has thus been both economic and environmental.
University of Nottingham research into a composite design for steel beams and floor slabs has resulted in environmental and economic benefits and an important change in the construction industry. The work has reduced the weight of beams and the overall tonnage of buildings, enabled easier installation and improved structural strength. More than 40 projects, with a total combined floor area in excess of 380,000m2, have used the technology since 2008, and the method's market share has been estimated at up to 60%. The breakthrough has facilitated partnerships between steel frame designers and precast flooring manufacturers, with the value to the latter alone put at more than £5M.
The development of the bespoke finite element software ICFEP (Imperial College Finite Element Program) is the main research outcome of the numerical group in the Geotechnics Section at Imperial College (IC). The research conducted in the Section since 1993 has led to a substantial growth of ICFEP's modelling capabilities in both complexity and robustness, following closely the advancements in understanding of real soil behaviour achieved through laboratory and field investigations of soils. Between 2008 and 2013 the application of these modelling capabilities to practical engineering problems, which are generally unavailable with a similar degree of sophistication in commercial software, amounts to over 80 projects of which a third are worth multi-billion pounds in global value. The impact of ICFEP's application has been to reduce the geotechnical risk and the cost of design and construction, and to give confidence in the environmental stability of design solutions, by providing accurate predictions of soil response associated with individual projects.
National and International design codes are the key vehicles for enabling structural engineering research to impact on practice. Recent years have seen substantial advancements in such codes for stainless steel structures, to which Imperial has made outstanding contributions [A-E]. Imperial research has led directly to improved structural design provisions, enabling more efficient structures, leading to cost savings [G], further promotion of the use of stainless steel in construction [A,H,I] and a reduction in the use of construction resources. The impact and reach of Imperial's research has not only been throughout the industry (producers [H], code writers [A] and practitioners [G,I]) but also global, with widespread influence on UK, European, North American and Asian practice [A].
Research in the Department of Civil and Structural Engineering at the University of Sheffield on dynamic performance and vibration serviceability has contributed to internationally applied guidance on building serviceability for floors, buildings, stadia and other structures and has led to the spin-out Full Scale Dynamics Ltd (FSDL). Based on our research FSDL provides applied research and consultancy services, and has delivered projects approaching £1m since 2008. FSDL has demonstrated significant reach through its work with blue chip clients nationally and internationally. Our research has impacted on leading national sport infrastructure (such as Premiership Football stadia and notably the Olympic 2012 Velodrome) and public companies to deliver economic benefits by providing evidence based compliance, demonstrating that stadia, hospitals, manufacturing plants and other public structures comply with safety and vibration serviceability standards. Interventions based on our research and implemented via FSDL have, on numerous occasions, avoided potentially serious economic and safety consequences due to the poor vibration performance of structures.
ERPE research, since 2001, into the application of Fibre Reinforced Polymer (FRP) composites for strengthening existing civil engineering structures continues to impact design guidelines for preserving and updating the worldwide ageing infrastructure. The lifetime extension of existing infrastructure and buildings is a priority: the UK Government plans to invest up to £250bn over 10 years to return UK infrastructure to `world class' performance. 75% of developed world infrastructure investment covers retrofitting and repair rather than new-build. FRP strengthening is now the method of choice for seismic retrofit, capacity enhancement, structural repair and rehabilitation of concrete and masonry structures.
ERPE research to enhance strength and structural integrity has been used in the development of, or been incorporated into, at least 12 design guides codes and standards worldwide in at least 5 countries including Australia, Canada, China etc.