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The vulnerability of both military and civilian infrastructure to the threat of terrorist activity has highlighted the need to improve its survivability, and this poses a significant design challenge to engineers. Research work at Imperial has led to the development of novel constitutive relationships for polymeric materials coupled to novel analysis procedures; software algorithms for effective simulations of blast and impact events; and enhanced experimental testing methods allowing a fundamental understanding of the structures. According to Dstl, this body of research has `unquestionably improved the security and effectiveness of the UK armed forces operating in hostile environments abroad as well as the safety of citizens using metropolitan infrastructure within the UK'. The techniques have been applied to vehicles and UK infrastructure, including for high profile events, such as the 2012 Olympics.
Research at the University of Cambridge Department of Engineering (DoEng) has led to the creation of a method for measuring strain throughout a range of civil engineering structures using Distributed Fibre Optic Sensing (DFOS) and computing the stresses in these structures. This detailed information and associated insights have reduced reliance on conservative safety margins, while giving greater assurance of safety. The result has been significant reductions in construction materials and construction time. The work has generated direct savings of over GBP15M in three major infrastructure projects from 2011 to 2013 including Crossrail. It has had a wider influence across the whole industry by setting standards for geothermal piles in 2012, which were instrumental in the creation of this new industrial sector, and by changing attitudes in construction about the value of instrumentation and modelling.
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.
A long-term research programme into landslides and rockfalls by DU researchers, focused on the use of novel field and laboratory techniques, has had impact on UK and foreign government authorities, NGOs, and businesses. The work has provided frameworks for managing hazard associated with deep-seated landslides in New Zealand and a landslide-dammed lake in northern Pakistan. Research on coastal cliff erosion in North Yorkshire has provided critical support for high-value mining activities at the UK's largest non-hydrocarbon extractive mine, and has underpinned local government strategies for shoreline hazard assessment and management.
Cranfield's research on improved soil management planning through enhanced spatial information has influenced policy development, allowed the adoption of new approaches to soil mapping, and enhanced the management of strategically important land assets. The research has provided key input to policy development nationally, within the European Union and across the globe. It has developed new technologies which have been used to survey soils at the scale of complete countries, saving significant cost and survey time compared to conventional methods. Cranfield's modelling has also supported the management of strategic land assets such as military training areas, and soil-related geohazards related to road networks and other linear infrastructure at the regional and national levels.
The Imperial College Pile `ICP' effective-stress pile design approaches for offshore foundations offer much better design reliability than conventional methods. Their use delivers substantial economies in many hydrocarbon and renewable energy projects, better safety and confidence in developing adventurous structures in others. The ICP has enabled production in otherwise unviable marginal hydrocarbon fields, new options in high-value deep-water projects and helped eliminate installation failures that can cost hundreds of £million. We present evidence that the research delivered direct benefits exceeding £400m since 2008 in projects known to us, with larger worldwide benefits through project risk reduction and independent exploitation.
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.
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].
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.
Research at Swansea University in the area of computational electromagnetics has led to better design of aircraft with respect to radar detection and the screening of internal systems from the effect of unwanted electromagnetic field ingress. A key issue was the development of an ability to accommodate electromagnetically large complex bodies having spatially small, but electromagnetically important, features. In addition, procedures for modelling RF threats, including lightning strikes and electromagnetic hazards, were also developed. Such progress has enabled significant improvement in electromagnetic performance of technology produced by BAE Systems reaching across its Advanced Technology Centre and its business units (Military Aircraft and Information, and Naval Ships). This research enabled two-orders-of-magnitude improvement in efficiency of BAE software compared to previously used techniques, significantly reducing design time. These developments were used on major international programmes such as TYPHOON, the Taranis UCAV (unmanned Combat Air Vehicle).