4.4 Structures and MaterialsScopeThe structures and materials (FASMAT) technology theme includes the following vehicle systems andfunctions: Supporting structure (body), which is an integral part of many other systems and features of thevehicle, such as style, glazing, heating and airflow systems. Structural components, including suspension, hard and soft trim.Market and industry trends and drivers that are particularly relevant to this technology theme include:SocialEconomicEnvironmentalTechnologicalPoliticalInfrastructuralDemands <strong>for</strong> improved safety, greater vehicle configurability and reduced fuelconsumption.Competitive pressure to reduce development and manufacturing cycle times and costs, andto improve responsiveness, agility, flexibility, durability, efficiency and quality, in order toachieve greater profitability and return on capital.Requirement to reduce material waste, energy consumption and emissions of CO 2 andother harmful substances, during manufacture and use of vehicles.Developments in new materials, such as composites, polymers, lightweight alloys, smartmaterials, and associated design and processing methods, together with competition todevelop innovative structures and materials to improve vehicle per<strong>for</strong>mance in terms ofweight, stiffness, safety, responsiveness, fuel efficiency, configurability and environmentalimpact.UK Government, European and international policy, regulation and legislation concerningtransport, energy, CO 2 , safety and waste management.Developments in infrastructure that affect safety (telematics and physical infrastructure).Development of structures and materials technologies, together with associated research challenges,have been explored in an expert workshop that identified and considered the following themes,summarised below and detailed in Appendix C:SafetyProduct configurability / flexibilityEconomicsEnvironment<strong>Technology</strong> directionsSafetyThe UK government is committed to reducing deaths and serious injuries from road traffic accidents bybetween 40 and 50% over the next ten years. Increasing safety needs to be achieved in parallel to theintroduction of new materials and structural solutions to reduce vehicle weight, together with new engineconfigurations and fuel types (such as hydrogen and liquefied or compressed gas). Developments in materialsand structures intended to improve safety under collision and accident conditions need to be considered inconjunction with measures that can be taken to reduce the likelihood and severity of accidents, such asadvanced software, sensors, electronics and telematics (see ASSET technology theme) and improvements toinfrastructure, such as traffic calming and segregation of traffic types (by weight and speed). A combinationof passive and active safety systems are required, taking into account <strong>for</strong>ecasts of future mobility requirementsand vehicles types.31
10 years 10 – 20 years > 20 years Incremental change to current systems Legacy vehicles More realistic crash & accident tests Improved modelling and simulation Paving materials (lane highlighting) Materials and structures <strong>for</strong> small lightweight vehicles(motorcycles, urban vehicles) Reflective materials Ultra stiff occupant cells Materials and structures <strong>for</strong> improved pedestrian safety New mobility solutions and technologies Side impact protection Improved safety <strong>for</strong> buses and other largevehicles (passengers, pedestrians, cars) Electro rheological materials Smart crash materials (high energyabsorption, responsive) Crash barriers to meet all road user needs Smart crash per<strong>for</strong>mance (high and lowspeed per<strong>for</strong>mance tailored to suit crashtype)Product configurability / flexibilityA growing demand <strong>for</strong> greater product variety is anticipated, to meet future consumer requirements in termsof lifestyles and demographics. The trend towards greater configurability and flexibility will be reflected inthe use of vehicles, to meet a greater variety of different needs in service, and in the design and manufactureof vehicles. Industry will need to continually reduce development times and costs, while at the same timeincreasing agility and responsiveness to consumer needs. Increasingly modular architectures will enablevehicles to be reconfigured more easily, throughout the life cycle, including design, production, service andend of life.< 10 years 10 – 20 years > 20 years Increasing plat<strong>for</strong>m, product and material mix New joining technologies Just-in-time processes Modular assembly ‘Pick & mix’ equipment interiors Space frames to enable low weight and / or low investmentproducts Design, validation and simulation / prediction techniques Coating technologies Recycling systems (material identification and separation) Improved material durability (corrosion and fatigueresistance) Lightweight hang-on parts Easy and low cost repairs Main chassis / structure common withvaried body High strength <strong>for</strong>mable lightweightmaterials One chassis with ‘snap on’ body module ‘Pick & mix’ modules Low cost flexible tooling and processes Low cost dimension / profile changes Increasing configuration at dealer <strong>Vehicle</strong> structural concepts and materials tosuit new power / engine options ‘Turn on / off’ joining techniques External design by customerEconomicsStructural systems and materials <strong>for</strong>m a significant proportion of vehicle weight and cost, in terms of rawmaterials, production, use and disposal / recycling. Advances in materials technology, and the associateddesign and manufacturing processes, also provide significant potential <strong>for</strong> enhancing vehicle per<strong>for</strong>mance andadding value. The economics associated with structures and materials need to be considered in terms of thefull vehicle lifecycle: design, manufacture (including the tradeoffs between volume and cost of production),use and recycling.< 10 years 10 – 20 years > 20 years Properties and processing of advanced materials andcomposites, including design constraints of these newmaterials Plastic structural parts Reconfigurable tooling Durability of materials Processes <strong>for</strong> usinglighter materials(e.g. titanium), Improved road surface materials (in terms of interaction with Self-coloured panelscompatible withtyres and vehicle: friction, rolling resistance, grip, noise) Fast curing compositesconventional Identification and separation of materials <strong>for</strong> recycling Moulded body, reducing assemblyproduction Energy used in recovering materials <strong>for</strong> recycling <strong>Technology</strong> transfer from motorsports (butmethods Flexible manufacturingat reduced cost) Standardisation of Af<strong>for</strong>dable low volume manufacture Low cost carbon fibre compositessafety regulations Alternatives to glass <strong>for</strong> security, safety and vision(particularly <strong>for</strong> Nano-composites Pre-coated & lightweight materialscrash) Recyclable composites Energy absorption <strong>for</strong> lightweight materials and structures Smart materials Partial standardisation of safety regulations(e.g. polytronics) Low cost tooling <strong>for</strong> low volumes(e.g. side impact) Easy to repair / replace Reduction in cost of bodywork repairs ‘No tooling’ manufacture processes ‘Mutual recognition’ of European / North American safetyregulations / specifications32