Study of automotive side sill/rocker by using carbon fibre reinforced polymer tubes
TL;DR: In this article, a vehicle side crash is a critical crash event where the vehicle is crashed by a movable car or vehicle may hit a tree or pole, and minimizing the intrusion into the occupant space is important to protec...
Abstract: Vehicle side crash is a critical crash event where the vehicle is crashed by a movable car or vehicle may hit a tree or pole. Minimising the intrusion into the occupant space is important to protec...
Citations
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TL;DR: In this article, the authors investigated the energy-absorbing behaviors of hybrid composite tubes under static load and their multi-objective optimization and found that it is possible to increase the absorbed energy values without sacrificing SEA values in double tubes.
9 citations
TL;DR: In this paper , the authors investigated the energy-absorbing behaviors of hybrid composite tubes under static load and their multi-objective optimization and found that it is possible to increase the absorbed energy values without sacrificing SEA values in double tubes.
9 citations
TL;DR: In this article, the authors investigated the improvement in energy absorption of a top-hat profile hollow-section beam by attaching different shapes of internal reinforcements, and showed that the base structure of the beam can be improved by adding additional reinforcement.
Abstract: The aim of this study is to investigate the improvement in energy absorption of a top-hat profile hollow-section beam by attaching different shapes of internal reinforcements. The base structure of...
3 citations
Cites background from "Study of automotive side sill/rocke..."
...ments for improving safety in side impact crash events [2]....
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TL;DR: In this paper, a few studies/bodies of data are available in the open literature on the topic of mechanical material characterisation and structural performance for direct/inline compounded long-fiber thermometers.
Abstract: Few studies/bodies of data are available in the open literature on the topic of mechanical material characterisation and structural performance for direct/inline compounded long fibre therm...
2 citations
Cites background from "Study of automotive side sill/rocke..."
...investigated the use of square carbon fibre reinforced polymer tubes for vehicle rockers (sills) with the objective of minimising mass while maintaining the crash performance possible with traditional materials/structures [15]....
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TL;DR: A structured definition of defects is followed by Finite Elements modeling that is used to study the impact on the part and a tailored Performance Indicator is supported that is attempting to capture the defect behaviour / performance through vibrational data.
2 citations
References
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01 Jan 2010
TL;DR: In this paper, materials for lightweight automotive structures: Advanced steels and thermoplastic-matrix composites are used for automotive structures, and aluminum alloys and magnesium alloys for lightweight powertrain and automotive structures.
Abstract: Introduction. Part 1 Materials for lightweight automotive structures: Advanced steels for lightweight automotive structures Aluminium alloys for lightweight automotive structures Magnesium alloys for lightweight powertrains and automotive structures Thermoplastics and thermoplastic-matrix composites for lightweight automotive structures Thermoset-matrix composites for lightweight automotive structures. Part 2 Manufacturing and design of lightweight automotive structures: Manufacturing processes for light alloys Joining for lightweight vehicles Recycling and lifecycle issues for lightweight vehicles Crashworthiness design issues for lightweight vehicles.
235 citations
"Study of automotive side sill/rocke..." refers methods in this paper
...The Chang–Chang failure criteria are a set of discrete failure conditions, such as matrix failure in shear and compression and have been applied to the design of CFRP-based structures [14]....
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Dissertation•
01 Jan 2010
TL;DR: In this article, the authors present an approach to improve the performance of a single-input-single-output (SISO) system using a set of tools from the Massachusetts Institute of Technology, Engineering Systems Division.
Abstract: Thesis (Ph. D.)--Massachusetts Institute of Technology, Engineering Systems Division, 2010.
150 citations
"Study of automotive side sill/rocke..." refers background in this paper
...combination of vehicle downsizing, vehicle redesign/ contents reduction and material substitution [4]....
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TL;DR: In this article, the side-door impact beam for passenger cars was developed using glass-fibre-reinforced composite materials as metals usually have a lower capacity of impact absorption energy at low temperature compared with that of glass-based composite materials.
83 citations
TL;DR: In this paper, a finite element modeling methodology was developed to study the crushing behavior and energy absorption characteristics of graphite/epoxy laminated circular tubes with multiple layers of shell elements with layers being tied together using tiebreak contact.
Abstract: A finite element modeling methodology was developed to study the crushing behavior and energy absorption characteristics of graphite/epoxy laminated circular tubes Laminated tubes were modeled using multiple layers of shell elements with layers being tied together using tiebreak contact A progressive damage model was used to simulate the failure within each layer while a mesh-independent energy-based failure criterion for the tiebreaks was implemented in the model to effectively simulate the delamination between layers during the crushing process Simulation results compared very well with the experiments in terms of the load–displacement behavior, specific energy absorption, and surface strain distribution, and provided a good depiction of the failure process
78 citations
TL;DR: In this paper, the authors presented an approach of strengthening vehicle roof structure components by bonding carbon fibres to the steel surface, which has been shown to provide substantial increases in force and energy resistance for steel tubes under both axial crushing and pure bending.
Abstract: There is an increasing pressure on vehicle manufacturers internationally to increase the strength of vehicle roofs, in response to the ongoing morbidity and mortality related to vehicle rollover crashes. Several countries are mandating increased roof strengths for future vehicle fleets, and this is occurring at the same time as increased regulations to reduce vehicle emissions. Thus light weight strengthening solutions are required to increase roof strengths while minimising structural mass. This paper presents the novel approach of strengthening vehicle roof structure components by bonding carbon fibres to the steel surface. Such fibre strengthening systems have been shown to provide substantial increases in force and energy resistance for steel tubes under both axial crushing and pure bending. The strengthening potential is assessed with a numerical study of two different passenger vehicles subjected to various roof crush test protocols. Numerical models of fibre composite strengthening systems are validated against experiments, then applied to numerical models of the vehicles. Substantial improvements in the roof strength, and correspondingly the vehicles' roof strength to weight ratio, are demonstrated with the fibre strengthening technique. Comparisons are made with models of strengthening the roof structure components by adding steel rather than fibre composite, and the implications with regards to vehicle light-weighting are discussed. It is shown that fibre composite strengthening of vehicle roof structures has the potential to contribute to higher roof strengths and/or light-weighting in future vehicle fleets.
35 citations
"Study of automotive side sill/rocke..." refers background in this paper
...Study on fibre-epoxy strengthening systems for vehicle light-weighting showed 37%–68% mass saving in the roof area compared with that of steel [1]....
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