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Viewing 1 to 30 of 3393
2016-04-14
Event
The pedestrian and cyclist safety session focuses on research and development efforts aimed at protecting pedestrians and cyclists in the event of vehicle impact. Papers on injury biomechanics, vehicle design, dummy and impactor development, computational modeling, regulations and consumer assessment testing, active safety and collision avoidance are accepted for this session.
2016-04-14
Event
This session includes the latest research on Event Data Recorders (EDRs) equipped in passenger cars, light trucks, and commercial vehicles (heavy trucks and motorcoaches). Emphasis is placed on the application, interpretation and use of EDRs in the investigation of motor vehicle crashes.
2016-04-14
Event
This session focuses on the latest research related to methods and techniques for reconstructing vehicular crashes involving wheeled and tracked vehicles, pedestrians, and roadside features. Emphasis is placed on experimental data and theoretical methods that will enable reconstructionists to identify, interpret and analyze physical evidence from vehicular crashes.
2016-04-14
Event
The 2016 session offers technical papers covering integrated active and passive safety system topics, including drowsy driving prevention, driver state technology, breath-alcohol-detection system, and strategy and enhancement of integrated safety systems.
2016-04-14
Event
Papers are invited on all aspects of automotive crashworthiness and occupant protection in side impacts, including topics such as discussions of test data, CAE methods, statistical analyses, automobile designs, restraint systems and airbags, crash test methodology and development of surrogates (test dummies). Additional topics may include side impact safety considerations for hybrid and electric propulsion vehicles.
2016-04-14
Event
Papers and presentations in this session are related to vehicular rollover. They cover various aspects of occupant’ safety, including vehicle design, restraint systems design, crash test analysis, CAE simulations and statistical trends analysis.
2016-04-14
Event
Paper offers related to advancing the science of occupant safety in vehicle rear impact collisions are welcome.
2016-04-13
Event
This session focuses on the latest research related to methods and techniques for reconstructing vehicular crashes involving wheeled and tracked vehicles, pedestrians, and roadside features. Emphasis is placed on experimental data and theoretical methods that will enable reconstructionists to identify, interpret and analyze physical evidence from vehicular crashes.
2016-04-13
Event
This session focuses on the latest research related to methods and techniques for reconstructing vehicular crashes involving wheeled and tracked vehicles, pedestrians, and roadside features. Emphasis is placed on experimental data and theoretical methods that will enable reconstructionists to identify, interpret and analyze physical evidence from vehicular crashes.
2016-04-13
Event
Paper offers advancing the science of occupant safety in vehicle collisions are welcome.
2016-04-12
Event
The Occupant Restraints Session invites papers that document new research on the restraint topics of airbags, seat belts, inflatable bolsters/seat belts, knee bolsters, Child Restraint Systems (CRS) and other related areas. These papers could include several of the following: technology description, occupant performance considerations, field data studies, development/validation methodology / results, CAE/Finite Element methods/results, packaging, and implementation / performance challenges.
2016-04-12
Event
This session presents papers in testing and modeling of safety-related technologies, covering (1) improved, new and innovative full/sub-system/component physical and CAE-based test methodologies pertaining to frontal, side, and pedestrian impacts; and dummy evaluations; (2) Calculation algorithm for 3D_IRTRACC for safety research, and (3) special topics including data mining, the wagging root uncertainty, boot effect under blast loading, and a methodology for predicting periprosthetic injuries.
2016-04-12
Event
Papers with an emphasis on, but not limited to, innovative ideas to enhance automotive safety with improved material constitutive modeling, analysis method developments, simulation and pre/post processing tools, optimization techniques, crash code developments, finite element model updating, model validation and verification techniques, dummies and occupants, restraint systems, passive safety as well as lightweight material applications and designs are highly encouraged.
2016-04-12
Event
Papers with an emphasis on, but not limited to, innovative ideas to enhance automotive safety with improved material constitutive modeling, analysis method developments, simulation and pre/post processing tools, optimization techniques, crash code developments, finite element model updating, model validation and verification techniques, dummies and occupants, restraint systems, passive safety as well as lightweight material applications and designs are highly encouraged.
2016-04-12
Event
This session presents papers in testing and modeling of safety-related technologies, covering (1) improved, new and innovative full/sub-system/component physical and CAE-based test methodologies pertaining to frontal, side, and pedestrian impacts; and dummy evaluations; (2) Calculation algorithm for 3D_IRTRACC for safety research, and (3) special topics including data mining, the wagging root uncertainty, boot effect under blast loading, and a methodology for predicting periprosthetic injuries.
2016-04-12
Event
The Biomechanics session presents new research on automotive occupant kinematics, human injury biomechanics, and human tolerance in an automotive environment. This includes new methodologies in the study of human injury, studies of human interaction with occupant protection systems, technological advances in physical and virtual anthropomorphic test devices, and other experimental, analytical and modeling studies on the biomechanics of human injury.
2016-04-05
Technical Paper
2016-01-0397
Wenxin Qin, Sandip Datta, Weidong Zhang
In automotive chassis, body and powertrain finite element numerical analysis, more and more analysts and engineers like to adopt 3D complex FEA models along with improved computer hardware and software. The advantages of 3D FEA model are (1) looked like real model in vision; (2) simulation response is more vivid; (3) easily to discover the mistakes by watching simulation response. The drawbacks of 3D FEA model are (1) more pre/post process works and computation time; (2) numerical divergence is a challenging issue in nonlinear and contact situations and debug becomes difficulty; (3) sometimes accumulated numerical errors will cover the actual response. Therefore, it is necessary to explore what kinds of 3D FEA situations can be successfully converted by the simple 2D plan FEA models.
2016-04-05
Technical Paper
2016-01-0395
Anindya Deb, Clifford C. Chou, Gunti R. Srinivas, Sanketh Gowda, Goutham kurnool
An attractive strategy for joining non-ferrous or non-metallic substrates is through adhesive bonding. This technique of joining also offers the functionality for joining dissimilar materials. However, doubts are often expressed on the ability of such joints to perform on par with other mechanical fastening methodologies such as welding, riveting, etc. In the current study, adhesively-bonded single lap shear (SLS) and double lap shear (DLS) joints are studied initially under quasi-static (at a cross-head speed of 1 mm/min) tensile and flexural loading using steel and aluminum substrates, and an epoxy-based adhesive of a renowned make. The study includes usage of similar substrates made of only steel or aluminum, or a combination of steel and aluminum substrates. Load-displacements curves for bonded joints are presented for varying overlap lengths.
2016-04-05
Technical Paper
2016-01-1499
Willy Klier, Thomas Lich, Gian Antonio D’Addetta, Heiko Freienstein, Armin Koehler, Bastian Reckziegel, Zerong Yu
On the way to automated driving, the market penetration of surround sensing systems will rapidly increase in the upcoming years. The respective technical progress in the areas of driver assistance and active safety leads to a numerous and valuable information and signals to be used prior, during and even after an accident. Car makers and suppliers can make use of this new situation and develop new integrated safety functions to further reduce the number of injured and even deaths in car accidents. Nevertheless, the base occupant safety remains the core of this integrated safety system in order to ensure at least a state-of-the-art protection even in vehicles including partial, high or full automation. Current networked safety systems comprehend a point-to-point connection between single components of active and safety systems. The optimal integration requires a much deeper and holistic approach.
2016-04-05
Technical Paper
2016-01-1531
Dale E. Halloway
Occupant Kinematics in Distinct Types of Far-side Impacts Objective: Occupant contacts not on a trajectory not in line with a response to the resultant impact vector are seen as the consequence of post-impact vehicle rotation. This analysis evaluates field data for indications the trajectory occupant contacts indicate in far-side impacts is affected by the acceleration of the vehicle. Methods: Using the WinSMASH calculated moment arm a classification scheme was devised. WinSMASH calculates and reports moment arm length and sign. Moment arm length was used to classify impacts as ‘centric’ or ‘eccentric’ relative to the vehicle center of gravity. A query was made for far-side impacts in CIREN. 111 cases were reviewed and WinSMASH re-run. The results were used to classify impacts by the crush profile center-of-damage and principal direction of force. All AIS 2+ injuries were located on whole body and specific anatomic region mannequins.
2016-04-05
Technical Paper
2016-01-1505
William W. Van Arsdell, Paul Weber, Charles Stankewich, Brian Larson, Ryan Hoover, Richard Watson
This paper investigates the role that load limiters play with respect to the performance of occupant protection systems. Modern occupant protection systems consist of not just the seat belt, but also airbags, interior vehicle surfaces and vehicle structure. Modern seat belts very often incorporate load limiters as well as pretensioners. Published research has established that load limiters and pretensioners increase the effectiveness of occupant protection systems. Some individuals have argued that load limiters with higher deployment thresholds are always better than load limiters with lower deployment thresholds. Similarly, they have argued that load limiters should always include stops that limit the amount of webbing deployed due to load limiter actuation. Through testing and analysis, we have investigated this hypothesis and in this paper we present test data as well as a discussion to this data and engineering mechanics to explain why this hypothesis is incorrect.
2016-04-05
Technical Paper
2016-01-1470
Nathan A. Rose, Neal Carter, Gray Beauchamp
Calculating the speed of a yawing and braked vehicle often requires an estimate of the rate at which the vehicle decelerated over the course of its trajectory. During a steering induced yaw, the rotational velocity of the vehicle will typically be small enough that it will not make up a significant portion of the vehicle energy. However, when a yaw is impact induced and the resulting yaw velocity is high, the rotational component of the vehicle’s kinetic energy can be significant relative to the translational component. In such cases, the rotational velocity can have a meaningful effect on the rate at which the vehicle decelerates. In addition to the effects of rotational energy on the deceleration rate, high yaw velocities can also cause steering angles to develop at the front tires because the frictional forces between the tires and ground cause the yaw rotation of the tires to lag behind the yaw rotation of the vehicle.
2016-04-05
Technical Paper
2016-01-1462
Louis R. Peck, Mu-Hua Cheng
Three targeted vehicles of varying size were measured using an optimized, practical photogrammetry technique and the results were compared to measurements acquired via total station. The photogrammetry method included the use of a field-calibrated DSLR camera equipped with a fixed 20mm lens, retro-reflective targets sized for vehicular modeling, and a CNC-machined scale bar. Eight photographs were taken from proper angles and processed using a commercially available photogrammetry package, and that data was merged with the total station data using a cloud-to-cloud registration process for point-to-point comparison of positional data. The average residual between corresponding photogrammetry and total station points was 1.7 mm (N 258, SD = 0.8 mm) with a 95% confidence level of 3.3 mm. Considering this low residual, one of the sample vehicles was re-measured using a high accuracy FARO Arm for comparison to the photogrammetry technique.
2016-04-05
Technical Paper
2016-01-0403
Devendra M. Oza, Abhijit Londhe
Stiffness evaluation for the components made from natural rubber have been attempted here using Finite Element simulation technique. Conventional method for extraction of the stiffness with metallic parts like steel using linear approach is no more valid in rubber (elastomers). Unique properties of elastomers like sustaining strains up to 500% due to large deformation under loading (displacement unveils non-linear behavior with applied load), exhibiting significant damping property because of viscoelasticity and nearly incompressible in nature (no change in volume appreciably with stress) creates a need to seek for special material model and capture non-linear behavior. Stress vs strain behavior of elastomers under all possible loading conditions calls for physical sample test in uni-axial tension, uni-axial compression, bi-axial tension, planar shear and volumetric test. Two suspension rubber mounts and one engine mount have been analyzed with the current simulation technique.
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