Assessing Motorcyclist Protection Systems Using Finite Element Simulations
نویسنده
چکیده
The impact of motorcyclists against the posts of the roadside barriers is one of the most frequently and harmful accidents. In order to avoid or minimize impact effects, different safety systems are being installed in many roads in the world. These safety systems should conform technical standards. European Technical Specification 1317-8 defines how it should be the testing procedure and placement of systems to prevent such accidents. The full-scale crash test with a dummy requires certain values not exceeded in neck forces, moments and Head Injury Criterion (HIC). This paper applies computer simulations (using Finite Element Method) in order to develop a virtual testing program to assess the safety system and evaluate the weaknesses of the mentioned standard. (Received in April 2014, accepted in July 2014. This paper was with the authors 1 month for 1 revision.)
منابع مشابه
Meso-scale Modeling of Tension Analysis of Pure and Intra-ply Hybrid Woven Composites Using Finite Element Method
One of the key issues associated with using of composites in various applications is their tensile behavior. The tensile behavior of a composite material is strongly influenced by the properties of its constituents and their distribution. This paper focuses on gaining some insights into the tensile process of pure and hybrid woven composite reinforced with brittle and ductile yarns. For this pu...
متن کاملThermal Fatigue Life Estimation and Fracture Mechanics Studies of Multilayered MEMS Structures Using a Sub-Domain Approach
This paper is concerned with the application of a Physics of Failure (PoF) methodology to assessing the reliability of Micro-Electro-Mechanical-System (MEMS) switches. Numerical simulations, based on the finite element method (FEM) using a sub-domain approach, were performed to examine the damage onset (e.g. yielding) due to temperature variations and to simulated the crack propagation differen...
متن کاملA numerical approach for variable-order fractional unified chaotic systems with time-delay
This paper proposes a new computational scheme for approximating variable-order fractional integral operators by means of finite element scheme. This strategy is extended to approximate the solution of a class of variable-order fractional nonlinear systems with time-delay. Numerical simulations are analyzed in the perspective of the mean absolute error and experimental convergence order. To ill...
متن کاملRoadside Barrier and Passive Safety of Motorcyclists along Exclusive Motorcycle Lanes
The tremendous increase in number of motorcycles and fatalities in some ASEAN countries is becoming a main concern for the safety of motorcyclists along exclusive motorcycle lanes. The existing w-beam guardrail system along exclusive motorcycle lanes was originally designed to reduce severity of a crash when cars and trucks involve in run-off road accident – but not specifically to protect moto...
متن کاملQuasi-static Axial Compression of thin-walled Circular Composite Tubes
Assessing the behavior of composite structures which are subjected to impact loads is one of the important subjects in the field of mechanical sciences. Using thin-walled tubes which collapsed and absorbed the impact energy is a well-known method to prevent damages to the other parts of the structures. In this paper, deformations, crushing length, peak load, mean force and energy absorption cap...
متن کامل