Finite element analysis of head–neck kinematics during motor vehicle accidents: Analysis in multiple planes

2007 ◽  
Vol 29 (1) ◽  
pp. 54-60 ◽  
Author(s):  
Ee Chon Teo ◽  
Qing Hang Zhang ◽  
Russel C. Huang
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Motor Vehicle ◽  
Motor Vehicle Accidents ◽  
Element Analysis ◽  
Vehicle Accidents ◽  
Head Neck

Finite element analysis of the head–neck taper interface of modular hip prostheses

2015 ◽  
Vol 91 ◽  
pp. 206-213 ◽  
Author(s):  
R.M.R. Dyrkacz ◽  
J.M. Brandt ◽  
J.B. Morrison ◽  
S.T. O’ Brien ◽  
O.A. Ojo ◽  
...  
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Element Analysis ◽  
Hip Prostheses ◽  
Head Neck

Investigation of Performance of a Femoral Implant With a Plug Using Finite Element Analysis

1999 ◽  
Author(s):  
Taiming Chu ◽  
Deanna Y. Carstarphen
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Critical Section ◽  
Cobalt Chromium ◽  
Stress Concentrations ◽  
Element Analysis ◽  
Hip Function ◽  
Femoral Implants ◽  
Insight Into ◽  
Head Neck

Abstract A Finite Element Analysis was performed on the critical section of a titanium alloy femoral implant coupled with a cobalt-chromium Dall-Miles Cable Grip System (DMCGS). The critical section of the implant is defined at the hole where the wires of the DMCGS are threaded. Two models were generated for the analysis. The first model consisted of the critical section with a cobalt-chromium plug filled in at the hole. The second model consisted of the critical section without the plug in the hole. The models used in the study were based on a design developed by Howmedica Incorporated (called the “head-neck replacement”). One static simulation was performed on each model. This simulation represented the early stance phase of normal walking. The wires used in the simulations were pre-tensioned. The preliminary results of the analysis showed that the stresses in the model with the added plug were lower than those in the model without the plug. This indicated that a plug added to a femoral implant adjoined with the Dall-Miles Cable Grip System reduces the stress concentrations at the hole. Furthermore, the results of the study will provide insight into the modifications on design of femoral implants. This may well lead to an improvement in implant performance and better aid in the restoration of hip function for arthritic patients.

Flexural Performance of Hybrid-Rubberized Composite Slabs Using Finite Element Method

2014 ◽  
Vol 984-985 ◽  
pp. 167-171
Author(s):  
P. Subashree ◽  
R. Thenmozhi
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Concrete Slab ◽  
Three Dimensional ◽  
Crumb Rubber ◽  
Element Analysis ◽  
Vehicle Accidents ◽  
Bending Load ◽  
Composite Slabs ◽  
Bending Loads

Ab s t r act Hybrid Rubberized Composite Slabs (HRCS) is an innovative material which has been developed for highway barriers in bridge construction to avoid vehicle accidents and thereby reducing the risk to public. A three dimensional hybrid rubberized composite slab model (HRCS) was created using Finite element Analysis Software ANSYS and was validated by previous experimental research works on concrete with crumb rubber. Finite element simulations were performed to examine the effect of replacing 0-20% of fine aggregates with crumb rubber. The load-displacement behavior was analyzed for the plain and hybrid rubberized composite slabs under static bending loads. From the results, it was found that, the displacement decrease significantly with increase in the amount of fine crumb rubber replacement. The static bending load decreases as the percentage of replacement of fine crumb rubber increases. Aggregate replacement with crumb rubber in concrete decreases its strength under static bending load. As confirmed by experimental results, FEA can effectively simulate the behaviour of HRCS when the proper numerical model is adopted. Keywords: Hybrid Rubberized Concrete Slab, Crumb Rubber, Finite element analysis (FEA), Static Bending Load.

scholarly journals Crash Performance of Oil Palm Empty Fruit Bunch (OPEFB) Fibre Reinforced Epoxy Composite Bumper Beam using Finite Element Analysis

2018 ◽  
Vol 15 (4) ◽  
pp. 5826-5836
Author(s):  
C. S. Hassan ◽  
Q. Pei ◽  
S. M. Sapuan ◽  
N. Abdul Aziz ◽  
M. Z. Mohamed Yusoff
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Motor Vehicle ◽  
Epoxy Composite ◽  
Low Velocity Impact ◽  
Element Analysis ◽  
Bumper Beam ◽  
Damage Initiation ◽  
The Impact ◽  
Crash Performance

Malaysia is categorised as one of the countries with a high number of road crashes involving deaths. This indicated the necessity of improving the safety system of a vehicle including the passive system which comprises of the bumper as one of the systems. In the frontal impact, the bumper system is the first vehicle part that receives the impact. Therefore, a crashworthy bumper that can protect the occupant is essential.  In this research, the crash performance of OPEFB fibre/epoxy composite bumper beam has been investigated using finite element analysis. Low-velocity impact of 4 km/h between impact block and the bumper beam was simulated using LS-DYNA in accordance to Federal Motor Vehicle Safety Standards (FMVSS) 581 regulation. The composite was found exhibited comparable specific energy absorption with the aluminum bumper beam. Mass reduction of around 56% was observed. The peak force required for damage initiation for the composite bumper beam reduced by about 90% with impact time lengthen by around 89%. The velocity-history curves revealed a lower level of deceleration could be obtained through the utilisation of the composite bumper beam.

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