You searched for +publisher:"University of Windsor" +contributor:("William Altenhof").
Showing records 1 – 5 of
5 total matches.
No search limiters apply to these results.
University of Windsor
1.
Gao, Pingping.
Vehicle Safety Design Methods to Comply with Emerging International Standards.
Degree: MA, Mechanical, Automotive, and Materials Engineering, 2012, University of Windsor
URL: https://scholar.uwindsor.ca/etd/4806 
► This research focuses on the development of a design methodology for vehicle safety design to comply with the different side impact crash regulations that are…
(more)
▼ This research focuses on the development of a design methodology for vehicle safety design to comply with the different side impact crash regulations that are used around the world. The main differences of each side impact tests and potential influences on vehicle design were identified. Door intrusion velocity, door trim component stiffness and seat airbag were selected as three design variables. Sled test finite element models based on the Heidelberg buck sled test set-up were developed to investigate the sensitivity of three design factors to the occupant injury in both moving deformable barrier test and oblique pole test load conditions. Occupant injury response variations were assessed at different levels of the design factors. From the simulation results, for moving deformable barrier test, there is a balance between limiting the thorax injury and abdominal injury. For the Oblique pole test, the simulation results show that the padding system development may be more effective than the vehicle structure enhancement. Design guidelines that would enable vehicles to comply with different side impact tests were extracted based on the simulation results.
Advisors/Committee Members: William Altenhof, Peter Frise.
Subjects/Keywords: Applied sciences; Crash test simulation; Finite element analysis; Safety design methodology; Safety regulations and NCAPs; Side impact sled model
Record Details
Similar Records
Cite
Share »
Record Details
Similar Records
Cite
« Share
❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Gao, P. (2012). Vehicle Safety Design Methods to Comply with Emerging International Standards. (Masters Thesis). University of Windsor. Retrieved from https://scholar.uwindsor.ca/etd/4806
Chicago Manual of Style (16th Edition):
Gao, Pingping. “Vehicle Safety Design Methods to Comply with Emerging International Standards.” 2012. Masters Thesis, University of Windsor. Accessed April 11, 2021.
https://scholar.uwindsor.ca/etd/4806.
MLA Handbook (7th Edition):
Gao, Pingping. “Vehicle Safety Design Methods to Comply with Emerging International Standards.” 2012. Web. 11 Apr 2021.
Vancouver:
Gao P. Vehicle Safety Design Methods to Comply with Emerging International Standards. [Internet] [Masters thesis]. University of Windsor; 2012. [cited 2021 Apr 11].
Available from: https://scholar.uwindsor.ca/etd/4806.
Council of Science Editors:
Gao P. Vehicle Safety Design Methods to Comply with Emerging International Standards. [Masters Thesis]. University of Windsor; 2012. Available from: https://scholar.uwindsor.ca/etd/4806
University of Windsor
2.
Amini, Keivan.
Numerical Investigation into Axial Cutting of AA6061-T6 Circular Extrusions Under Blast Loading.
Degree: MA, Mechanical, Automotive, and Materials Engineering, 2012, University of Windsor
URL: https://scholar.uwindsor.ca/etd/5370
► The study detailed in this thesis focuses on the force/time and energy absorption performances of circular AA6061-T6 aluminum alloy extrusions with the wall thickness…
(more)
▼ The study detailed in this thesis focuses on the force/time and energy absorption performances of circular AA6061-T6 aluminum alloy extrusions with the wall thickness of 3.175 mm and 1.587 mm subjected to cutting deformation modes under blast loading conditions. Numerical simulations of the detonation as well as the axial cutting deformation process employing an Eulerian finite element formulation and Smooth Particle Hydrodynamic (SPH) were performed. Numerical detonation models were in good agreement with experimental results having an average standard error less than 3% for impulse predictions. Good predictive capabilities of the numerical model employing the Eulerian element formulation for the axial cutting behaviours were observed, while the SPH formulation failed to predict experimentally observed deformation modes. The average mean cutting force, measured at the load cell for both experimental and numerical testing methods as a result of cutting deformation was observed to be 18.8 kN and 33.5 kN for the thin- and thick-walled extrusions, respectively. Force and energy analyses were conducted using theoretical and numerical models to study the steady-state cutting condition. Theoretically, it was observed that the friction force contributed 48% of total axial cutting resistant force, independent of extrusion wall thickness.
Advisors/Committee Members: William Altenhof.
Subjects/Keywords: AA6061-T6; Aluminum alloy; Blast loading; Crashworthiness; Energy absorption; Eulerian formulation
Record Details
Similar Records
Cite
Share »
Record Details
Similar Records
Cite
« Share
❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Amini, K. (2012). Numerical Investigation into Axial Cutting of AA6061-T6 Circular Extrusions Under Blast Loading. (Masters Thesis). University of Windsor. Retrieved from https://scholar.uwindsor.ca/etd/5370
Chicago Manual of Style (16th Edition):
Amini, Keivan. “Numerical Investigation into Axial Cutting of AA6061-T6 Circular Extrusions Under Blast Loading.” 2012. Masters Thesis, University of Windsor. Accessed April 11, 2021.
https://scholar.uwindsor.ca/etd/5370.
MLA Handbook (7th Edition):
Amini, Keivan. “Numerical Investigation into Axial Cutting of AA6061-T6 Circular Extrusions Under Blast Loading.” 2012. Web. 11 Apr 2021.
Vancouver:
Amini K. Numerical Investigation into Axial Cutting of AA6061-T6 Circular Extrusions Under Blast Loading. [Internet] [Masters thesis]. University of Windsor; 2012. [cited 2021 Apr 11].
Available from: https://scholar.uwindsor.ca/etd/5370.
Council of Science Editors:
Amini K. Numerical Investigation into Axial Cutting of AA6061-T6 Circular Extrusions Under Blast Loading. [Masters Thesis]. University of Windsor; 2012. Available from: https://scholar.uwindsor.ca/etd/5370
University of Windsor
3.
Zhang, Wencheng.
Incorporation of biomechanical child cadaver neck behaviour in a child model and injury prediction in vehicle frontal crash.
Degree: MA, Mechanical, Automotive, and Materials Engineering, 2008, University of Windsor
URL: https://scholar.uwindsor.ca/etd/7890
► This research was completed in an effort to improve the biofidelity of a finite element child model and the accuracy of injury predictions in…
(more)
▼ This research was completed in an effort to improve the biofidelity of a finite element child model and the accuracy of injury predictions in forward facing child restraint seats during numerical simulations of frontal crashes.
After material alterations to the child model, neck tensile force was found to be within the range of cadaver tests and the rotation-moment curves were in good agreement with the corridor of the pediatric cadaver head/neck complex tests.
The altered child model has illustrated more accurate biomechanical responses and kinematics; its biofidelity has been improved. The upper and lower neck tensile forces of the child model were reduced by approximately 35% and 41%, respectively. Tensile deformation of the child neck was increased by 2.75 times while rotational deformation increased by 37%. The percentage error of the maximum displacements of the child head was reduced from approximately 16% to 13.5%.
Advisors/Committee Members: William Altenhof.
Subjects/Keywords: Applied sciences
Record Details
Similar Records
Cite
Share »
Record Details
Similar Records
Cite
« Share
❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Zhang, W. (2008). Incorporation of biomechanical child cadaver neck behaviour in a child model and injury prediction in vehicle frontal crash. (Masters Thesis). University of Windsor. Retrieved from https://scholar.uwindsor.ca/etd/7890
Chicago Manual of Style (16th Edition):
Zhang, Wencheng. “Incorporation of biomechanical child cadaver neck behaviour in a child model and injury prediction in vehicle frontal crash.” 2008. Masters Thesis, University of Windsor. Accessed April 11, 2021.
https://scholar.uwindsor.ca/etd/7890.
MLA Handbook (7th Edition):
Zhang, Wencheng. “Incorporation of biomechanical child cadaver neck behaviour in a child model and injury prediction in vehicle frontal crash.” 2008. Web. 11 Apr 2021.
Vancouver:
Zhang W. Incorporation of biomechanical child cadaver neck behaviour in a child model and injury prediction in vehicle frontal crash. [Internet] [Masters thesis]. University of Windsor; 2008. [cited 2021 Apr 11].
Available from: https://scholar.uwindsor.ca/etd/7890.
Council of Science Editors:
Zhang W. Incorporation of biomechanical child cadaver neck behaviour in a child model and injury prediction in vehicle frontal crash. [Masters Thesis]. University of Windsor; 2008. Available from: https://scholar.uwindsor.ca/etd/7890
University of Windsor
4.
Kapoor, Tanya.
Methods to mitigate injuries to toddlers in a vehicle crash.
Degree: PhD, Mechanical, Automotive, and Materials Engineering, 2008, University of Windsor
URL: https://scholar.uwindsor.ca/etd/7871
► This research focuses on methods to reduce injuries, specifically in the head and neck region, sustained by children seated in forward facing child restraint…
(more)
▼ This research focuses on methods to reduce injuries, specifically in the head and neck region, sustained by children seated in forward facing child restraint system during a vehicle crash. Three standardized experimental tests were considered in this research for the purpose of model validation and to quantify the injury potential sustained by children in a crash: (i) frontal dynamic sled tests were completed in accordance with FMVSS 213 using a Hybrid III 3-year-old dummy in a five point restraint system, (ii) full frontal vehicle crash test was completed in accordance with the CMVSS 208 with a Hybrid III 3-year-old child dummy, seated behind the passenger seat, restrained in five-point restraint system, and (iii) side impact dynamic sled tests in the presence of a rigid wall and absence of a vehicle body (near side configuration) were conducted by NHTSA using a Hybrid III 3-year-old child dummy seated in a convertible forward/rearward child safety seat. A finite element model of the child restraint seat was developed utilizing CAD data provided by Century/Graco Corporation. Material tests were conducted to obtain the nonlinear material properties of the CRS polypropylene, child seatbelt webbing, and polymeric foams. Numerical simulations were conducted using LS-DYNA, and the simulation results of the frontal and side impact tests were observed to be in a good agreement to the experimental findings. An average percentage error of approximately 20 percent was observed between the numerical and experimental data.
Different countermeasures were investigated to mitigate the head and neck injury potential in frontal and side impact crashes. These methods involved numerical studies utilizing a Hybrid III 3-year-old dummy, Q3/Q3s dummies and a child FE model. Load limiting behaviour into the upper tether and lower LATCH anchors of the CRS in order to reduce the neck injury criteria by increasing forward head excursion in a frontal crash was first examined. It was observed that the implementation of load limiting behaviour in the CRS tethers was effective in reducing the head and neck injury criteria by approximately 60 percent and 35 percent respectively. Secondly, a head and neck restraining device was developed to limit the amount of neck rotation in the dummy's head. A reduction of approximately 50 to 60 percent was observed in the head and neck injury potential in the presence of the head and neck restraining device. Finally, numerical simulations were completed with rectangular and cross-shaped sections of rigid ISOFIX systems for better side impact protection. In addition, studies were conducted to confine lateral movement of the dummy's head by incorporating energy absorbing foam on the side wings in the vicinity of the contact region of the CRS. It was observed that the use of the rigid ISOFIX system reduced the lateral displacement of the CRS and different injury parameters. Addition of energy absorbing foam blocks was effective in further reducing the lateral displacement of the dummy's head by…
Advisors/Committee Members: William Altenhof.
Subjects/Keywords: Applied sciences; Crash injuries; Head and neck injuries; Side impact crashes; Toddlers; Vehicle crashes
Record Details
Similar Records
Cite
Share »
Record Details
Similar Records
Cite
« Share
❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Kapoor, T. (2008). Methods to mitigate injuries to toddlers in a vehicle crash. (Doctoral Dissertation). University of Windsor. Retrieved from https://scholar.uwindsor.ca/etd/7871
Chicago Manual of Style (16th Edition):
Kapoor, Tanya. “Methods to mitigate injuries to toddlers in a vehicle crash.” 2008. Doctoral Dissertation, University of Windsor. Accessed April 11, 2021.
https://scholar.uwindsor.ca/etd/7871.
MLA Handbook (7th Edition):
Kapoor, Tanya. “Methods to mitigate injuries to toddlers in a vehicle crash.” 2008. Web. 11 Apr 2021.
Vancouver:
Kapoor T. Methods to mitigate injuries to toddlers in a vehicle crash. [Internet] [Doctoral dissertation]. University of Windsor; 2008. [cited 2021 Apr 11].
Available from: https://scholar.uwindsor.ca/etd/7871.
Council of Science Editors:
Kapoor T. Methods to mitigate injuries to toddlers in a vehicle crash. [Doctoral Dissertation]. University of Windsor; 2008. Available from: https://scholar.uwindsor.ca/etd/7871
University of Windsor
5.
Vijayan, Vivek.
Numerical model development of a heavy mining vehicle multi-piece wheel assembly for structural analysis.
Degree: MA, Mechanical, Automotive, and Materials Engineering, 2008, University of Windsor
URL: https://scholar.uwindsor.ca/etd/8053
► Over the past few decades, a significant number of incidents and fatalities have been associated with mining vehicle wheels. Correspondingly, a literature review was…
(more)
▼ Over the past few decades, a significant number of incidents and fatalities have been associated with mining vehicle wheels. Correspondingly, a literature review was completed dealing with various topics associated with the mining wheels with specific attention to the incidents arising as a result of servicing multi-piece wheels. A detailed analysis of the obtained data indicated that three piece mining vehicle wheels were found to be most commonly involved in such incidents.
To assess the mechanical performance of three piece mining wheels, experimental testing was completed on such a wheel. Additionally, a numerical model of the wheel assembly used in the experimental testing was developed and simulated under similar loading conditions as in the experimental work. Predictions of the finite element model were in good agreement to the experimental findings with percentage errors typically in the range of 10% to 20%.
Numerical simulation of the SAE J1992 wheel cornering fatigue testing condition was completed on the numerical model of the wheel. The predictions from simulation were used to assess fatigue factors of safety utilizing the modified Goodman theory (von Mises and Sines approaches), simplified damage mechanics and critical plane approaches considering multi-axial loading. This predicts an infinite life for the wheel, whereas in practical applications, it is observed that the wheels do not usually have an infinite life as predicted. This contradiction in the numerical prediction is attributed to the wear and degradation of the mining wheel as a result of environmental effects and localized damage imparted onto a mining wheel during operation.
Advisors/Committee Members: William Altenhof.
Subjects/Keywords: Applied sciences
Record Details
Similar Records
Cite
Share »
Record Details
Similar Records
Cite
« Share
❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Vijayan, V. (2008). Numerical model development of a heavy mining vehicle multi-piece wheel assembly for structural analysis. (Masters Thesis). University of Windsor. Retrieved from https://scholar.uwindsor.ca/etd/8053
Chicago Manual of Style (16th Edition):
Vijayan, Vivek. “Numerical model development of a heavy mining vehicle multi-piece wheel assembly for structural analysis.” 2008. Masters Thesis, University of Windsor. Accessed April 11, 2021.
https://scholar.uwindsor.ca/etd/8053.
MLA Handbook (7th Edition):
Vijayan, Vivek. “Numerical model development of a heavy mining vehicle multi-piece wheel assembly for structural analysis.” 2008. Web. 11 Apr 2021.
Vancouver:
Vijayan V. Numerical model development of a heavy mining vehicle multi-piece wheel assembly for structural analysis. [Internet] [Masters thesis]. University of Windsor; 2008. [cited 2021 Apr 11].
Available from: https://scholar.uwindsor.ca/etd/8053.
Council of Science Editors:
Vijayan V. Numerical model development of a heavy mining vehicle multi-piece wheel assembly for structural analysis. [Masters Thesis]. University of Windsor; 2008. Available from: https://scholar.uwindsor.ca/etd/8053
. 
Open Access Theses and Dissertations