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Force ductility of asphalt binders
Smolka, Zdeněk ; Coufalík, Pavel (referee) ; Dašek, Ondřej (advisor)
The bachelor thesis describes a laboratory characteristics of bituminous binders. There will be described the principle and results of laboratory tests, needle penetration, softening point by ring and ball and force ductility. The tests will be performed on samples of the bituminous binders with different degrees of modification.
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Crash-Test Data Analysis - Frontal Impacts
Mikulášková, Lucie ; Ptáček, Petr (referee) ; Bradáč, Albert (advisor)
In this thesis are solved the problematics of crash tests. It is focused primarily on front impacts with full or part overlap. In the introduction are described the best known methods used in forensic - engineering practice for determination of energy equivalent speed (EES). Exactly specified impact tests, which are part of passive safety, are being addressed by several organizations around the world. In the practical part of this diploma thesis are solved four frontal impact tests, which were documented with the participation of the Institute of Forensic Ingeneering BUT in Brno.. These impact tests were performed to capture and analyze the data, resulting in the deformation energy used for permanent damage to the vehicle. Subsequently, the EES parameters were set for each vehicle.
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Crash-Test Data Analysis - Side Impacts
Tillhonová, Veronika ; Ptáček, Petr (referee) ; Bradáč, Albert (advisor)
The diploma thesis deals with crash tests. Many international organizations specialize directly in conducting crash tests. Impact test simulates vehicle collision. The three most common test are front, side, and backstreets. The diploma thesis focuses on side conflicts. Side clashes are characterized by the fact that the first vehicle is damaged at the front and the second in the side. The measured data from these tests was evaluated to obtain the deformation energy consumed for permanent damage to vehicles. Deformation energy was calculated as equivalent to the individual speed of individual vehicles. EES values have been evaluated by various methods used in expert practice and compared. The impact tests were simulated to clarify assistance to experts in the analysis of traffic accidents.
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Analysis and processing of measured data from crash tests
Klein, Martin ; Coufal, Tomáš (referee) ; Tokař, Stanislav (advisor)
This thesis presents four crash test of two cars, in which always a moving vehicle strikes with fully overlaid front part into the side part (cabin for passengers) of another stationary vehicle. Crash test were carried out to detect the impact parameters for use in the road accidents analysis. Experimentally measured data and the acquisition of documentation during crash tests were therefore analyzed in an appropriate manner in order to obtain relevant impact parameters. One of the main evaluated parameters was the deformation energy that has been used for the permanent damage to vehicles. In the forensic engineering practice for analyzing vehicle impacts is as a control parameter used EES (Energy Equivalent Speed), this parameter was counted according to measured values during crash tests.
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Crash-Test Data Analysis - Side Impacts
Tillhonová, Veronika ; Ptáček, Petr (referee) ; Bradáč, Albert (advisor)
The diploma thesis deals with crash tests. Many international organizations specialize directly in conducting crash tests. Impact test simulates vehicle collision. The three most common test are front, side, and backstreets. The diploma thesis focuses on side conflicts. Side clashes are characterized by the fact that the first vehicle is damaged at the front and the second in the side. The measured data from these tests was evaluated to obtain the deformation energy consumed for permanent damage to vehicles. Deformation energy was calculated as equivalent to the individual speed of individual vehicles. EES values have been evaluated by various methods used in expert practice and compared. The impact tests were simulated to clarify assistance to experts in the analysis of traffic accidents.
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|
|
Crash-Test Data Analysis - Frontal Impacts
Mikulášková, Lucie ; Ptáček, Petr (referee) ; Bradáč, Albert (advisor)
In this thesis are solved the problematics of crash tests. It is focused primarily on front impacts with full or part overlap. In the introduction are described the best known methods used in forensic - engineering practice for determination of energy equivalent speed (EES). Exactly specified impact tests, which are part of passive safety, are being addressed by several organizations around the world. In the practical part of this diploma thesis are solved four frontal impact tests, which were documented with the participation of the Institute of Forensic Ingeneering BUT in Brno.. These impact tests were performed to capture and analyze the data, resulting in the deformation energy used for permanent damage to the vehicle. Subsequently, the EES parameters were set for each vehicle.
|
|
|
Force ductility of asphalt binders
Smolka, Zdeněk ; Coufalík, Pavel (referee) ; Dašek, Ondřej (advisor)
The bachelor thesis describes a laboratory characteristics of bituminous binders. There will be described the principle and results of laboratory tests, needle penetration, softening point by ring and ball and force ductility. The tests will be performed on samples of the bituminous binders with different degrees of modification.
|
|
|
Analysis and processing of measured data from crash tests
Klein, Martin ; Coufal, Tomáš (referee) ; Tokař, Stanislav (advisor)
This thesis presents four crash test of two cars, in which always a moving vehicle strikes with fully overlaid front part into the side part (cabin for passengers) of another stationary vehicle. Crash test were carried out to detect the impact parameters for use in the road accidents analysis. Experimentally measured data and the acquisition of documentation during crash tests were therefore analyzed in an appropriate manner in order to obtain relevant impact parameters. One of the main evaluated parameters was the deformation energy that has been used for the permanent damage to vehicles. In the forensic engineering practice for analyzing vehicle impacts is as a control parameter used EES (Energy Equivalent Speed), this parameter was counted according to measured values during crash tests.
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Stiffness characteristic of front part of the vehicle
Coufal, Tomáš
So far, in the field of forensic engineering was used to describe the stiffness of the front part of the vehicle only central stiffness characteristic that can be used with sufficient accuracy for frontal crash with a full overlap. However, if the vehicle crashes with only partial overlap so can be central stiffness characteristic limitations in the accuracy of the calculation of the deformation energy. The present article deals with the stiffness of the each parts of the front part of the vehicle for their use in forensic expert practice. Stiffness characteristics was processed for each part of the vehicle, with which you can calculate the exact deformation energy for a specific front part of the vehicle which was damaged in a frontal collision.
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