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Simulation of friction and wear for a low-steel brake material based on experimental pv-mapping of its basic constituents

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Název: Simulation of friction and wear for a low-steel brake material based on experimental pv-mapping of its basic constituents
Autoři: Francesco, Varriale, Davide, Carlevaris, Yezhe, Lyu, Jens, Wahlström
Přispěvatelé: Lund University, Faculty of Engineering, LTH, Departments at LTH, Department of Industrial and Mechanical Sciences, Mechanics, Materials and Component Design, Lunds universitet, Lunds Tekniska Högskola, Institutioner vid LTH, Institutionen för industri- och maskinvetenskaper, Mekanik, Material och Komponentdesign, Originator, Lund University, Faculty of Engineering, LTH, LTH Profile areas, LTH Profile Area: Aerosols, Lunds universitet, Lunds Tekniska Högskola, LTH profilområden, LTH profilområde: Aerosoler, Originator
Zdroj: Wear. 572-573
Témata: Engineering and Technology, Mechanical Engineering, Other Mechanical Engineering, Teknik, Maskinteknik, Annan maskinteknik
Popis: The coefficient of friction (COF) and wear are critical parameters in assessing disc brake performance. However, their study is challenging due to their interdependence on contact pressure, sliding velocity, temperature, and material composition. The complex contact interactions between brake pads and discs involve the continuous formation and destruction of mesoscopic contact plateaus, which are highly influenced by individual pad constituents. To address this complexity, a mesoscale cellular automaton approach has been further developed to predict the impact of specific pad ingredients on brake performance. This method use COF and wear pressure-velocity maps of single pad ingredients derived from pin-on-disc (POD) tests. The findings of this study show that the simulated COF is qualitative in line with experimental data from dyno bench tests. However, an offset is observed between the simulated and experimental COF curves, likely due to differences in measurement methodologies between POD and inertia dynamometer bench tests. Additionally, the simulation provides insights into the evolution of the contact area during braking, offering a detailed analysis of the contribution of each raw material to its formation. Furthermore, it delivers critical information on the contact pressure each constituent can withstand, demonstrating, for instance, that metal fibres experience higher contact pressure than other ingredients, reaffirming their role as primary load carriers. The ability to predict these parameters early in the design phase is strategically advantageous, facilitating the development of friction pad materials and disc brake systems that optimize cost and time efficiency while advancing sustainability and environmental responsibility.
Přístupová URL adresa: https://doi.org/10.1016/j.wear.2025.206037
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Items – Name: Title
  Label: Title
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  Data: Simulation of friction and wear for a low-steel brake material based on experimental pv-mapping of its basic constituents
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  Data: <searchLink fieldCode="AR" term="%22Francesco%2C+Varriale%22">Francesco, Varriale</searchLink><br /><searchLink fieldCode="AR" term="%22Davide%2C+Carlevaris%22">Davide, Carlevaris</searchLink><br /><searchLink fieldCode="AR" term="%22Yezhe%2C+Lyu%22">Yezhe, Lyu</searchLink><br /><searchLink fieldCode="AR" term="%22Jens%2C+Wahlström%22">Jens, Wahlström</searchLink>
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  Data: Lund University, Faculty of Engineering, LTH, Departments at LTH, Department of Industrial and Mechanical Sciences, Mechanics, Materials and Component Design, Lunds universitet, Lunds Tekniska Högskola, Institutioner vid LTH, Institutionen för industri- och maskinvetenskaper, Mekanik, Material och Komponentdesign, Originator<br />Lund University, Faculty of Engineering, LTH, LTH Profile areas, LTH Profile Area: Aerosols, Lunds universitet, Lunds Tekniska Högskola, LTH profilområden, LTH profilområde: Aerosoler, Originator
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  Data: <i>Wear</i>. 572-573
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  Data: <searchLink fieldCode="DE" term="%22Engineering+and+Technology%22">Engineering and Technology</searchLink><br /><searchLink fieldCode="DE" term="%22Mechanical+Engineering%22">Mechanical Engineering</searchLink><br /><searchLink fieldCode="DE" term="%22Other+Mechanical+Engineering%22">Other Mechanical Engineering</searchLink><br /><searchLink fieldCode="DE" term="%22Teknik%22">Teknik</searchLink><br /><searchLink fieldCode="DE" term="%22Maskinteknik%22">Maskinteknik</searchLink><br /><searchLink fieldCode="DE" term="%22Annan+maskinteknik%22">Annan maskinteknik</searchLink>
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  Label: Description
  Group: Ab
  Data: The coefficient of friction (COF) and wear are critical parameters in assessing disc brake performance. However, their study is challenging due to their interdependence on contact pressure, sliding velocity, temperature, and material composition. The complex contact interactions between brake pads and discs involve the continuous formation and destruction of mesoscopic contact plateaus, which are highly influenced by individual pad constituents. To address this complexity, a mesoscale cellular automaton approach has been further developed to predict the impact of specific pad ingredients on brake performance. This method use COF and wear pressure-velocity maps of single pad ingredients derived from pin-on-disc (POD) tests. The findings of this study show that the simulated COF is qualitative in line with experimental data from dyno bench tests. However, an offset is observed between the simulated and experimental COF curves, likely due to differences in measurement methodologies between POD and inertia dynamometer bench tests. Additionally, the simulation provides insights into the evolution of the contact area during braking, offering a detailed analysis of the contribution of each raw material to its formation. Furthermore, it delivers critical information on the contact pressure each constituent can withstand, demonstrating, for instance, that metal fibres experience higher contact pressure than other ingredients, reaffirming their role as primary load carriers. The ability to predict these parameters early in the design phase is strategically advantageous, facilitating the development of friction pad materials and disc brake systems that optimize cost and time efficiency while advancing sustainability and environmental responsibility.
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