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<p>Anti-roll bars (ARBs) are critical components in automotive suspension systems, enhancing stability, handling, and safety. However, failures in ARBs, particularly at high stress locations, compromise their performance and durability. Addressing these issues is essential to ensure reliability and durability in modern vehicles. This study systematically investigates the root causes of ARB failures, including corner bend, bushing degradation, and fatigue failure, through a detailed analysis of materials and characteristics, heat treatment and hardness properties, manufacturing process, and fatigue and fracture analysis. The principal objectives include identifying stress concentration areas, evaluating fatigue life, and proposing optimized design solutions to enhance durability. This study presents a systematic design methodology for optimizing anti-roll bars (ARBs) to enhance durability and performance. Key approaches include geometric modifications, such as adjusting bend radii and arm lengths, to reduce stress concentrations. Alternative cross sectional designs, including hollow and ovalized profiles, are evaluated for improved fatigue resistance. The strategic material selection combined with surface treatment techniques promotes longevity through optimized residual stress distribution. Additionally, innovative bushing configurations significantly reduced wear-induced degradation. These methodologies provide actionable strategies for developing more reliable and efficient ARB systems, ensuring better vehicle stability and longevity.</p>

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A Review on Durability and Performance Enhancement of Anti-Roll Bars: Failure Diagnostic and Preventive Approaches

  • 期刊论文

  • 发表日期：

    2025年10月3日

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  • Amol Bhanage,
  • Nilesh Dhobale,
  • Nilesh Satonkar

摘要

Anti-roll bars (ARBs) are critical components in automotive suspension systems, enhancing stability, handling, and safety. However, failures in ARBs, particularly at high stress locations, compromise their performance and durability. Addressing these issues is essential to ensure reliability and durability in modern vehicles. This study systematically investigates the root causes of ARB failures, including corner bend, bushing degradation, and fatigue failure, through a detailed analysis of materials and characteristics, heat treatment and hardness properties, manufacturing process, and fatigue and fracture analysis. The principal objectives include identifying stress concentration areas, evaluating fatigue life, and proposing optimized design solutions to enhance durability. This study presents a systematic design methodology for optimizing anti-roll bars (ARBs) to enhance durability and performance. Key approaches include geometric modifications, such as adjusting bend radii and arm lengths, to reduce stress concentrations. Alternative cross sectional designs, including hollow and ovalized profiles, are evaluated for improved fatigue resistance. The strategic material selection combined with surface treatment techniques promotes longevity through optimized residual stress distribution. Additionally, innovative bushing configurations significantly reduced wear-induced degradation. These methodologies provide actionable strategies for developing more reliable and efficient ARB systems, ensuring better vehicle stability and longevity.