Fatigue Sensitivity Analysis - A Powerful Tool for Structural Durability

Kharul, Ravindra; Pomaje, Sharad D.

doi:10.4271/990026

Cited by 5 publications

(1 citation statement)

References 3 publications

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“…This research implies a work phase in the model's development life cycle. By evaluating fatigue life prediction analytic capabilities early in the design process and applying computer-based digital processing techniques, which reflect material performance, the life cycle potential is greatly reduced [19]. Figure 14a,b illustrate the combined objective convergence and full sensitivity analysis of the 4130 steel material in the model.…”

Section: Discussion Of the Fatigue Sensitivity Analysis Of The Final ...mentioning

confidence: 99%

Lightweight Design and Analysis of Steering Knuckle of Formula Student Car Using Topology Optimization Method

Hasan,

Lu,

Liu

2023

WEVJ

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The steering knuckle is a crucial component of student racing vehicles, designed by the Formula Society of Automotive Engineers (FSAE). Developing a lightweight (LW) vehicle that meets the requirements of the student formula car presents a challenge. This study presents a LW design of the steering knuckle using the Topology Optimization (TO) approach for the Formula Society of Automotive Engineers (FSAE) competition considering two different mass constraints (40% and 48%). Moreover, the research includes Stress–Life (SN) curves for three materials, structural steel, 4130 steel, and AISI 1020 steel, providing essential insights into the fatigue characteristics of the model. The results compare the three materials and two mass reduction levels, with steel 4130 achieving a significant mass reduction of 42.70%. Additionally, steel 4130 exhibits superior performance in weight reduction, stress, deformation, and safety aspects. The optimized design meets the criteria for strength, stiffness, and safety under various conditions. The fatigue analysis reveals that AISI 1020 and steel 4130 have superior endurance (1 × 105 and 2 × 105 cycles, respectively). This research provides significant contributions to the development of a LW, high-performance steering knuckle for student formula racing vehicles, highlighting the significance of TO and material selection in achieving optimal outcomes.

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Section: Discussion Of the Fatigue Sensitivity Analysis Of The Final ...mentioning

confidence: 99%