Forensic Engineering Study on Assessment of Damage to Aerial Lifter Parts

고소작업차 부품 손상 평가에 관한 법공학적 연구

  • Kim, Eui-Soo (National Institute of Scientific Investigation)
  • Received : 2010.02.22
  • Accepted : 2010.08.27
  • Published : 2010.11.01


Forensic engineering is the area of expertise of people qualified to serve as engineering experts in courts of law or during arbitration proceedings. An aerial-lifter can lift and carry load, including people, using power. Recently, failure of aerial-lifter internal parts while working and sweeping causing injuries and damage to property almost always generates conflict between the automaker and customer. Hence, the investigation of such events generally involves an engineering analysis. One of the possible reasons for accidents, such as a vehicle catching fire is the failure of oil pressure machine and the supporting pin. The results of formal inspections and engineering tests can reveal the cause for the failure of the mechanical parts. Therefore, the failure mechanism is analyzed by adopting fractography methods and by applying an instrumented indentation technique to compare the material properties of the reference part with those of the malfunctioning part.


Forensic Engineering;Instrumented Indentation Technique;Failure;Fractography;Accident Investigation


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