EXPERIMENTAL EVALUATION OF VEHICLE BODY STRUCTURAL JOINTS STIFFNESS AND COMPARING THE RESULTS WITH NUMERICAL ANALYSIS

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HAMEDI M.; ELAH BEDASHTI A.A.

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Journal: Year:2002 | Volume:36 | Issue:1 (75) Page(s): 63-75

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Title

EXPERIMENTAL EVALUATION OF VEHICLE BODY STRUCTURAL JOINTS STIFFNESS AND COMPARING THE RESULTS WITH NUMERICAL ANALYSIS

Author(s)

HAMEDI M. | ELAH BEDASHTI A.A. | Issue Writer Certificate

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Abstract

The studies on vehicle body joints show their non-rigid behavior. In other words, when the body is exposed to load or forced displacement, its response is partially related to the magnitude of the flexibility of the joints between the structural members. Neglecting the joints flexibility and considering them as rigid connections may lead to substantial error in analyzing body structural stiffness. The displacement value of the joint area is remarkable compared with the displacement of the loaded point. This shows the importance of the subject for which sufficient attention must be paid if an accurate evaluation of the body behavior under different load conditions is desired. The present work investigates the elastic behavior of a T-shaped joint and renders a method for its stiffness evaluation. In this method partial displacement of the loaded point caused by joint area displacement is measured. Then the stiffness of the joint area in terms of the torque causing one radian angular displacement of the joint is calculated. Moreover, the stiffness of a T-shaped joint of a vehicle body designed and manufactured in a local vehicle maker is determined. The results pertaining displacement of the joint area show importance of the joints stiffness. At last, the experimental results are verified through finite element analysis of the model using commercial software. Comparing the results shows appropriate agreement between analytical and experimental results.

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APA: Copy

HAMEDI, M., & ELAH BEDASHTI, A.A.. (2002). EXPERIMENTAL EVALUATION OF VEHICLE BODY STRUCTURAL JOINTS STIFFNESS AND COMPARING THE RESULTS WITH NUMERICAL ANALYSIS. JOURNAL OF FACULTY OF ENGINEERING (UNIVERSITY OF TEHRAN), 36(1 (75)), 63-75. SID. https://sid.ir/paper/14514/en

Vancouver: Copy

HAMEDI M., ELAH BEDASHTI A.A.. EXPERIMENTAL EVALUATION OF VEHICLE BODY STRUCTURAL JOINTS STIFFNESS AND COMPARING THE RESULTS WITH NUMERICAL ANALYSIS. JOURNAL OF FACULTY OF ENGINEERING (UNIVERSITY OF TEHRAN)[Internet]. 2002;36(1 (75)):63-75. Available from: https://sid.ir/paper/14514/en

IEEE: Copy

M. HAMEDI, and A.A. ELAH BEDASHTI, “EXPERIMENTAL EVALUATION OF VEHICLE BODY STRUCTURAL JOINTS STIFFNESS AND COMPARING THE RESULTS WITH NUMERICAL ANALYSIS,” JOURNAL OF FACULTY OF ENGINEERING (UNIVERSITY OF TEHRAN), vol. 36, no. 1 (75), pp. 63–75, 2002, [Online]. Available: https://sid.ir/paper/14514/en

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