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Structural Engineering and Mechanics
  Volume 56, Number 4, November25 2015 , pages 535-548
DOI: https://doi.org/10.12989/sem.2015.56.4.535
 


Effect of gas detonation on response of circular plate-experimental and theoretical
Hashem Babaei, Tohid Mirzababaie Mostofi and Seyed Hamidreza Sadraei

 
Abstract
    A series of experimental results on thin mild steel plates clamped at the boundary subjected to gas detonation shock loading are presented. Detonation occurred by mixing Acetylene (C2H2)-Oxygen (O2) in various volume ratio and different initial pressure. The applied impulse is varied to give deformation in the range from 6 mm to 35 mm. Analytical modeling using energy method was also performed. Dependent material properties, as well as strain rate sensitivity, are included in the theoretical modeling. Prediction values for midpoint deflections are compared with experimental data. The analytical predictions have good agreement with experimental values. Moreover, it has been shown that the obtained model has much less error compared with those previously proposed in the literature.
 
Key Words
    circular plate; large deformation; gas detonation forming; shock loading; theoretical modeling
 
Address
Hashem Babaei, Tohid Mirzababaie Mostofi and Seyed Hamidreza Sadraei: Department of Mechanical Engineering, University of Guilan, 3756-41635 Rasht, Iran
 

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