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University of Cambridge > Talks.cam > Engineering Department Bio- and Micromechanics Seminars > Mechanics affecting the ballistic limit of thin metal plates
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If you have a question about this talk, please contact Ms Helen Gardner. Multi-impact of projectiles on thin 304 stainless steel plates is investigated to assess the degradation of ballistic performance, and to characterise the inherent mechanisms. Assessment of ballistic degradation is by means of a double-impact of rigid spheres at the same site on a circular clamped plate. The limiting velocity of the second impact, will be altered by the velocity of the antecedent impact. Finite element analyses were used to elucidate experimental results and understand the underlying mechanisms that give rise to the performance degradation. The effect of strength and ductility on the single and multi- impact performance was also considered. The model captured the experimental results with excellent agreement. Moreover, the material parameters used within the model were exclusively obtained from published works with no fitting or calibration required. An attempt is made to quantify the elevation of the ballistic limit of thin plates by the dynamic mechanism of travelling hinges. This talk is part of the Engineering Department Bio- and Micromechanics Seminars series. This talk is included in these lists:
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