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مجله بین المللی جامدات و سازه ها
جزئیات رویداد
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  • impact behavior of honeycombs under combined shear-compression. part ii: analysis

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    • تاریخ ارائه: 1392/01/01
    • تاریخ انتشار در تی پی بین: 1392/01/01
    • تعداد بازدید: 868
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    • شماره تماس دبیرخانه رویداد: -
     in this paper, a numerical virtual model of honeycomb specimen as a small structure is used to simulate its combined shear-compression behavior under impact loading. with abaqus/explicit code, the response of such a structure made of shell elements is calculated under prescribed velocities as those measured in the combined shear-compression tests presented in part i of this study. the simulated results agree well with the experimental ones in terms of overall pressure/crush curves and deformation modes. it allows for the determination of the separated normal behavior and shear behavior of honeycomb specimen under dynamic combined shear-compression. it is found that the normal strength of honeycombs decreases with increasing shearing load. quasi-static calculations were also performed and a significant dynamic strength enhancement found in experiments was validated again in the numerical work. a crushing envelope in normal strength vs. shear strength plane was obtained on the basis of these simulations.

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