Anti-impact response of Kevlar sandwich structure with silly putty core
Anti-impact response of Kevlar sandwich structure with silly putty core
复制标题
腻子芯凯夫拉夹芯结构的抗冲击响应
DOI：
10.1016/j.compscitech.2017.10.019
复制
发表时间：
2017-12
影响因子：
9.1
通讯作者：
Gong Xinglong
中科院分区：
文献类型：
--
作者：
Xu Chenhui;Wang Yu;Wu Jie;Song Shichao;Cao Saisai;Xuan Shouhu;Jiang Wanquan;Gong Xinglong
制作了一种由两层Kevlar面板和一个傻腻子（SP）芯组成的软夹层结构。将CaCO 3粒子分散到聚硼二甲基硅氧烷中制备的SP的储能模量随剪切频率的增加而增加2 ~ 3个数量级。较高的CaCO 3含量导致更好的剪切硬化行为，这进一步提高了夹层结构的抗冲击性能。当冲击速度低于110 m/s时，能量全部由夹层结构耗散，最大能量耗散为20.8 J，比纯Kevlar增加60%。重要的是，在相同的冲击能量下，夹层结构在弹道冲击下的能量耗散比在低速冲击下高63%，这一定是由于剪切硬化的性质。并对这种优异的防护性能的机理进行了探讨。柔性夹层结构对加载速率的敏感性和可靠的耗能能力使其具有广泛的应用前景。
A soft sandwich structure consisting of two layer Kevlar face sheets and a silly putty (SP) core was fabricated. The storage modulus of SP, which was prepared by dispersing CaCO3particles into polyborodimethylsiloxane, increased by two to three orders of magnitude with increasing of the shear frequency. The higher CaCO3content resulted in better shear-hardening behavior, which further enhanced the anti-impact performance of the sandwich structure. When the impact velocity was below 110 m/s, all energy was dissipated by the sandwich structure and the maximum energy dissipation was 20.8 J, represented a 60% increment than the neat Kevlar. Importantly, under the same impact energy, the energy dissipation of the sandwich structure under ballistic impact was 63% higher than under low velocity impact, which must be due to the shear-hardening nature. The mechanism of the excellent protection performance was discussed. The sensitivity to loading rate and reliable energy dissipation of the soft sandwich structure widely broad its practical applications.
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DOI：
--
发表时间：
2004
期刊：
Glass science and technology
影响因子：
--
作者：
S. Atiq;R. Rawlings;A. Boccaccini
通讯作者：
S. Atiq;R. Rawlings;A. Boccaccini
DOI：
10.1016/j.compositesa.2013.12.004
发表时间：
2014-03
影响因子：
8.7
作者：
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通讯作者：
M. Hudspeth;A. Agarwal;B. Andrews;B. Claus;F. Hai;C. Funnell;James Q. Zheng;Weinong W. Chen
影响因子：
3.9
作者：
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通讯作者：
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影响因子：
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作者：
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通讯作者：
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可拉伸聚氨酯海绵支架增强抗剪聚合物及其增强防护性能
影响因子：
9.5
作者：
Wang Sheng;Xuan Shouhu;Wang Yunpeng;Xu Chenhui;Mao Ya;Liu Mei;Bai Linfeng;Jiang Wanquan;Gong Xinglong
通讯作者：
Gong Xinglong