CN110576645A - 一种多孔结构复合板 - Google Patents
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Abstract
本发明提供了一种多孔结构复合板,从上而下依次包括上防护板、多孔复合夹层、增强管及下防护板;所述多孔复合夹层沿竖直方向设置有让位通道,所述增强管插入所述让位通道固定;所述多孔复合夹层依次从上而下依次包括上三维多孔层、中间蜂窝层及下三维多孔层;所述上三维多孔层及下三维多孔层具体均由两层三棱锥网状结构交错层叠形成。应用本技术方案可实现提高汽车的被动安全性。
Description
技术领域
本发明涉及吸能防护领域,具体是指一种多孔结构复合板。
背景技术
现如今,“高速”和“节能”已成为交通运输行业发展的主要趋势。然而,在国明经济显著提高的今天,汽车保有量大幅增长,随之而来的便是频频发生的交通事故和日益严重的环境污染。为了增强汽车的被动安全性,提高汽车的轻量化,有必要研究一种兼具优越耐撞性能和轻质特性的材料结构,作为汽车关键部位的车身材料,从而满足汽车工业发展的趋势。
发明内容
本发明的目的在于提供一种多孔结构复合板,实现提高汽车的被动安全性。
为了解决上述技术问题,本发明提供了一种多孔结构复合板,从上而下依次包括上防护板、多孔复合夹层、增强管及下防护板;所述多孔复合夹层沿竖直方向设置有让位通道,所述增强管插入所述让位通道固定;所述多孔复合夹层依次从上而下依次包括上三维多孔层、中间蜂窝层及下三维多孔层;所述上三维多孔层及下三维多孔层具体均由两层三棱锥网状结构交错层叠形成。
在一较佳的实施例中,一个三棱锥的三条侧棱构成一个三棱锥网状基本单元,所述三棱锥网状结构具体由三棱锥网状基本单元的侧棱的末端之间拼接形成;所述三棱锥网状基本单元的顶部均切除一块形成平面顶部;所述三棱锥网状基本单元之间的侧棱的末端拼接形成连接底部。
在一较佳的实施例中,两层所述的三棱锥网状结构交错层叠使得上一层所述的三棱锥网状结构的平面顶部对应下一层所述的三棱锥网状结构的连接底部。
在一较佳的实施例中,所述三棱锥的侧棱与水平平面的夹角为30°。
在一较佳的实施例中,所述中间蜂窝层具体由正方形基本单元阵列排布形成。
在一较佳的实施例中,所述两个圆形结构两两之间通过曲线连接形成所述正方形基本单元的边长。
在一较佳的实施例中,相邻的两个圆形结构分别置于大圆之中,且所述圆形结构的半径为所述大圆半径的一半,两个大圆相切设置,两个圆形结构分别内切于所述大圆的左侧及右侧;所述曲线的起点与终点分别为两个圆形结构与两个大圆的切点,沿两个大圆的周向连接两个切点形成所述曲线。
在一较佳的实施例中,所述上防护板从上至下依次包括芳纶纤维铺层和钛合金层;所述下防护板从上之下依次包括上钛合金层、中间钛合金制的梯形瓦楞夹层和下钛合金层。
在一较佳的实施例中,所述梯形瓦楞夹层的侧视图具体为多个梯形状的侧边相互交错抵接连接形成的长条。
在一较佳的实施例中,所述上防护板、多孔复合夹层及下防护板之间通过环氧树脂粘合;所述增强管与让位通道的内壁之间通过环氧树脂粘合;所述中间蜂窝层与上三维多孔层及下三维多孔层之间还分别设置有上铝箔层及下铝箔层,所述上三维多孔层、上铝箔层、中间蜂窝层、下铝箔层及下三维多孔层之间均通过环氧树脂粘合。
相较于现有技术,本发明的技术方案具备以下有益效果:
1.具有优良的耐撞性。钛合金和芳纶纤维均具有优良的力学性能,采用纤维复合金属的结构能够结合两者优势,改善金属单一结构抗拉性能不足的缺陷。其次多孔复合夹层中,三棱锥网状结构通过弹性变形塑性变形再到致密阶段,以较小的形变量吸收大量的能量,提高结构的吸能性。中间螺旋状蜂窝不仅能降低峰值破坏力,还能通过逐级折叠,使承载能力更加平稳。圆形的碳纤维管具有很高的强度,能提高复合板的承载能力。
2.具有良好的抗振和缓冲效果。多孔结构具有良好的能量吸收特性,当振动波通过多孔结构的复核夹层时,被层层吸收,减少实现减振。而下防护板中的瓦楞夹层具有良好的缓冲作用,
3.轻量化水平高,密度小,钛合金和芳纶纤维都是具有高度轻量化水平的材料,而复合夹层为多孔结构,具有质量低密度小的特性。
4.耐热、耐腐蚀,该复合板的上、下表面都附有芳纶纤维,具有良好的耐热耐腐蚀的特性
附图说明
图1为本发明优选实施例中多孔结构复合板的整体结构爆炸图;
图2为本发明优选实施例中上防护板结构示意图;
图3为本发明优选实施例中下防护板结构示意图;
图4为本发明优选实施例中多孔复合夹层结构示意图;
图5为本发明优选实施例中三棱锥网状基本单元结构示意图;
图6为本发明优选实施例中三棱锥网状结构示意图;
图7为本发明优选实施例中三棱锥网状结构双层叠加示意图;
图8为本发明优选实施例中上三维多孔层的竖直方向剖面示意图;
图9为本发明优选实施例中三棱锥网状基本单元的侧棱与水平平面夹角关系示意图;
图10为本发明优选实施例中中间蜂窝层结构示意图;
图11为本发明优选实施例中圆形结与曲线之间的位置关系示意图。
具体实施方式
下文结合附图和具体实施方式对本发明做进一步说明。
一种多孔结构复合板,参考图1至11,从上而下依次包括上防护板1、多孔复合夹层2、增强管4及下防护板3;所述多孔复合夹层2沿竖直方向设置有让位通道,所述增强管4插入所述让位通道固定,在本实施例中,所述增强管4具体为碳纤维增强管;所述多孔复合夹层2依次从上而下依次包括上三维多孔层201、中间蜂窝层203及下三维多孔层202;所述上三维多孔层201及下三维多孔层202具体均由两层三棱锥网状结构207交错层叠形成。
具体来说,一个三棱锥的三条侧棱2061构成一个三棱锥网状基本单元206,所述三棱锥网状结构207具体由三棱锥网状基本单元206的侧棱2061的末端之间拼接形成;所述三棱锥网状基本单元206的顶部均切除一块形成平面顶部2062;所述三棱锥网状基本单元之间的侧棱的末端拼接形成连接底部2063。参考图8,两层所述的三棱锥网状结构207交错层叠使得上一层所述的三棱锥网状结构207的平面顶部对应下一层所述的三棱锥网状结构207的三个不同的三棱锥的三条侧棱2061末端的拼接处即连接底部2063。所述三棱锥的侧棱2061与水平平面的夹角为30°。多孔结构具有良好的能量吸收特性,当振动波通过多孔结构的复核夹层时,被层层吸收,减少实现减振。而下防护板3中的瓦楞夹层具有良好的缓冲作用,
具体来说,所述中间蜂窝层203具体由正方形基本单元阵列排布形成。所述两个圆形结构2011两两之间通过曲线2012连接形成所述正方形基本单元的边长。相邻的两个圆形结构2011分别置于大圆2013之中,且所述圆形结构2011的半径为所述大圆2013半径的一半,两个大圆2013相切设置,两个圆形结构2011分别内切于所述大圆2013的左侧及右侧;所述曲线2012的起点与终点分别为两个圆形结构2011与两个大圆2013的切点,沿两个大圆2013的周向连接两个切点形成所述曲线2012。
具体来说,所述上防护板1从上至下依次包括芳纶纤维铺层11和钛合金层12;所述下防护板3从上之下依次包括上钛合金层31、中间钛合金制的梯形瓦楞夹层32和下钛合金层33。所述梯形瓦楞夹层32的侧视图具体为多个梯形状的侧边相互交错抵接连接形成的长条。钛合金和芳纶纤维均具有优良的力学性能,采用纤维复合金属的结构能够结合两者优势,改善金属单一结构抗拉性能不足的缺陷。其次多孔复合夹层2中,三棱锥网状结构207通过弹性变形塑性变形再到致密阶段,以较小的形变量吸收大量的能量,提高结构的吸能性。中间螺旋状蜂窝不仅能降低峰值破坏力,还能通过逐级折叠,使承载能力更加平稳。圆形的碳纤维管具有很高的强度,能提高复合板的承载能力。钛合金和芳纶纤维都是具有高度轻量化水平的材料,而复合夹层为多孔结构,具有质量低密度小的特性。耐热、耐腐蚀,该复合板的上、下表面都附有芳纶纤维,具有良好的耐热耐腐蚀的特性
在本实施例中,所述上防护板1、多孔复合夹层2及下防护板3之间通过环氧树脂粘合;所述增强管4与让位通道的内壁之间通过环氧树脂粘合。为了提高所述中间蜂窝层203与上三维多孔层201及下三维多孔层202之间的粘合强度,所述中间蜂窝层203与上三维多孔层201及下三维多孔层202之间还分别设置有上铝箔层204层及下铝箔层205,所述上三维多孔层201、上铝箔层204层、中间蜂窝层203、下铝箔层205及下三维多孔层202之间均通过环氧树脂粘合。
以上所述,仅为本发明较佳的具体实施方式,但本发明的设计构思并不局限于此,任何熟悉本技术领域的技术人员在本发明揭露的技术范围内,利用此构思对本发明进行非实质性的改动,均属于侵犯本发明保护范围的行为。
Claims (10)
1.一种多孔结构复合板,其特征在于从上而下依次包括上防护板、多孔复合夹层、增强管及下防护板;所述多孔复合夹层沿竖直方向设置有让位通道,所述增强管插入所述让位通道固定;所述多孔复合夹层依次从上而下依次包括上三维多孔层、中间蜂窝层及下三维多孔层;所述上三维多孔层及下三维多孔层具体均由两层三棱锥网状结构交错层叠形成。
2.根据权利要求1所述的多孔结构复合板,其特征在于,一个三棱锥的三条侧棱构成一个三棱锥网状基本单元,所述三棱锥网状结构具体由三棱锥网状基本单元的侧棱的末端之间拼接形成;所述三棱锥网状基本单元的顶部均切除一块形成平面顶部;所述三棱锥网状基本单元之间的侧棱的末端拼接形成连接底部。
3.根据权利要求2所述的多孔结构复合板,其特征在于,两层所述的三棱锥网状结构交错层叠使得上一层所述的三棱锥网状结构的平面顶部对应下一层所述的三棱锥网状结构的连接底部。
4.根据权利要求3所述的多孔结构复合板,其特征在于,所述三棱锥的侧棱与水平平面的夹角为30°。
5.根据权利要求1所述的多孔结构复合板,其特征在于,所述中间蜂窝层具体由正方形基本单元阵列排布形成。
6.根据权利要求5所述的多孔结构复合板,其特征在于,所述两个圆形结构两两之间通过曲线连接形成所述正方形基本单元的边长。
7.根据权利要求6所述的多孔结构复合板,其特征在于,相邻的两个圆形结构分别置于大圆之中,且所述圆形结构的半径为所述大圆半径的一半,两个大圆相切设置,两个圆形结构分别内切于所述大圆的左侧及右侧;所述曲线的起点与终点分别为两个圆形结构与两个大圆的切点,沿两个大圆的周向连接两个切点形成所述曲线。
8.根据权利要求1至7中任意一项所述的多孔结构复合板,其特征在于,所述上防护板从上至下依次包括芳纶纤维铺层和钛合金层;所述下防护板从上之下依次包括上钛合金层、中间钛合金制的梯形瓦楞夹层和下钛合金层。
9.根据权利要求8所述的多孔结构复合板,其特征在于,所述梯形瓦楞夹层的侧视图具体为多个梯形状的侧边相互交错抵接连接形成的长条。
10.根据权利要求8所述的多孔结构复合板,其特征在于,所述上防护板、多孔复合夹层及下防护板之间通过环氧树脂粘合;所述增强管与让位通道的内壁之间通过环氧树脂粘合;所述中间蜂窝层与上三维多孔层及下三维多孔层之间还分别设置有上铝箔层及下铝箔层,所述上三维多孔层、上铝箔层、中间蜂窝层、下铝箔层及下三维多孔层之间均通过环氧树脂粘合。
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