CN115320183B - 具有s构型增强结构的蜂窝芯体 - Google Patents
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Abstract
本发明涉及蜂窝芯体设计技术领域,具体公开了种具有S构型增强结构的蜂窝芯体,包括多个的呈蜂窝状排列且横截面为多边形的柱体单胞,柱体单胞分为普通单胞和S构型增强单胞,普通单胞的内腔中空,S构型增强单胞的内腔设有S构型增强结构,S构型增强结构的横截面为S形且将S构型增强单胞的内腔平均分成两半。本发明通过控制S构型增强单胞发生旋转,有效的引导了载荷的传递路径,改变了结构中塑性坍缩的发生位置,最终改变芯体的峰值载荷,在不同的工况需求下,通过对S构型增强结构排列方式的设计,可以使芯体产生不同的峰值载荷,具有S构型增强结构的蜂窝芯体其峰值载荷呈现可设计性,可以满足不同的工程应用需求。
Description
技术领域
本发明涉及蜂窝芯体设计技术领域,尤其涉及一种具有S构型增强结构的蜂窝芯体。
背景技术
蜂窝夹芯结构是一种将较高强度/高模量的面板与低密度、具有功能性的蜂窝芯体有机结合的多相材料,该结构不仅能极大地提高材料利用率、减轻结构质量,同时,还可以通过合理选择蜂窝的微结构,有效提高夹芯结构的抗环境损伤能力以及减振、隔热、隔音等性能。
由于高强度/高模量面板与蜂窝芯体之间的材料性能差距明显,常出现蜂窝芯体局部破坏、界面分层等破坏形式,限制了蜂窝夹芯结构的力学性能。而目前受到广泛关注的3D点阵芯体设计存在增强结构与被增强结构材料本构不同、工艺过于复杂、制造成本过高或无法投入工业生产等诸多问题。
发明内容
本发明的目的是提供一种具有S构型增强结构的蜂窝芯体,以提高蜂窝夹芯结构的力学性能。
为了解决上述技术问题,本发明提供了一种具有S构型增强结构的蜂窝芯体,包括多个的呈蜂窝状排列且横截面为多边形的柱体单胞,所述柱体单胞分为普通单胞和S构型增强单胞,所述普通单胞的内腔中空,所述S构型增强单胞的内腔设有S构型增强结构,所述S构型增强结构的横截面为S形且将所述S构型增强单胞的内腔平均分成两半。
优选地,所述S构型增强单胞由两个普通单胞通过捏挤工艺挤压制成。
优选地,所述S构型增强单胞通过一体化成型工艺制成。
优选地,两个S构型增强单胞之间间隔至少一个普通单胞。
优选地,所述S构型增强单胞为多列,每列包含多个S构型增强单胞,同一列的S构型增强单胞的S构型增强结构的S形方向相同,相邻两列的S构型增强结构的S形方向相同或者相反。
优选地,所述S构型增强单胞的数量占柱体单胞总数的10%-50%。
优选地,所述柱体单胞的横截面为六边形。
优选地,所述柱体单胞的材质为金属材料、碳纤维材料或芳纶纸材料。
优选地,所述柱体单的孔径为2mm-26mm,壁厚为0.04mm-0.1mm,高度为2mm-590mm。
优选地,所述S构型增强结构的厚度为柱体单胞壁厚的二倍。
本发明的具有S构型增强结构的蜂窝芯体对普通均匀蜂窝进行二次加工,使蜂窝芯体中部分单胞变为具有S构型增强结构的单胞,这一结构通过控制S构型增强单胞发生旋转,有效的引导了载荷的传递路径,改变了结构中塑性坍缩的发生位置,最终改变芯体的峰值载荷,在不同的工况需求下,通过对S构型增强结构排列方式的设计,可以使芯体产生不同的峰值载荷,具有S构型增强结构的蜂窝芯体其峰值载荷呈现可设计性,可以满足不同的工程应用需求。另外,改善了原有普通均匀芯体的破坏方式,具有S构型增强结构的蜂窝芯体逐行破坏,使芯体能够可控有序破坏,改善了原有普通均匀芯体的破坏模态,在作为夹芯结构的芯体时,能够改善芯体与面板之间的界面性能,提高蜂窝夹芯板的力学承载性能,具有S构型增强结构的蜂窝芯体作为夹芯结构芯体时,芯体能够实现可控有序破坏,从而显著提高夹芯板的吸能性能,具有S构型增强结构的蜂窝芯体直接在普通均匀蜂窝芯体的基础上捏挤生成,对加工设备要求低,加工工艺简单,加工后的增强结构与芯体之间连接效果好,结构缺陷少。
附图说明
图1为本发明实施例的具有S构型增强结构的蜂窝芯体二维示意图;
图2为本发明实施例的具有S构型增强结构的蜂窝芯体三维示意图;
图3为本发明实施例的具有S构型增强结构的蜂窝芯体载荷传递示意图;
图4为本发明实施例的具有S构型增强结构的蜂窝芯体反向试件示意图;
图5为本发明实施例的具有S构型增强结构的蜂窝芯体同向试件示意图;
图6为本发明实施例的具有反向S构型增强结构的蜂窝芯体载荷-位移图;
图7为本发明实施例的具有同向S构型增强结构的蜂窝芯体载荷-位移图。
图中,1:普通单胞;2:S构型增强单胞;3:S构型增强结构。
具体实施方式
下面结合附图和实施例对本发明的实施方式作进一步详细描述。以下实施例用于说明本发明,但不能用来限制本发明的范围。
如图1-2所示,本实施例的具有S构型增强结构的蜂窝芯体包括:多个的呈蜂窝状排列且无上下表面横截面为多边形的柱体单胞,柱体单胞可以是尺寸相同的柱体单胞,也可以是壁厚,孔径等有差异的分级柱体单胞。柱体单胞分为普通单胞1和S构型增强单胞2,普通单胞1的内腔中空,S构型增强单胞2的内腔设有S构型增强结构3,S构型增强结构3的横截面为S形且将S构型增强单胞2的内腔平均分成两半。
S构型增强单胞2可以由两个普通单胞1通过捏挤工艺挤压制成,所形成的S构型增强结构3厚度通常为壁厚的两倍,图1、2、4、5中所示的均为通过挤压两个单胞的侧壁形成的S构型增强结构3,形成S构型增强结构3的两片侧壁应尽量贴合,理想状态为完全贴合,但由于挤压技术等原因,实际操作过程中可能会让两片侧壁之间产生一些缝隙。S构型增强单胞2也可以通过一体化成型工艺制成,此种情况S构型增强结构3为实心的S形壁状结构。
根据不同设计需要,S构型增强结构3的排布间隔最小为一个普通单胞1,两个S构型增强单胞2之间间隔至少一个普通单胞1,最大不限单胞数量。S构型增强单胞2为多列,每列包含多个S构型增强单胞2,同一列的S构型增强单胞2的S构型增强结构3的S形方向相同,相邻两列的S构型增强结构3的S形方向相同或者相反。S构型增强结构3的方向可以为正S向(芯体受载时引导增强单胞逆时针旋转),也可以为负S向(芯体受载时引导增强单胞顺时针旋转),根据不同设计需要,具有S构型增强结构3的蜂窝芯体中增强结构的方向可以任意组合排列,以改变芯体的峰值载荷及破坏模态,当相邻的S构型增强结构3越接近反向时,具有S构型增强结构3的蜂窝芯体破坏模态越接近逐层破坏,当相邻的S构型增强结构3越接近同向时,具有S构型增强结构3的蜂窝芯体破坏模态越接近整体剪切破坏,并使峰值载荷可以被设计在某一阈值内。具有反向S构型增强结构的蜂窝芯体试件如图4。具有同向S构型增强结构的蜂窝芯体试件如图5。对普通的均匀铝蜂窝芯体中部分蜂窝单胞进行捏挤工艺处理,形成8条呈S形的增强蜂窝结构。
本实施例中,柱体单胞的横截面为六边形。材料为5052铝合金,也可以为其他金属材料、碳纤维材料或芳纶纸材料。柱体单的孔径为2mm-26mm,壁厚为0.04mm-0.1mm,通常不超过蜂窝芯体孔径的5%,高度为2mm-590mm,优选孔径6mm,壁厚0.06mm,高度为20mm,蜂窝芯体试件长150mm,宽100mm。S构型增强结构3的厚度为柱体单胞壁厚的二倍左右。S构型增强单胞2的数量占柱体单胞总数的10%-50%,优选47%。
具有S构型增强结构的蜂窝芯体作为夹芯结构的芯体时可以通过热压、粘接或焊接等方式与面板结合,面板包括金属面板、聚合物面板、纤维增强复合材料面板。
本实施例的工作原理和工作过程:在芯体承受与S构型增强结构同一方向的面内压缩载荷时,载荷通过蜂窝壁在各个蜂窝单胞之间传递。在传递到S构型增强的蜂窝单胞时,载荷挤压蜂窝单胞壁的同时挤压S构型增强结构。随着载荷增加,S构型增强结构发生旋转,引导整个具有S构型增强的单胞旋转,并拉伸未增强单胞的蜂窝壁,如图3所示。这一载荷传递过程能够有效优化载荷传递路径,改变芯体破坏模态,从而改变芯体的峰值载荷。
普通均匀蜂窝芯体、具有反向S构型增强结构的蜂窝芯体和的具有同向S构型增强结构的蜂窝芯体试件载荷位移曲线如图6-7所示。结果显示,在初始加载阶段,具有反向S构型增强的蜂窝芯体试件的抗压刚度要高于普通均匀蜂窝芯体试件;在破坏模态上,在线弹性阶段普通均匀蜂窝芯体试件呈现均匀变形。当载荷超过芯体的极限载荷后,试件内的变形开始局域化。在变形区域,孔穴按不对称剪切变形模式坍缩,而在远离该区域的部分变形仍保持对称和均匀。随着载荷的增加,坍缩变形区域向两端拓展。具有同向S构型增强结构的蜂窝芯体两增强结构之间的单胞在塑性坍缩模式上与普通均匀单胞相同,可以看到普通均匀蜂窝芯体出现了局域化的单胞破坏,随着位移的增加,迅速拓展到整个芯体。由于同向S构型增强结构的存在,具有同向S构型增强结构的蜂窝芯体沿虚线方向发生了明显的剪切破坏,引导了单胞塑性坍缩的方向和位置,改变了芯体单胞间塑性坍缩的拓展和关联,进而改变了芯体的峰值载荷。
表1给出了普通均匀蜂窝芯体和具有反向S构型增强结构的蜂窝芯体在加载速度1mm/min时平均峰值载荷和比峰值载荷对比,具有反向S构型增强结构的蜂窝芯体相对普通均匀芯体质量增加了63%,具有反向S构型增强结构的蜂窝芯体的平均峰值载荷为167.84N,相比于普通均匀蜂窝芯体的77.82N,提高了115.68%。具有反向S构型增强结构的蜂窝芯体的平均比峰值载荷为6.22N/g,相比于普通均匀蜂窝的4.39N/g,提高了41.6%。
表1
表2给出了普通均匀蜂窝芯体和具有同向S构型增强蜂窝芯体在加载速度1mm/min时平均峰值载荷和比峰值载荷对比,具有同向S构型增强结构的蜂窝芯体的平均峰值载荷为99.70N,相比于普通均匀蜂窝芯体的77.82N,提高了28.12%。具有同向S构型增强结构的蜂窝芯体的平均比峰值载荷为3.78N/g,相比于普通均匀蜂窝的4.39N/g,降低了13.90%。
表2
由以上可以看出,具有S构型增强结构的蜂窝芯体,可以通过改变S构型增强结构的数量和方向排列可控的改变芯体承载能力,根据不同的工况条件调整以获得不同的破坏模态和峰值载荷。具有S构型增强结构的蜂窝芯体相邻两S构型增强结构越趋近反向,破坏模态趋近于逐行破坏,比峰值载荷较普通均匀蜂窝芯体明显提高;相邻两S构型增强结构越趋近同向,破坏模态趋近于整体剪切破坏,比峰值载荷较普通均匀蜂窝芯体有所下降。
本发明的具有S构型增强结构的蜂窝芯体对普通均匀蜂窝进行二次加工,使蜂窝芯体中部分单胞变为具有S构型增强结构的单胞,这一结构通过控制S构型增强单胞发生旋转,有效的引导了载荷的传递路径,改变了结构中塑性坍缩的发生位置,最终改变芯体的峰值载荷,在不同的工况需求下,通过对S构型增强结构排列方式的设计,可以使芯体产生不同的峰值载荷,具有S构型增强结构的蜂窝芯体其峰值载荷呈现可设计性,可以满足不同的工程应用需求。另外,改善了原有普通均匀芯体的破坏方式,具有S构型增强结构的蜂窝芯体逐行破坏,使芯体能够可控有序破坏,改善了原有普通均匀芯体的破坏模态,在作为夹芯结构的芯体时,能够改善芯体与面板之间的界面性能,提高蜂窝夹芯板的力学承载性能,具有S构型增强结构的蜂窝芯体作为夹芯结构芯体时,芯体能够实现可控有序破坏,从而显著提高夹芯板的吸能性能,具有S构型增强结构的蜂窝芯体直接在普通均匀蜂窝芯体的基础上捏挤生成,对加工设备要求低,加工工艺简单,加工后的增强结构与芯体之间连接效果好,结构缺陷少。
本发明的实施例是为了示例和描述起见而给出的,而并不是无遗漏的或者将本发明限于所公开的形式。很多修改和变化对于本领域的普通技术人员而言是显而易见的。选择和描述实施例是为了更好说明本发明的原理和实际应用,并且使本领域的普通技术人员能够理解本发明从而设计适于特定用途的带有各种修改的各种实施例。
Claims (6)
1.一种具有S构型增强结构的蜂窝芯体,其特征在于,包括多个的呈蜂窝状排列且横截面为多边形的柱体单胞,所述柱体单胞分为普通单胞和S构型增强单胞,所述普通单胞的内腔中空,所述S构型增强单胞的内腔设有S构型增强结构,所述S构型增强单胞由两个普通单胞通过捏挤工艺挤压制成,所述S构型增强结构的横截面为S形且将所述S构型增强单胞的内腔平均分成两半,两个S构型增强单胞之间间隔至少一个普通单胞,所述S构型增强单胞为多列,每列包含多个S构型增强单胞,同一列的S构型增强单胞的S构型增强结构的S形方向相同,相邻两列的S构型增强结构的S形方向相同或者相反,所述S构型增强单胞的数量占柱体单胞总数的10%-50%。
2.根据权利要求1所述的具有S构型增强结构的蜂窝芯体,其特征在于,所述S构型增强单胞通过一体化成型工艺制成。
3.根据权利要求1所述的具有S构型增强结构的蜂窝芯体,其特征在于,所述柱体单胞的横截面为六边形。
4.根据权利要求1所述的具有S构型增强结构的蜂窝芯体,其特征在于,所述柱体单胞的材质为金属材料、碳纤维材料或芳纶纸材料。
5.根据权利要求1所述的具有S构型增强结构的蜂窝芯体,其特征在于,所述柱体单的孔径为2mm-26mm,壁厚为0.04mm-0.1mm,高度为2mm-590mm。
6.根据权利要求5所述的具有S构型增强结构的蜂窝芯体,其特征在于,所述S构型增强结构的厚度为柱体单胞壁厚的二倍。
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Citations (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1994003327A1 (en) * | 1992-08-03 | 1994-02-17 | Supracor Systems, Inc. | Perforated honeycomb |
CN202319086U (zh) * | 2011-01-23 | 2012-07-11 | 卢清友 | 一种连续管状复层芯纸结构 |
JP2014008735A (ja) * | 2012-07-02 | 2014-01-20 | Showa Aircraft Ind Co Ltd | 繊維強化プラスチック製ハニカムコアの製造方法 |
WO2014116139A1 (ru) * | 2013-01-23 | 2014-07-31 | Molokhina Larisa Arkadievna | Арматурный модуль |
JP2014156111A (ja) * | 2013-02-15 | 2014-08-28 | Tatsuzo Kawamura | ハニカム構造体 |
CN105128412A (zh) * | 2015-08-14 | 2015-12-09 | 大连理工大学 | 具有网格增强蜂窝芯体的夹芯结构 |
CN105882016A (zh) * | 2016-04-18 | 2016-08-24 | 重庆市皓邦工业有限公司 | 高强度轻量型芳纶纸蜂窝夹芯复合结构 |
CN106739292A (zh) * | 2017-01-13 | 2017-05-31 | 华侨大学 | 一种加强型蜂窝复合板 |
CN107867013A (zh) * | 2017-04-19 | 2018-04-03 | 中南林业科技大学 | 改进六边形结构的蜂窝芯板及其成型方法 |
CN109094139A (zh) * | 2018-08-08 | 2018-12-28 | 西北工业大学 | 一种新构型蜂窝夹层板 |
CN109591386A (zh) * | 2019-01-18 | 2019-04-09 | 中南林业科技大学 | 一种加强筋交错型蜂窝芯板及其制造方法 |
CN109863077A (zh) * | 2016-10-24 | 2019-06-07 | 本田技研工业株式会社 | 汽车用底板及汽车用底板的制造方法 |
CN114347585A (zh) * | 2021-12-29 | 2022-04-15 | 大连交通大学 | 一种局部致密蜂窝芯体的夹芯结构 |
-
2022
- 2022-08-22 CN CN202211002346.6A patent/CN115320183B/zh active Active
-
2023
- 2023-07-26 US US18/226,261 patent/US20240059044A1/en active Pending
Patent Citations (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1994003327A1 (en) * | 1992-08-03 | 1994-02-17 | Supracor Systems, Inc. | Perforated honeycomb |
CN202319086U (zh) * | 2011-01-23 | 2012-07-11 | 卢清友 | 一种连续管状复层芯纸结构 |
JP2014008735A (ja) * | 2012-07-02 | 2014-01-20 | Showa Aircraft Ind Co Ltd | 繊維強化プラスチック製ハニカムコアの製造方法 |
WO2014116139A1 (ru) * | 2013-01-23 | 2014-07-31 | Molokhina Larisa Arkadievna | Арматурный модуль |
JP2014156111A (ja) * | 2013-02-15 | 2014-08-28 | Tatsuzo Kawamura | ハニカム構造体 |
CN105128412A (zh) * | 2015-08-14 | 2015-12-09 | 大连理工大学 | 具有网格增强蜂窝芯体的夹芯结构 |
CN105882016A (zh) * | 2016-04-18 | 2016-08-24 | 重庆市皓邦工业有限公司 | 高强度轻量型芳纶纸蜂窝夹芯复合结构 |
CN109863077A (zh) * | 2016-10-24 | 2019-06-07 | 本田技研工业株式会社 | 汽车用底板及汽车用底板的制造方法 |
CN106739292A (zh) * | 2017-01-13 | 2017-05-31 | 华侨大学 | 一种加强型蜂窝复合板 |
CN107867013A (zh) * | 2017-04-19 | 2018-04-03 | 中南林业科技大学 | 改进六边形结构的蜂窝芯板及其成型方法 |
CN109094139A (zh) * | 2018-08-08 | 2018-12-28 | 西北工业大学 | 一种新构型蜂窝夹层板 |
CN109591386A (zh) * | 2019-01-18 | 2019-04-09 | 中南林业科技大学 | 一种加强筋交错型蜂窝芯板及其制造方法 |
CN114347585A (zh) * | 2021-12-29 | 2022-04-15 | 大连交通大学 | 一种局部致密蜂窝芯体的夹芯结构 |
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