探索了一种新型竹质工程构件——瓦楞型竹束单板复合材料(CBLC)的制备工艺,研究了三种典型铺装类型(Ⅰ型:(0°)6；Ⅱ型:(0°/90°)3；Ⅲ型:(90°)6)对其拉伸、双向弯曲、三维压缩性能的影响,同时利用数字散斑相关方法(DSCM)对其弯曲应变场信息进行了表征.结果表明:铺装类型对各项力学性能有明显影响,对于拉伸、纵向弯曲性能,Ⅰ型＞Ⅱ型＞Ⅲ型,对于横向弯曲,Ⅱ型＞Ⅲ型＞Ⅰ型.不同铺装类型下CBLC的拉伸断裂机制亦各不相同:Ⅰ型为延性断裂,Ⅱ型为逐渐分层断裂,Ⅲ型为脆性断裂.x和y方向应变场集中分布在试样底端最外层瓦楞波形连接处,且Exx＜Eyy.多重比较分析表明:抗压缩性能在三维方向上存在明显差异,且y＞x＞z；铺装类型对CBLC的抗压载荷、抗压强度有很大影响,而抗压模量差异不明显.
参考文献
| [1] | Sahroni F F,Hidayat W,Bakar E S,et al.Properties of oriented strand board made from Betung bamboo (Dendrocalamus asper (Schulter.f) Backer ex Heyne)[J].Wood Sci Technol,2012,46:53-62. |
| [2] | Yao W,Li Z.Flexural behavior of bamboo fiber rein for mortar laminates[J].Cement and Concrete Research,2003,33:15-19. |
| [3] | Wang G,Chen F M,Cheng H T,et al.Mechanical properties of ramie fiber woven composites[J].Advanced Materials Research,2011,331:65-68. |
| [4] | 王戈,陈复明,程海涛,等.含孔天然纤维织物复合材料力学性能[J].复合材料学报,2010,27(4):195-199.Wang Ge,Chen Fuming,Cheng Haitao,et al.Mechanical Properties of nature fiber textiles laminate with hole[J].Acta Materiae Compositae Sinica,2010,27(4):195-199. |
| [5] | Guo Y,Wang X,Zhang Q.Design Methods and experimental study on the stability behavior of trapered beam-columns with sinusoidal corrugated web[J].Engineering Mechanics,2010,27(9):139-146. |
| [6] | Guo Y,Wang X,Zhang Q,et al.Design theory and application of steel structures of light-weight buildings[J].Building Structure,2010,41(4):11-19. |
| [7] | Tomohiro Y,Shinichi T,Toshio O,etal.Mechanical properties of corrugated composites for candidate materials of flexible wing structures[J].Composites:Part A,2006,37:1578-1586. |
| [8] | Thorpe J L,Choi D.Corrugated container failure:Part 2-Strain measurements laboratory compression tests[J].TappiJournal,1992,7:155-161. |
| [9] | 陶积柏,王壁凯,李敏,等.三维夹芯层连续织物复合材料真空辅助成型工艺影响因素[J].复合材料学报,2010,27(4):81-86.Tao Jibai,Wang Shaokai,Li Min,et al.Influence factors of vacuum assisted resin transfer molding process for 3D spacer fabric composites[J].Acta Materiae Compositae Sinica,2010,27(4):81-86. |
| [10] | Duong V H,Yusuke N,Fumihiko T,Daisuke H.Preserving the strength of corrugated cardboard under high humidity condition using nano-sized mists[J].Composites Science and Technology,2010,70:2123-2127. |
| [11] | Briassoulis D.Equivalent orthotropic properties of corrugated sheets[J].Comput Struct,1986,23(2):129-138. |
| [12] | Wang G,Chen F M,Cheng H T,et al.Mechanical properties of natural fiber textiles laminate with hole[J].Acta Materiae Compositae Sinica,2010,27(4):195-199. |
| [13] | Chen F M,Wang G,Jiang Z H,et al.A novel 3-D testing system for the mechanical properties of fiber[J].Advanced Materials Research,2011,332 334:1206-1209. |
| [14] | Jiang Z H,Chen F M,Wang G,et al.Bamboo bundle corrugated laminated composites (BCLC):Part Ⅱ-Damgage analysis under low velocity impact loading[J].Bioresources,2013,8(1):923-932. |
| [15] | Chen F M,Jiang Z H,Wang G,etal.Bamboo bundle corrugated laminated composites (BCLC):Part Ⅰ-Three-dimensional stability in response to corrugating effect[J].The Journal of Adhesion,2013,89:225-238. |
| [16] | 全国水泥制品标准化技术委员会.GB/T 7019-1997纤维水泥制品试验方法[S].北京:中国标准出版社,1997.National Technical Committee on cement-based Products of Standardization Administration of China.GB/T 7019-1997Test methods for fiber reinforced cement products[S].Beijing:Standards Press of China,1997. |
| [17] | 全国人造板标准化技术委员会.GB/T 17657-1999人造板及饰面人造板理化性能试验方法[S].北京:中国标准出版社,1999.National Technical Committee on Wood-based Panels of Standardization Administration of China.GB/T 17657-1999Test methods of evaluating the properties of wood-based panels and surface decorated wood-based panels[S].Beiiing:Standards Press of China,1999. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%