毛蚶贝壳曲面承压力学特性及断裂机理
|
摘要
以毛蚶贝壳为研究对象,采用力学试验机对鲜体、浸泡体和干体不同含水状态下的毛蚶贝壳进行了曲面承压试验。通过贝壳承压力学试验数据和贝壳裂痕特征及微观结构进行毛蚶贝壳曲面的整体承压特性和破坏规律分析。结果表明,毛蚶贝壳在鲜体状态时曲面承压性能最好,浸泡体由于有机质流失其曲面承压性能下降,干体状态时曲面承压性能最差,且3种状态下贝壳的裂纹扩展和裂痕变化不同。本研究可为贝壳曲面力学性能研究和仿生应用研究提供重要的参考价值。
The clamshell was used as the research object, and three types of clamshells under different water conditions were carried out by mechanical testing machine, including of the fresh, soaked and dry shells.Based on the experimental data of bearing pressure and the crack characteristics and microstructure of shell, the whole bearing pressure characteristics and fracture law of clamshell surface were analyzed. The results showed that the pressure performance of the shell surface is the best in the fresh body. The mechanical properties in soaked bodies decreased because of the loss of the organic matter after the soaking.The compression capacity declined sharply when the shell was dry.The reason was that the water lost in the shell body and the organic matter dried up. the shell crack propagation and shell crack change were different in the three states. This study will provide important reference value for the study of mechanical properties and biomimetic application of shell surfaces.
The clamshell was used as the research object, and three types of clamshells under different water conditions were carried out by mechanical testing machine, including of the fresh, soaked and dry shells.Based on the experimental data of bearing pressure and the crack characteristics and microstructure of shell, the whole bearing pressure characteristics and fracture law of clamshell surface were analyzed. The results showed that the pressure performance of the shell surface is the best in the fresh body. The mechanical properties in soaked bodies decreased because of the loss of the organic matter after the soaking.The compression capacity declined sharply when the shell was dry.The reason was that the water lost in the shell body and the organic matter dried up. the shell crack propagation and shell crack change were different in the three states. This study will provide important reference value for the study of mechanical properties and biomimetic application of shell surfaces.
引文
[1]马云海,刘玉成,彭杰,等.环文蛤角质层与棱柱层结合特性研究[J].农业机械学报,2013,44(增刊1):297-300.Ma Yun-hai,Liu Yu-cheng,Peng Jie,et al.Binding characteristics of cuticle and prism Layer of cyclina sinensis[J].Transactions of the Chinese Society for Agricultural Machinery,2013,44(Sup.1):297-300.
[2]Bruet B J F,Qi H J,Boyce M C,et al.Nanoscale morphology and indentation of individual nacre tablets from the gastropod mollusc trochus niliticus[J].Journal of Materials Research,2005,20(9):2400-2419.
[3]Sun J Y,Bhushan B.Hierarchical structure and mechanical properties of nacre:a review[J].RSC Advances,2012,2(20):7617-7632.
[4]Tian X M,Han Z W,Li X J,et al.Biological coupling anti-wear properties of three typical molluscan shell-Scapharca subcrenata,Rapana venosa,Acanthochiton rubrolineatus[J].Science China Technological Science,2010,53(11):2905-2913.
[5]Xia S,Wang Z N,Chen H,et al.Nanoasperity:structure origin of nacre-inspired nanocom-posites[J].ACSNano,2015,9(2):2167-2172.
[6]Igor Zlotnikov,Vanessa Schoeppler.Thermodynamic aspects of molluscan shell ultrastructural morphogenesis[J].Advanced Functional Material,2017,27(28):1-14.
[7]Michio Suzuki,Hiromichi Nagasawa.Mollusk shell structures and their formation mechanism[J].Canadian Journal of Zoology-Revue Canadienne De Zoologie,2013,91(6):349-366.
[8]Mao L B,Gao H L,Yao H B,et al.Synthetic nacre by predesigned matrix-directed mineralization[J].Science,2016,354(6308):107-110.
[9]Cheng Q F,Jiang L,Tang Z Y.Bioinspired layered materials with superior mechanical performance[J].Accounts of Chemical Research,2014,47(4):1256-1266.
[10]Duan J L,Gong S S,Gao Y,et al.Bioinspired ternary artificial nacre nanocomposites based on reduced graphene oxide and nanofibrillar cellulose[J].ACS Applied Materials&Interfaces,2016,8(16):10545-10550.
[11]Jackson A P,Vincent J F V,Ihrner R M.The mechanical design of nacre[J].Proceedings of the Royal Society of London,1988,234(1277):415-440.
[12]Barthelat F,Tang H,Zavattieri P D,et al.On the mechanics of mother-of-pearl:A key feature in the material hierarchical structure[J].Journal of the Mechanics&Physics of Solids,2007,55(2):306-337.
[13]Barthelat F,Espinosa H D.Mechanical properties of nacre constituents:an inverse method approach in mechanical properties of bioinspired and biological materials[J].Materials Research Society Proceedings,2004,844:67-78.
[14]田喜梅.典型贝类壳体生物耦合特性及其仿生耐磨研究[D].长春:吉林大学生物与农业工程学院,2013.Tian Xi-mei.Biological coupling and bionic anti-wear properties of typical molluscan shells[D].Changchun:College of Biological and Agricultural Engineering,Jilin University,2013.
[15]Albert L,Marc A M.Growth and structure in abalone shell[J].Material Science and Engineering:A,2005,390(1/2):27-41.
[2]Bruet B J F,Qi H J,Boyce M C,et al.Nanoscale morphology and indentation of individual nacre tablets from the gastropod mollusc trochus niliticus[J].Journal of Materials Research,2005,20(9):2400-2419.
[3]Sun J Y,Bhushan B.Hierarchical structure and mechanical properties of nacre:a review[J].RSC Advances,2012,2(20):7617-7632.
[4]Tian X M,Han Z W,Li X J,et al.Biological coupling anti-wear properties of three typical molluscan shell-Scapharca subcrenata,Rapana venosa,Acanthochiton rubrolineatus[J].Science China Technological Science,2010,53(11):2905-2913.
[5]Xia S,Wang Z N,Chen H,et al.Nanoasperity:structure origin of nacre-inspired nanocom-posites[J].ACSNano,2015,9(2):2167-2172.
[6]Igor Zlotnikov,Vanessa Schoeppler.Thermodynamic aspects of molluscan shell ultrastructural morphogenesis[J].Advanced Functional Material,2017,27(28):1-14.
[7]Michio Suzuki,Hiromichi Nagasawa.Mollusk shell structures and their formation mechanism[J].Canadian Journal of Zoology-Revue Canadienne De Zoologie,2013,91(6):349-366.
[8]Mao L B,Gao H L,Yao H B,et al.Synthetic nacre by predesigned matrix-directed mineralization[J].Science,2016,354(6308):107-110.
[9]Cheng Q F,Jiang L,Tang Z Y.Bioinspired layered materials with superior mechanical performance[J].Accounts of Chemical Research,2014,47(4):1256-1266.
[10]Duan J L,Gong S S,Gao Y,et al.Bioinspired ternary artificial nacre nanocomposites based on reduced graphene oxide and nanofibrillar cellulose[J].ACS Applied Materials&Interfaces,2016,8(16):10545-10550.
[11]Jackson A P,Vincent J F V,Ihrner R M.The mechanical design of nacre[J].Proceedings of the Royal Society of London,1988,234(1277):415-440.
[12]Barthelat F,Tang H,Zavattieri P D,et al.On the mechanics of mother-of-pearl:A key feature in the material hierarchical structure[J].Journal of the Mechanics&Physics of Solids,2007,55(2):306-337.
[13]Barthelat F,Espinosa H D.Mechanical properties of nacre constituents:an inverse method approach in mechanical properties of bioinspired and biological materials[J].Materials Research Society Proceedings,2004,844:67-78.
[14]田喜梅.典型贝类壳体生物耦合特性及其仿生耐磨研究[D].长春:吉林大学生物与农业工程学院,2013.Tian Xi-mei.Biological coupling and bionic anti-wear properties of typical molluscan shells[D].Changchun:College of Biological and Agricultural Engineering,Jilin University,2013.
[15]Albert L,Marc A M.Growth and structure in abalone shell[J].Material Science and Engineering:A,2005,390(1/2):27-41.