Determination of energy dissipation of a spider silk structure under impulsive loading  

作　　者：Jorge ALENCASTRE Carlos MAGO Richard RIVERA 

机构地区：[1]1.Pontificia Universidad Católica del Perú, Lima, Perú

出　　处：《Frontiers of Mechanical Engineering》2015年第3期306-310,共5页机械工程前沿（英文版）

摘　　要：Various researches and studies have demonstrated that spider silk is much stronger and more deformable than a steel string of the same diameter from a mechanical approach. These excellent properties have caused many scientific disciplines to get involved, such as bio-mechanics, bio-materials and bio-mimetics, in order to create a material of similar properties and characteristics. It should be noted that the researches and studies have been oriented mainly as a quasi-static model. For this research, the analysis has taken a dynamic approach and determined the dissipation energy of a structure which is made of spider silk ＂Dragline＂ and produced by the Argiope- Argentata spider, through an analytical-experimental way, when being subjected to impulsive loading. Both experi- mental and analytical results, the latter obtained by using adjusted models, have given high levels of dissipation energy during the first cycle of vibration, which are consistent with the values suggested by other authors.Various researches and studies have demonstrated that spider silk is much stronger and more deformable than a steel string of the same diameter from a mechanical approach. These excellent properties have caused many scientific disciplines to get involved, such as bio-mechanics, bio-materials and bio-mimetics, in order to create a material of similar properties and characteristics. It should be noted that the researches and studies have been oriented mainly as a quasi-static model. For this research, the analysis has taken a dynamic approach and determined the dissipation energy of a structure which is made of spider silk ＂Dragline＂ and produced by the Argiope- Argentata spider, through an analytical-experimental way, when being subjected to impulsive loading. Both experi- mental and analytical results, the latter obtained by using adjusted models, have given high levels of dissipation energy during the first cycle of vibration, which are consistent with the values suggested by other authors.

关 键 词：dissipation energy IMPACT visco-elasticmaterial spider silk 

分 类 号：TU457[建筑科学—岩土工程] TS102.3[建筑科学—土工工程]