The rationally topologized auxetic metamaterials exhibit a combination of high specific densification strength (0.0195 MPa kg −1 m −3 ), ultrahigh energy absorption capacity (6.29 MJ m −3 ), and excellent . three impact velocities, Vo = 22.5, 24.1 and 25.7 km/h (14, 15 and 16 mph), the dependence of HIC (d) on the stopping distance ST is plotted in Fig. The crashworthiness of a material is expressed in terms of its specific energy absorption, ES, and interlaminar fracture toughness, GIC, which are characteristic to that particular material. Changes in these parameters can cause subsequent changes in the spe-cific energy absorption of composite materials up to a . Synergistic Energy Absorption Mechanisms of Architected Liquid Crystal ... Keywords: vehicles impact; longerons crashworthiness; energy absorption; axial compression; buckling. The energy absorptio n occurs during plastic deformation of the structure. It is defined as: = (2) where m is the crushed mass of the structure. Therefore, use of the biomimetic approach for designing novel lightweight structures with excellent energy absorption capacity has been increasing in engineering fields in recent years. Simply select your manager software from the list below and click on download. Energy absorption performance has been a long-pursued research topic in designing desired materials and structures subject to external dynamic loading. thermoplastic The idea of sandwich structures for energy absorption applications is actually not a new concept. Energy Absorption of Structures and Materials - PDF Free Download PDF Sandwich Structures for Energy Absorption Applications: A Review Energy-absorption performance is an important mechanical property for energy-absorbing materials and structures. Energy-absorbing materials and structures When it comes to energy absorption in a dynamic load case, two general options are possible for structural design and structural performance. nature, bio-inspired structures have been proved to exhibit a significant improvement over conventional structures in energy absorption capacity. In this presentation, a comprehensive overview of re- cent advances in the development of bio-inspired structures for energy absorption applications at the Swinburne Univer- sity Technology, Australia is presented. Zhao et al. However, Primitive structures have highest compression performance and lowest energy absorption for its stretch‐dominated deformation mode. Thus, these materials may be less attractive as energy absorbers since this application requires a stress-strain response with a long, flat plateau [10].
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