Results 41 to 50 of about 24,656 (242)
Bond modelling of prestressed concrete during the prestressing force release [PDF]
Materials and Structures, 2010 This paper presents an analytical model for simulating the bond between steel and concrete, in precast prestressed concrete elements, during the prestressing force release. The model establishes a relationship between bond stress, steel and concrete stress and slip in such concrete structures.
Benitez Baena, Jose Maria +1 more
openaire +3 more sources
Prestress Loss of CFL in a Prestressing Process for Strengthening RC Beams
International Journal of Polymer Science, 2017 A prestressing system was designed to strengthen reinforced concrete (RC) beams with prestressed carbon fiber laminate (CFL). During different prestressing processes, prestress loss was measured using strain gauges attached on the surface of CFL along ...
Xinyan Guo +3 more
doaj +1 more source
Defence Technology, 2016 Replica scaled impact experiments with unconfined ceramic targets have shown that the transition velocity, i.e., the impact velocity at which interface defeat ceases and ceramic penetration occurs, decreased as the length scale increased.
Patrik Lundberg +2 more
doaj +1 more source
Scientific ReportsRed clay as a special soil has a high liquid-plastic limit, water swelling and water loss shrinkage. To solve the problems red clay was modified by calcium carbonate produced in Hezhou, Guangxi.
Lijie Chen +5 more
doaj +1 more source
Applied Mechanics, 2022 Free vibration analysis of prestressed, homogenous, Fiber-Metal Laminated (FML) and composite beams subjected to axial force and end moment is revisited.
MirTahmaseb Kashani, Seyed M. Hashemi
doaj +1 more source
Prestress loss of prestressing tendons with asymmetrical layout parabolas [PDF]
Proceedings of the 5th International Conference on Civil Engineering and Transportation 2015, 2015 According to the equilibrium condition of geometry relationship, we derived the formulas that can be used to calculate the loss of prestress of prestressing tendons with the double-end tensioning and the asymmetrical arrangement parabolic curves.
Xiuxin Wang, Shanwen Zhang
openaire +1 more source
Advanced Materials, EarlyView.Residual magnetization induces pronounced mechanical anisotropy in ultra‐soft magnetorheological elastomers, shaping deformation and actuation even without external magnetic fields. This study introduces a computational‐experimental framework integrating magneto‐mechanical coupling into topology optimization for designing soft magnetic actuators with ...
Carlos Perez‐Garcia +3 more
wiley +1 more source
Collision‐Resilient Winged Drones Enabled by Tensegrity Structures
Advanced Robotics Research, EarlyView.Based on structures of birds such as the woodpeck, this article presents the collision‐resilient aerial robot, SWIFT. SWIFT leverages tensegrity structures in the fuselage and wings which allow it to undergo large deformations in a crash, without sustaining damage. Experiments show that SWIFT can reduce impact forces by 70% over conventional structures.
Omar Aloui +5 more
wiley +1 more source
Self-locking Kirigami surfaces via controlled stretching
Communications EngineeringKirigami provides a powerful strategy to transform two-dimensional elements into complex three-dimensional functional structures with lengths ranging from nanoscale to microscale and macroscale.
Qian Zhang +4 more
doaj +1 more source
State-of-the-art of mechanical properties of 3D printed concrete
Case Studies in Construction MaterialsThe utilization of 3D printing in civil engineering has expedited the progression of intelligent construction and building industrialization. A plethora of studies in recent years have contributed to the advancement of 3D printed concrete technology.
Jianguo Cai +5 more
doaj +1 more source