Three dimensional, flexural-torsional dynamic buckling of long wires after tensile fracture and implications on deep water riser dynamics
作者: Marcelo ParedesTomasz WierzbickiChristian C. Roth
作者单位: 1Impact of Crashworthiness Lab, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Room 5-218, Cambridge, MA 02139, USA
2Laboratory of Solid Mechanics, Ecole Polytechnique, Route de Saclay, 91128 Palaiseau, France
刊名: International Journal of Impact Engineering, 2015, Vol.86 , pp.27-39
来源数据库: Elsevier Journal
DOI: 10.1016/j.ijimpeng.2015.07.004
关键词: Dynamic pulse bucklingUnloading wave propagationPost-fracture wire behaviorSnap loads
英文摘要: Abstract(#br)When a long slender structure such as a wire, strut or rope is loaded under tension all the way to fracture, upon failure an elastic unloading wave propagates down the wire and reflects as a compressive wave from the distant clamp end. The compressive effect of dynamic pulse buckling, amplitude and wave length depend on material properties and geometry features of the problem. Small scale experiments were performed on thin stainless steel wires of 0.127 mm diameter and varying lengths. The theory of dynamic pulse buckling, developed in the 1980s at the Stanford Research Institute, is used to study the initial phase of the deformation of the wire. In order to obtain a deeper insight in the mechanism of structural collapse, numerical simulations and high speed photography on...
全文获取路径: Elsevier  (合作)
影响因子:1.681 (2012)