Zobrazeno 1 - 10
of 33
pro vyhledávání: '"Xuekun Sun"'
Autor:
Xuekun Sun1, Davidson, Barry D.1
Publikováno v:
International Journal of Fracture. Sep2005, Vol. 135 Issue 1-4, p51-72. 22p. 4 Diagrams, 4 Charts, 6 Graphs.
Publikováno v:
Journal of Reinforced Plastics and Composites. 28:1881-1901
Geometrically linear and nonlinear finite element analyses are used to determine the energy release rate and mode ratio in simulated tests of unidirectional, symmetric, single leg bending (SLB) specimens. It is shown that the finite diameter loading
Publikováno v:
Engineering Fracture Mechanics. 75:2130-2143
Geometrically linear and nonlinear finite element analyses are used to determine the energy release rate and mode ratio in simulated tests of unidirectional, symmetric, single leg bending specimens under four-point bending. It is shown that the finit
Publikováno v:
Journal of Composite Materials. 41:1177-1196
Three and four-point bend end-notched flexure tests, comprising a number of different test geometries, are performed on two different graphite/epoxy composites, and the toughnesses are obtained by a compliance calibration method of data reduction. Th
Autor:
Barry D. Davidson, Xuekun Sun
Publikováno v:
Engineering Fracture Mechanics. 73:1343-1361
Nonlinear finite element analyses are used to examine the effects of friction and geometric nonlinearities on the energy release rate in three- and four-point bend end-notched flexure tests. Energy release rates are first determined by a recently dev
Autor:
Barry D. Davidson, Xuekun Sun
Publikováno v:
Journal of Reinforced Plastics and Composites. 24:1611-1628
Linear and nonlinear finite element analyses are used to examine the effects of friction, test geometry, and fixture compliance on the perceived toughness as obtained from threeand four-point bend end-notched flexure tests. To this end, a newly devel
Autor:
Wenming Zhao, Xuekun Sun
Publikováno v:
Materials Science and Engineering: A. 390:366-371
Molecular-mechanics based finite element approach was used to predict the tensile stiffness and strength of single-walled carbon nanotubes. Different types of nanotubes, such as Arm-Chair, Zig-Zag, and chiral type, were discussed in detail. Nanotube
Autor:
Xuekun Sun, Changjie Sun
Publikováno v:
Composite Structures. 65:485-492
Recently developed digital element approach, which treats textile composite manufacturing process as a nonlinear solid mechanics problem, was successfully used to investigate the complicated microstructure of 3D braided rectangular preform. The yarns
Autor:
Xuekun Sun
Publikováno v:
Journal of Composite Materials. 38:791-798
The micro-geometry of three-dimensional (3-D) braided tubular preform is more complex than that of rectangular one, and it is more difficult to analyze its architecture and mechanical properties theoretically as well. Through the advantage of digital
Publikováno v:
Composites Science and Technology. 64:239-244
The concept of multi-chain digital element analysis is established. This new approach is a general numerical tool for textile mechanics. It can be used for textile process design and for fabric deformation, strength and failure analyses. In multi-cha