vessel element
1.Wood ray is Krib’s heterogeneousⅡA and ⅡB type,single ray height 682.1～778.4 μm,multiserate ray height 1 093 ～1 208 μm,multiserate ray width 63.6～92.6 μm,frequency of rays 9.2～12.8 mm-1. The anatomic characters of secondary xylem,such as multiserate ray width,frequency of rays,vessel element length,vessel diameter,etc.
2.By considering the contact between the teeth and utilizing the face to face contact model with contact element and coulomb friction model, the author had developed a method for design of tooth-locked quick actuating pressure vessel based on finite element stress analysis and stress categorization.
3.By considering the contact between the teeth and utilizing the face to face contact model with contact element and coulomb friction model, the author have developed a computing method for plastic load of tooth-locked quick actuating pressure vessel based on finite element stress analysis and stress categorization.
4.The purpose of this paper is to study 3D heat transfer characteristic and obtain 3D temperature field of tongue. By introducing the interdisciplinary science method and obtaining vessel model of porcine tongue through vessel cast experiment, 3D temperature field of tongue in allusion to real vessel shape was simulated by finite element method, which has great significance on both numerical heat transfer and bio-heat transfer.
5.In this paper a kind of cardio-cerebral arterial bifurcation vessel hemodynamic characteristics are studied with the boundary element method,and the blood flowing velocity vector distributions have been calculated.In addition,the flow field distribution and the pressure on the particle surface are also calculated,when there is flow-round particle at the place of bifurcation,the move tendency of the particle is judged,the possible reasons of causing the atherosclerosis,thrombus,angioma are analysed.
9.The principle of the calculation formulas of the ASME method was deduced. A significant difference was demonstrated by means of this two reinforcement design method that a pressure vessel with large opening was calculated. As a result, a new idea was put forward to the stress sorts for the large openings with finite element analysis.
10.By using nonlinear explicit dynamic finite-element program-ANSYS/LS-DYNA, which can deal with fluid-solid coupling algorithm, dynamical response of a cylindrical vessel (Length/Diameter=1) with flat end plate subjected to internal blast loading was numerically simulated.
