Abstract: The method for measurement of thermal conductivity of a honeycomb structure according to the present invention comprises the steps keeping the whole honeycomb structure in a steady temperature state with keeping two ends of the honeycomb structure at given different temperatures; and measuring a thermal conductivity of the honeycomb structure in the steady state. According to the present invention there is provided a method for measurement of thermal conductivity of a honeycomb structure, which can measure the thermal conductivity of a honeycomb structure in the shape of the honeycomb structure per se or in a predetermined block shape without preparing, for example, a test specimen of particular shape.

Abstract: A method for analysis of a cell structure includes a macroanalysis step and a microanalysis step. The macroanalysis step includes replacing a cell structure or a part of the cell structure with an anisotropic solid body having property values of equivalent rigidity characteristics, creating a finite element model of the anisotropic solid body based on the property values, applying an internal temperature distribution or an external pressure to the finite element model of the anisotropic solid body, determining the stress distribution in the anisotropic solid body, and selecting an aimed cell structure of which the stress should be calculated as a cell structure based on the stress distribution. The microanalysis step includes creating a finite element model of the aimed cell structure, and determining the stress distribution in the aimed cell structure based on the finite element model of the aimed cell structure.

Abstract: A method for analysis of a cell structure includes an analysis step which includes replacing the cell structure or a part of the cell structure with an anisotropic solid body having property values of equivalent rigidity characteristics, creating a finite element model of the anisotropic solid body based on the property values, applying an internal temperature distribution or an external pressure to the finite element model of the anisotropic solid body, and calculating the stress to obtain a stress distribution in the anisotropic solid body. The structural analysis method is a means for analyzing the stress distribution in the cell structure due to the internal temperature distribution or external pressure which can be realized by using general-purpose computer software and hardware without performing a simulation test and making a large investment.

Abstract: A method for analysis of a cell structure includes a macroanalysis step and a microanalysis step. The macroanalysis step includes replacing a cell structure or a part of the cell structure with an anisotropic solid body having property values of equivalent rigidity characteristics, creating a finite element model of the anisotropic solid body based on the property values, applying an internal temperature distribution or an external pressure to the finite element model of the anisotropic solid body, determining the stress distribution in the anisotropic solid body, and selecting an aimed cell structure of which the stress should be calculated as a cell structure based on the stress distribution. The microanalysis step includes creating a finite element model of the aimed cell structure, and determining the stress distribution in the aimed cell structure based on the finite element model of the aimed cell structure.

Abstract: The method for measurement of thermal conductivity of a honeycomb structure according to the present invention comprises the steps keeping the whole honeycomb structure in a steady temperature state with keeping two ends of the honeycomb structure at given different temperatures; and measuring a thermal conductivity of the honeycomb structure in the steady state. According to the present invention there is provided a method for measurement of thermal conductivity of a honeycomb structure, which can measure the thermal conductivity of a honeycomb structure in the shape of the honeycomb structure per se or in a predetermined block shape without preparing, for example, a test specimen of particular shape.

Abstract: There is disclosed a honeycomb filter 1 having: an inflow end face 42 and an outflow end face 44 of a fluid to be treated; porous partition walls 2 extending to the outflow end face 44 from the inflow end face 42; and a large number of through channels 3a and 3b partitioned by the partition walls 2 and extending through the outflow end face 44 from the inflow end face 42, predetermined through channels 3a are sealed in the inflow end face, and the remaining predetermined through channels 3b are sealed in the outflow end face 44. In a case where a total of sectional areas of the through channels 3a sealed in the inflow end face 42 is A (mm2), and a total of sectional areas of the through channels sealed 3b in the outflow end face is B (mm2), a relation is A<B in the honeycomb filter 1. The honeycomb filter has only slight increase of a pressure loss with an elapse of time by the use.