Abstract: A lateral surface member structure (100) of a vehicle body (1) includes a tubular body (110) extending in a front-rear direction of the vehicle body (1) and an impact absorbing member (120) disposed inside the tubular body (110). The impact absorbing member (120) includes a web (121) extending along the front-rear direction and flat in a vehicle width direction, a vehicle outer flange (122) joined to a vehicle outer end portion of the web (121) and extending along the front-rear direction, and a vehicle inner flange (123) joined to a vehicle inner end portion of the web (121) and extending along the front-rear direction. The vehicle outer flange (122) and the vehicle inner flange (123) each include a rib (122R, 123R) disposed so as to sandwich the web (121) from above and below and extending along the front-rear direction.

Abstract: In a deformation simulation of a member joined by spot welding, an effective width being a width in a direction intersecting a direction of a load centered on a spot welded portion (14) on a flange face (13a) where the spot welded portion (14) is provided of a member (10) and changing correspondingly to a change in the load is calculated every predetermined time interval, and fracture of the spot welded portion (14) is predicted using the calculated effective width. This configuration enables precise fracture prediction of a spot welded portion where spot welding is modeled, for example, in a case of performing collision deformation prediction of an automobile member on a computer.

Abstract: Disclosed is a method for producing a fine powder. Two or more kinds of original materials are suspended and liquefied inert gas to form two or more kinds of slurries wherein each slurry contains at least one or more different kinds of original materials. Granular dry ice grinding medium is put into the slurries. The slurries are individually stirred and the original materials are pulverized into submicron-sized or nano-sized particles in the liquefied inert gas. The slurries are thereafter mixed. The liquefied inert gas is vaporized and the granular dry ice is sublimated. A mixture of the particles of the two or more kinds of original materials is recovered.

Abstract: A blank shape determining method includes: a process of making a forming analysis of forming a reference blank into a reference formed product and a acquiring sheet thickness distribution and a plastic strain distribution; a process of acquiring a forming failure evaluation index for the reference blank; a process of estimating a region, which includes an end edge portion at which the forming failure evaluation index exceeds a predetermined threshold, within the reference blank as a forming failure region; a process of generating a plurality of corrected blanks; a process of making a forming analysis of forming the corrected blanks into corrected formed products and acquiring a sheet thickness distribution and a plastic strain distribution; a process of acquiring the forming failure evaluation index for the corrected formed product; and a process of determining a shape of the corrected blank having a smallest maximum value of the forming failure evaluation index as a shape of a blank provided for press formin

Abstract: The deformation analysis device includes: a storage unit (12) which stores analysis data of a material; a state variable calculating unit (152) which calculates stresses and other state variables of respective elements of the material at each point in time of deformation of the material, based on the analysis data; a fracture determining unit (153) which, based on the calculated state variables, determines whether or not a fracture has occurred in each of the elements of the material, based on a fracture limit stress curve which is found in advance for the material; and a stress correcting unit (154) which, regarding an element in which it is determined that the fracture has occurred, out of the elements of the material, reduces ? by the following expression ?=(1?D)?? where ? is a stress with a rigidity decrease taken into consideration, D is a damage variable (note that 0?D?1) in continuum damage mechanics, and ?? is a stress with the rigidity decrease not taken into consideration, to thereby decrease rigidi

Abstract: An analyzing apparatus generates first displacement distribution data indicating a displacement distribution of a member caused by springback based on finite element model data, material physical property data, and stress distribution data; generates second displacement distribution data indicating an amount of displacement of the member in each of a plurality of, for example, all, natural vibration deformation modes based on the finite element model data and the material physical property data; obtains a degree of coincidence between the first displacement distribution data and each of the second displacement distribution data, and selects one or more natural vibration deformation modes based on the degree of coincidence, to determine a modified shape in which natural vibrations are increased, thereby bringing the member closer to a target shape.

Abstract: In a deformation simulation of a member joined by spot welding, an effective width being a width in a direction intersecting a direction of a load centered on a spot welded portion (14) on a flange face (13a) where the spot welded portion (14) is provided of a member (10) and changing correspondingly to a change in the load is calculated every predetermined time interval, and fracture of the spot welded portion (14) is predicted using the calculated effective width. This configuration enables precise fracture prediction of a spot welded portion where spot welding is modeled, for example, in a case of performing collision deformation prediction of an automobile member on a computer.

Abstract: An apparatus for identification of a cause of occurrence of springback having a press forming analyzer for numerically analyzing forming conditions of press forming to obtain forming data of a press formed part, a springback analyzer for numerically analyzing said forming data to calculate a springback value, and a processor for processing at least one of a physical property value and physical property quantity data of part of the regions of said press formed part among forming data of said press formed part and making said springback analyzer calculate the springback value based on the results of said processing.

Abstract: A blank shape determining method includes: a process of making a forming analysis of forming a reference blank into a reference formed product and a acquiring sheet thickness distribution and a plastic strain distribution; a process of acquiring a forming failure evaluation index for the reference blank; a process of estimating a region, which includes an end edge portion at which the forming failure evaluation index exceeds a predetermined threshold, within the reference blank as a forming failure region; a process of generating a plurality of corrected blanks; a process of making a forming analysis of forming the corrected blanks into corrected formed products and acquiring a sheet thickness distribution and a plastic strain distribution; a process of acquiring the forming failure evaluation index for the corrected formed product; and a process of determining a shape of the corrected blank having a smallest maximum value of the forming failure evaluation index as a shape of a blank provided for press formin

Abstract: A bending fracture limit stress is calculated for each of (bend radius at sheet thickness center of a metal sheet)/(initial sheet thickness of the metal sheet); a fracture limit curve and a fracture limit stress are calculated from work hardening characteristics; a fracture limit curve corresponding to (the metal sheet bend radius at sheet thickness center)/(the initial sheet thickness of the metal sheet) is calculated; a corresponding fracture limit stress is calculated from stress of the element subject to determination and the fracture limit curve; a risk ratio that is a ratio between the stress of the element subject to determination and the fracture limit stress is computed; and performing fracture determination for the element subject to determination based on the risk ratio.

Abstract: An analyzing method of a spot welded portion, includes: acquiring bar elements as the spot welded portion; extracting other bar elements existing at a periphery of a target bar element which is targeted among the acquired bar elements; determining whether or not there is a bar element which shares the same end point with the target bar element among the extracted bar elements; determining that the target bar element and the bar element which shares the same end point with the target bar element are a three-layer spot welded portion when it is determined that there is the bar element which shares the same end point with the target bar element; and determining whether or not there is a bar element whose distance between elements with the target bar element is within a predetermined distance among the extracted bar elements when it is determined that there is not the bar element which shares the same end point with the target bar element, and determining that the target bar element and the extracted bar element

Abstract: A method of identification of a cause of occurrence of springback comprising a press forming analysis step of numerically analyzing forming conditions of press forming to obtain forming data of a press formed part, a processing step of processing at least one of a physical property value and physical property quantity data of part of the regions of said press formed part among forming data of said press formed part, and a springback value calculation step of calculating a springback value based on the results of said processing.

Abstract: A method for producing starch granules suitable as an excipient for an orally disintegrating tablet. Fluidized bed granulation is performed by spraying a starch paste in small amounts while a ?-starch is being fluidized using an air-fluidized bed. Subsequently, fluidized bed drying is performed at a temperature equal to or higher than the gelatinization temperature of the ?-starch. This yields starch granules having a high degree of gelatinization in comparison with the amount of ?-starch adhered to the ?-starch by the spraying of the starch paste. These starch granules alone impart satisfactory oral disintegratability and breaking strength to the tablet. Accordingly, when used as an excipient during tableting of orally disintegrating tablets, other auxiliary excipients such as saccharides or crystalline cellulose need not be added.

Abstract: A bending fracture limit stress is calculated for each of (bend radius at sheet thickness center of a metal sheet)/(initial sheet thickness of the metal sheet); a fracture limit curve and a fracture limit stress are calculated from work hardening characteristics; a fracture limit curve corresponding to (the metal sheet bend radius at sheet thickness center)/(the initial sheet thickness of the metal sheet) is calculated; a corresponding fracture limit stress is calculated from stress of the element subject to determination and the fracture limit curve; a risk ratio that is a ratio between the stress of the element subject to determination and the fracture limit stress is computed; and performing fracture determination for the element subject to determination based on the risk ratio.

Abstract: A front vehicle body structure for a vehicle body (1) having a vehicle interior compartment (2) and a front compartment (3) which is provided in front of the vehicle interior compartment (2). The front vehicle body structure is provided with: strut towers (16) to which the upper edges of struts for the front wheels are mounted; front pillars (20) extending, at positions at the front of the vehicle interior compartment and on both sides in the width direction, from the roof of the vehicle interior compartment toward the upper edge of the rear of the front compartment; and reinforcement members (25, 70) each having one end joined to the strut tower and the other end joined to the front pillar. Each of the reinforcement members is joined to the strut tower on both the inner side and outer side of a plane (S) with respect to the vehicle body, the plane (S) passing through the axis of the strut and extending in the front-rear direction of the vehicle body.

Abstract: An analyzing method of a spot welded portion, includes: acquiring bar elements as the spot welded portion; extracting other bar elements existing at a periphery of a target bar element which is targeted among the acquired bar elements; determining whether or not there is a bar element which shares the same end point with the target bar element among the extracted bar elements; determining that the target bar element and the bar element which shares the same end point with the target bar element are a three-layer spot welded portion when it is determined that there is the bar element which shares the same end point with the target bar element; and determining whether or not there is a bar element whose distance between elements with the target bar element is within a predetermined distance among the extracted bar elements when it is determined that there is not the bar element which shares the same end point with the target bar element, and determining that the target bar element and the extracted bar element

Abstract: The deformation analysis device includes: a storage unit (12) which stores analysis data of a material; a state variable calculating unit (152) which calculates stresses and other state variables of respective elements of the material at each point in time of deformation of the material, based on the analysis data; a fracture determining unit (153) which, based on the calculated state variables, determines whether or not a fracture has occurred in each of the elements of the material, based on a fracture limit stress curve which is found in advance for the material; and a stress correcting unit (154) which, regarding an element in which it is determined that the fracture has occurred, out of the elements of the material, reduces ? by the following expression ?=(1?D)?? where ? is a stress with a rigidity decrease taken into consideration, D is a damage variable (note that 0?D?1) in continuum damage mechanics, and ?? is a stress with the rigidity decrease not taken into consideration, to thereby decrease rigidi

Abstract: Disclosed is a method for producing a fine powder. Two or more kinds of original materials are suspended and liquefied inert gas to form two or more kinds of slurries wherein each slurry contains at least one or more different kinds of original materials. Granular dry ice grinding medium is put into the slurries. The slurries are individually stirred and the original materials are pulverized into submicron-sized or nano-sized particles in the liquefied inert gas. The slurries are thereafter mixed. The liquefied inert gas is vaporized and the granular dry ice is sublimated. A mixture of the particles of the two or more kinds of original materials is recovered.

Abstract: Disclosed is a manufacturing method for a fine powder exhibiting improved solubility, little impurity contamination, and a high recovery rate. Material to be ground and a grinding medium are suspended and stirred in a liquefied inert gas dispersion medium such as dried ice, and the material to be ground is made into a sub-micron or nano-sized fine powder. A uniform fine powder can be obtained when the material to be ground is a mixture having two or more components. Impurity contamination can be reduced by using granular dry ice as the grinding medium.

Abstract: A method for producing starch granules suitable as an excipient for an orally disintegrating tablet. Fluidized bed granulation is performed by spraying a starch paste in small amounts while a ?-starch is being fluidized using an air-fluidized bed. Subsequently, fluidized bed drying is performed at a temperature equal to or higher than the gelatinization temperature of the ?-starch. This yields starch granules having a high degree of gelatinization in comparison with the amount of ?-starch adhered to the ?-starch by the spraying of the starch paste. These starch granules alone impart satisfactory oral disintegratability and breaking strength to the tablet. Accordingly, when used as an excipient during tableting of orally disintegrating tablets, other auxiliary excipients such as saccharides or crystalline cellulose need not be added.