A deformable auxetic structure for absorbing energy of an impact that comprises a plurality of interconnected adjoining tridimensional auxetic cells where each tridimensional auxetic cell comprises at least one surface element and a plurality of legs extending from the surface, the plurality of legs and the surface element being configured such that the sectional cut of the structure in at least two planes perpendicular to the surface element follows an auxetic pattern.

A fuel cell separator includes a separator main body having a first surface and a second surface, and a first seal member disposed on the first surface. When a region on the first surface of the separator main body corresponding to an electrode member disposed on the second surface is defined as a power generation region, and a region on the first surface of the separator main body corresponding to an in-cell seal member is defined as a seal region, a displacement/vibration reducing member made of polymer is disposed at a part of the seal region. The displacement/vibration reducing member includes multiple protrusions and a coupling portion. When viewed in plan view, an axis line connecting the centers of the figures of the adjacent protrusions does not coincide with a center line passing through the widthwise center of the coupling portion. The coupling portion has a gate cut mark.

An apparatus, according to an exemplary aspect of the present disclosure includes, among other things, a body-in-white member having an inboard side and an outboard side, a reinforcing structure molded on the inboard side, and an energy absorbing structure molded on the outboard side. A method according to an exemplary aspect of the present disclosure includes, among other things, providing a body-in-white member having an inboard side and an outboard side, molding a reinforcing structure on the inboard side, and molding an energy absorbing structure on the outboard side.

A method for manufacturing a case for a mobile device with a screen, in which the case has a band arranged to surround the edge of the device, includes supplying a band having a layer of flexible polymer; and in either an insert molding process or in a dual injection process, applying damping material on the layer of the flexible polymer of the band. The damping material has a plurality of integrally formed protrusions projecting inwardly from a substantial portion of the inner periphery of the band to engage with the device. The protrusions are arranged such that, in use there is substantially no contact between the band and the device other than through the protrusion. Further, the protrusions are provided at least in the corner regions of the case.

Some embodiments are directed to a three-dimensional (3D) preform including reinforcing fibres and shape memory alloys (SMA) wires and a composite material including a polymer matrix with a 3D-preform embedded therein, wherein the 3D-preform includes reinforcing fibres and shape memory alloy (SMA) wires.

A fiber composite material and a manufacturing method thereof are provided. The fiber composite material includes: a fiber prepreg layer including a first resin and fibers impregnated with the first resin; and a plurality of strip-shaped composite resin layers including multi-layered carbon nanotubes and a second resin disposed on the fiber prepreg layer, wherein the plurality of the strip-shaped composite resin layers and the fiber prepreg layer together form a hollow tubular body, and a length direction of the plurality of strip-shaped composite resin layer is at an angle of from 0 degree and less than 90 degrees with respect to an extending direction of the fiber prepreg layer.

A method of manufacturing an energy-absorbing structure according to various aspects of the present disclosure via a two-step molding process includes molding first and second portion precursors including thermoset polymers (e.g., thermoset polymer composites) to a first degree of cure (DOC) less than one so that the portion precursors are in a gelled glass state. The method further includes joining the first and second portion precursors by applying heat and pressure in a joining region such that the thermoset polymers have a second DOC greater than the first DOC and are cross-linked in the joining region. The energy-absorbing component therefore has a unitary structure. The method may further include coupling the energy-absorbing structure to a housing. In certain aspects, energy-absorbing structures may have tailored stiffness and/or tailored crush initiation.

The present invention is to provide a bound stopper, which has high mechanical strength, is excellent in durability against fatigue breaking, settling or the like when a heavy load is repeatedly received, and is easy to be produced, in which the bound stopper comprises a polyurethane foam obtained from a polyurethane foam composition containing an isocyanate component and a blowing agent, and the isocyanate component contains a urethane prepolymer having an isocyanate group, the urethane prepolymer being obtained from a polyol component, a polyrotaxane containing a cyclic molecule having an active hydrogen group as a constituent, and an isocyanate.

An apparatus (100) for generating three dimensional objects comprises a first scanning carriage (102). The first scanning carriage comprises a first energy source (104) to pre-heat an area of a build surface as the first scanning carriage (102) moves over the build surface.

A shoe includes a sole structure that defines a first supporting structure, a second supporting structure, and a third supporting structure, the first supporting structure being disposed within a forefoot region, the second supporting structure being disposed within a midfoot region, and the third supporting structure being disposed within a heel region. Each of the first supporting structure, the second supporting structure, and the third supporting structure define at least one curved surface, against which a plurality of plastic bodies are disposed. The plurality of plastic bodies comprise foamed plastic, define spheres or ellipsoids, are between 1 mm and 13 mm in the three spatial directions, and are arranged loosely within the sole structure without connection to one another. The plurality of plastic bodies are compressed against the first supporting structure, the second supporting structure, and the third supporting structure.