Described herein are details for designing and manufacturing enhanced shock and impact resistant helicoidal lay-ups by combining nanomaterials, variable pitch and partial spirals, Thin unidirectional fiber plies, hybrid materials, and/or curved fibers within a ply. The helicoidal structures created in the prescribed manners can be tuned and pitched to desired wavelengths to dampen propagating shock waves initiated by ballistics, strike forces or foreign material impacts and can arrest the propagation of fractures including catastrophic fractures. These enhancements open the helicoidal technology up for use in such applications as consumer products, protective armor, sporting equipment, crash protection devices, wind turbine blades, cryogenic tanks, pressure vessels, battery casings, automotive/aerospace components, construction materials, and other composite products.

Described herein is an acoustic structural panel having a first exposed major surface opposite a second exposed major surface and side surfaces extending between the first and second exposed major surfaces, the acoustic structural panel comprising a first protective layer comprising at least a portion of the first exposed major surface, a second protective layer comprising at least a portion of the second exposed surface, a core structure located between the first and second protective layers, the core structure comprising, a foam body; and a fibrous body, wherein the first major exposed surface of the acoustic structural panel comprises a plurality of apertures exposing the fibrous body.

The present disclosure generally relates to adhesive compositions and articles including at least one of polydiorganosiloxane polyoxamide copolymer, silicone polyurea block copolymer, and/or an addition cure silicone, a silicate tackifying resin, and inorganic particle filler. The filler is typically fumed silica. Some embodiments of the adhesive composition include at least one of a polydiorganosiloxane polyoxamide copolymer, a silicate tackifying resin in an amount of between about 10 wt % and about 70 wt %, and inorganic particle filler in between about 0.1 wt % and about 20 wt %; a silicone polyurea block copolymer, a silicate tackifying resin in an amount of between about 10 wt % and about 70 wt %, and inorganic particle filler in an amount between about 0.1 wt % and about 20 wt %; and an addition cure silicone, a silicate tackifying resin in an amount of between about 10 wt % and about 70 wt %, and inorganic particle filler in an amount between about 0.1 wt % and about 20 wt %.

An aircraft wing (6) is provided. The aircraft wing (6) comprises at least one structure (62), (64), 66 comprising: a foam core (626), (666); first and second carbon fibre composite layers (624a), (622a), (662a), (664a) respectively attached to top and bottom sides of the foam core to sandwich the foam core; and third and fourth carbon fibre composite layers (624b), (622b), (662b), (664b) respectively disposed adjacent to the first and second carbon fibre composite layers, wherein the total thickness of the structure is between 1 mm and 11 mm. An aircraft having the aircraft wing and a method of manufacturing a structure are also provided.

The present invention relates to panel, in particular a floor panel, a wall panel, or a ceiling panel, comprising a core layer, comprising a mineral or a cementitious material and at least one reinforcing layer situated in said core layer; wherein the panel, in particular the core layer, comprises a first pair of opposite edges, wherein a first edge of said first pair of opposing edges comprises a first coupling part, and wherein a second edge of said first pair of opposing edges comprises a complementary second coupling part, said coupling parts allowing a plurality of panels to be mutually coupled, wherein the first coupling part comprises a sideward tongue extending in a direction substantially parallel to a plane defined by the panel, and wherein the second coupling part comprises a groove configured for accommodating at least a part of the sideward tongue of another panel, said groove being defined by an upper lip and a lower lip.

An acoustical ceiling panel including a first layer having a first major surface opposite a second major surface and a side surface extending therebetween, a second layer having a first major surface opposite a second major surface and a side surface extending therebetween, and a sealing layer having a first major surface opposite a second major surface and a side surface extending therebetween. The sealing layer may be positioned between the first major surface of the first layer and the second major surface of the second layer. The side surface of the sealing layer may extend beyond the side surface of the first layer and the side surface of the second layer.

A barrier system for partitioning a space is formed by panels which interlock with each other to provide a barrier that is fire rated. The interlocking panels are assembled in the barrier in columns which include at least two panels. A first horizontal joint between two panels of the barrier in a first column is vertically offset from a horizontal joint between two panels of the barrier in a second column that is adjacent to the first column at a vertical joint. Each panel is made of a laminated structure including a supporting frame around a core layer, barrier layers on opposed surfaces of the core and skin layers on the barrier layers. Tongue and groove construction interlocks the panels and a locking structure formed by a tapered hook in the groove engaging into a slot of the tongue locks horizontally adjacent panels to each other.

A gypsum tile backer panel with a pre-impregnated or pre-coated nonwoven fiber face mat. Methods for manufacturing these gypsum tile backer panel which include applying a gypsum slurry to a pre-impregnated or pre-coated nonwoven fiber face mat are also provided. A gypsum tile backer panel system employing the gypsum tile backer panel is also provided.

An enclosure component having a thickness for a building structure having an interior sheathing layer comprising paper; a first structural layer bonded to the interior sheathing layer and comprising a first generally rectangular structural panel of magnesium oxide arranged in a side-by-side relationship with a second generally rectangular structural panel of magnesium oxide to define a first structural panel seam between the first and second structural panels. There is a first binding strip of magnesium oxide positioned over the first structural panel seam and fastened to form a lap joint with the first structural panel and with the second structural panel, so as to bond together the first and second structural panes. The enclosure component includes a first strengthening layer, comprising woven fiber mat, bonded to the first structural layer; and a foam layer with first and second opposing faces comprising a first generally rectangular foam panel and a second generally rectangular foam panel arranged in a side-by-side relationship to define a foam panel seam between the first and second foam panels. The first structural panel seam is offset from the foam panel seam a select distance in a direction generally perpendicular to the thickness. The first strengthening layer is bonded to the first opposing face of the foam layer. The enclosure component also has a second structural layer comprising a third generally rectangular structural panel of magnesium oxide arranged in a side-by-side relationship with a fourth generally rectangular structural panel of magnesium oxide to define a second structural panel seam between the third and fourth structural panels. There is a second binding strip of magnesium oxide positioned over the second structural panel seam and fastened to form a lap joint with the third structural panel and with the fourth structural panel, so as to bond together the third and fourth structural panels. The second structural panel seam is offset from the foam panel seam a select distance in a direction generally perpendicular to the thickness; and the second structural layer is bonded to the second opposing face of the foam layer.

An enclosure component having a thickness for a building structure having an interior sheathing layer comprising paper; a first structural layer bonded to the interior sheathing layer and comprising a first generally rectangular structural panel of magnesium oxide arranged in a side-by-side relationship with a second generally rectangular structural panel of magnesium oxide to define a first structural panel seam between the first and second structural panels. There is a first binding strip of magnesium oxide positioned over the first structural panel seam and fastened to form a lap joint with the first structural panel and with the second structural panel, so as to bond together the first and second structural panes. The enclosure component includes a first strengthening layer, comprising woven fiber mat, bonded to the first structural layer; and a foam layer with first and second opposing faces comprising a first generally rectangular foam panel and a second generally rectangular foam panel arranged in a side-by-side relationship to define a foam panel seam between the first and second foam panels. The first structural panel seam is offset from the foam panel seam a select distance in a direction generally perpendicular to the thickness. The first strengthening layer is bonded to the first opposing face of the foam layer. The enclosure component also has a second structural layer comprising a third generally rectangular structural panel of magnesium oxide arranged in a side-by-side relationship with a fourth generally rectangular structural panel of magnesium oxide to define a second structural panel seam between the third and fourth structural panels. There is a second binding strip of magnesium oxide positioned over the second structural panel seam and fastened to form a lap joint with the third structural panel and with the fourth structural panel, so as to bond together the third and fourth structural panels. The second structural panel seam is offset from the foam panel seam a select distance in a direction generally perpendicular to the thickness; and the second structural layer is bonded to the second opposing face of the foam layer.