Tensile properties of fibre-reinforced metals: Copper/tungsten and copper/molybdenum

Influence of substrate additives on the mechanical properties of ultrathin oxide coatings on poly(ethylene terephthalate)

“…For thin coatings, these two factors are usually derived from a linear approximation of the initial part of the fragmentation diagram, where the evolution of the average fragment size is reported as a function of applied strain, in logarithmic coordinates [20]. The advanced stage of the fragmentation process, when fragment size reaches a saturation regime controlled by interfacial stress transfer was analyzed following the perfectly plastic Kelly -Tyson model [21]. In spite of its simplicity, such treatment is quite robust, essentially because of the high elastic contrast between the oxide and the polymer [22].…”

Effect of Spark Plasma Sintering in Fabricating Carbon Nanotube Reinforced Aluminum Matrix Composite Materials

“…According to our previous report that used nanoindentation for work hardening, there was no change in the hardness of Al particles before and after the extrusion process ). It is suggested that the stress accumulation was lower than stress released during the extrusion process by dynamic recrystallization (Knocks, 2004; Kelly & Tyson, 1965;Cox, 1952;Serajzadeh, 2004). Therefore, the enhanced tensile strength of the composites with a small amount of CNT (1 and 5 vol%) is mainly due to the addition of CNT itself.…”

“…4 and 6). It is believed that this chemically bonded structure is useful for stress transfer (Knocks, 2004;Kelly & Tyson, 1965;Lourie & Wagner, 1999;Fukuda & Chou, 1982) from the Al matrix to the CNT reinforcement. Moreover, the shape and position of the Al 4 C 3 formed supported the enhancement of the mechanical properties.…”

Influence of the Crack Spacing in the Coating Layer on the Progress of Interfacial Debonding in Galvannealed Steel Pulled in Tension

“…1,2) As these materials are composed of brittle coating layer with low failure strain and ductile substrate with far higher failure strain, the coating layer exhibits multiple cracking perpendicular to the tensile direction, [3][4][5][6][7][8][9][10][11][12] followed by spalling, when tensile stress is applied externally. In our former work, the following spalling process, as schematically shown in Fig.…”