... scanning calorimetry high-temperature effects internal stresses polymers resins shape memory effects shape memory effects shape memory polymers time dependent epoxy Shape memory polymers (SMPs) represent an important addition to the smart materials family. They can recover a permanent...

... ignore thermal contraction/expansion in the general theory. Thermal strain will be included when we consider the shape memory effect. In addition, we consider a relatively simple case where the nominal stress of the rubbery phase and the SIC phase are defined as 2 σ r = ∂ W r ( λ...

... performed to characterize the pseudoelasticity and shape memory effects. Uni-axial compression tests were also performed at different testing temperatures. The wear tests were conducted using a pin-on-disk tribometer at testing temperatures ranging from 0 ° C to 80 ° C . The wear results showed...

...C. Maletta; A. Falvo; F. Furgiuele A phenomenological model to simulate the two-way shape memory effect (TWSME) in nickel-titanium alloys (NiTi) is proposed. The model is based on the Prandtl–Ishlinksii operator and it is able to simulate the hysteretic behavior of the material in the strain...

... essential for solid state bonding of Ti x Al y intermetallic compound were carried out. Strong interface bonding between NiTi fiber and Al6061 matrix was obtained. The strengthening mechanism of shape memory effect associated with short fiber reinforcement was theoretically examined by extending Taya’s...

.... The examples demonstrate the usefulness of the methods for the design and simulation of SMA hybrid composites. 31 08 2005 12 04 2006 beams (structures) composite materials polymers shape memory effects finite element analysis thermomechanical treatment shape memory alloys Nitinol...

... 0.1746 k 2 (ksi) 4430 σ c (ksi) 15.218 μ (ksi) 14 N 2.1 α 2.6 f T 0.0727 A 3000 01 09 2005 11 04 2006 shape memory effects elastic hysteresis martensitic transformations Nickel-titanium (NiTi) shape...

... dissipation capacity and recentering capabilities to the system. shape memory alloys damping recentering earthquake engineering innovative systems nickel alloys titanium alloys bars shape memory effects elasticity damping internal stresses buckling vibrations 31 08 2005...

..., they feature the superelastic effect and the shape-memory effect , two uncommon properties not present in materials traditionally used in engineering. The former is related to the ability of the material to regain its initial shape upon removal of the external load, while the latter refers to the capacity...

... of Shape Memory Effects in Alloys ,” Nucl. Eng. Des. 0029-5493 , 74 , pp. 173 – 182 . Bo , Z. , and Lagoudas , D. , 1999 , “ Thermomechanical Modeling of SMAs Under Cyclic Loading ,” Int. J. Eng. Sci. 0020-7225 10.1016/S0020-7225(98)00113-X , 37 , pp. 1089 – 1249 . Helm...

... behavior thermal dissipation thermomechanical modeling nonlinear modeling nickel alloys titanium alloys shape memory effects thermodynamics tensile strength hysteresis Young's modulus viscoelasticity damping solid-state phase transformations 30 08 2005 01 03 2006 2006...

... observed as functionally graded in both composition and porosity. 19 09 2005 27 02 2006 nickel alloys titanium alloys titanium compounds composite materials functionally graded materials combustion synthesis elasticity shape memory effects hardness wear corrosion resistance X...

...—mechanical loading at constant temperature, cooling under constant stress, and recovery stress tests are presented and confronted with results. 26 08 2005 26 02 2006 nickel alloys titanium alloys wires bars shape memory effects stress-strain relations thermomechanical treatment...

... , J. , and Auricchio , F. , 1996 , “ Generalized Plasticity and Shape Memory Alloys ,” Int. J. Solids Struct. 0020-7683 , 33 ( 7 ), pp. 991 – 1003 . Tanaka , K. , 1986 , “ A Thermomechanical Sketch of Shape Memory Effect: One-Dimensional Tensile Behaviour ,” Res. Mech. 0143...

... in terms of the complex modulus approach, a formulation extensively used in vibration damping applications to identify the viscoelastic material and structure combination to increase modal damping ratios close to resonance behaviour ( 4 ). nickel alloys titanium alloys copper alloys shape memory...

... to a novel shape memory effect to Cu nanowires not seen in bulk Cu. Consider the surface stress-induced stress as a measure for the driving force of the structural reconstruction. When the nanowire is first “sliced” out from bulk Cu, surface atoms lose the symmetry of forces from neighboring atoms...

... nickel alloys shape memory effects martensitic transformations compressive testing stress-strain relations elastic deformation elasticity work hardening crystal microstructure stress effects internal stresses NiTi Shape-Memory Alloy Strain Rate Superelasticity Hopkinson Bar...

... April 2004 09 11 2004 nickel alloys titanium alloys shape memory effects stress-strain relations fatigue cracks elasticity bending fatigue testing surface roughness rough surfaces In a shape memory alloy (SMA), the shape memory effect (SME) appears to be mainly due...

...R. Lahoz; L. Gracia-Villa; J. A. Pue´rtolas The two-way shape memory effect (TWSME), has been studied in a near-equiatomic NiTi commercial alloy. Two bending training methods have been applied on NiTi wires. One is based on the martensite deformation and the other on thermal cycling under constant...

... of smart composite In the present research, SMA TiNi Fiber Reinforced Epoxy Resin Matrix Composite (SMA-FEC) was developed as a photoelastic model material with shape memory effect. The SMA-FEC specimen was electrically heated and the recovery phenomenon occurred as a result of thermal shrinkage...