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A schematic view of ( a ) the microprobe insertion mechanism into the brain...
Published Online: July 28, 2022
Fig. 1 A schematic view of ( a ) the microprobe insertion mechanism into the brain, ( b ) the applied force by the inserter and its effect on the microprobe and brain surface, and ( c ) the intracortical polyimide microprobe with piezoelectric-based stiffness control More
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For three modified polyimide microprobes with different diameters of 20  µ ...
Published Online: July 28, 2022
Fig. 2 For three modified polyimide microprobes with different diameters of 20 µ m, 30 µ m, and 40 µ m and piezoelectric layers with thickness of 1 µ m: ( a ) the flexural stiffness ratio, E I * , against the piezoelectric layers angle, θ and ( b ) the generated piezoelectric forc... More
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The dimensionless critical buckling force,     P  *    , of the modified po...
Published Online: July 28, 2022
Fig. 3 The dimensionless critical buckling force, P * , of the modified polyimide microprobe against the applied voltage for two different angles of 10 deg and 32 deg More
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The dimensionless critical buckling force,     P  *    , of the modified po...
Published Online: July 28, 2022
Fig. 4 The dimensionless critical buckling force, P * , of the modified polyimide microprobe with 1 µ m thick piezoelectric layer and θ = 10 deg against the applied voltage for ( a ) diameter of 20 µ m and different lengths of 2 mm, 5 mm, and 8 mm and ( b ) length of 5 mm and different... More
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The dimensionless critical buckling force,     P  *    , of the modified po...
Published Online: July 28, 2022
Fig. 5 The dimensionless critical buckling force, P * , of the modified polyimide microprobe with length of 5 mm and diameters of 20 µ m, and different piezoelectric layer thicknesses of 0.5 µ m, 1 µ m, and 1.5 µ m against the applied voltage More
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( a ) A 3D model of the simulated microprobe and embedded piezoelectric lay...
Published Online: July 28, 2022
Fig. 6 ( a ) A 3D model of the simulated microprobe and embedded piezoelectric layers and ( b ) the microprobe lateral displacement against the applied compressive force More
Journal Articles
Journal Articles
Journal Articles
Journal Articles
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( a ) DWTC turbine blade model—adapted from Ref. [ 1 ]. ( b ) Elastic stres...
Published Online: July 26, 2022
Fig. 1 ( a ) DWTC turbine blade model—adapted from Ref. [ 1 ]. ( b ) Elastic stress field arising from TM loading in a unit block representative of Fig. 1( a )—reproduced from Ref. [ 3 ]. ( c ) 2D plane stress double-wall idealization of the problem in Fig. 1( b ), featuring a typical steady-state... More
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( a ) Temperature-dependent yield stress models B and C calibrated for CMSX...
Published Online: July 26, 2022
Fig. 2 ( a ) Temperature-dependent yield stress models B and C calibrated for CMSX-4. ( b ) Power law creep model C, calibrated for CMSX-4 based on isothermal creep rate data at different stress levels. Reproduced from Ref. [ 2 ]. More
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Physical illustration of groups of ratchet mechanisms that occur in the gen...
Published Online: July 26, 2022
Fig. 3 Physical illustration of groups of ratchet mechanisms that occur in the general case of Δ T h ¯ > 0 and constant yield stress, σ y (material model A). In the left column, plasticity occurs at the load extremes, whereas in the right column, plasticity occurs at the... More
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Physical illustration of extreme cases of ratchet mechanisms where the enti...
Published Online: July 26, 2022
Fig. 4 Physical illustration of extreme cases of ratchet mechanisms where the entire hot wall yields; these occur at low Δ T h ¯ and have been determined in for Δ T h ¯ = 0 . SR1′, PR2′, and SR2′ are extreme cases of SR1, PR2, and SR2 in Figs. 4( a ) , 4( c ) ... More
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Interaction diagrams for constant yield stress (material model A) and  t   ...
Published Online: July 26, 2022
Fig. 5 Interaction diagrams for constant yield stress (material model A) and t c / t h = 1, for varying Δ T h ¯ : ( a ) Δ T h ¯ = 0 , ( b ) Δ T h ¯ = 0.3 , ( c ) Δ T h ¯ = 0.8 , and ( d ) Δ T h ¯ = 1 ... More
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Interaction diagrams for constant yield stress (material model A) and the c...
Published Online: July 26, 2022
Fig. 6 Interaction diagrams for constant yield stress (material model A) and the cases of ( a )–( c ) t c / t h = 2 and ( d )–( f ) t c / t h = 0.9, for varying Δ T h ¯ . Inactive ratchet boundaries and sections of SPh and SPc falling outside the inner envelope of S... More
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Interaction diagrams for material models B and C (temperature-dependent yie...
Published Online: July 26, 2022
Fig. 7 Interaction diagrams for material models B and C (temperature-dependent yield stress with creep ( C ) and no creep ( B )) for varying wall thickness ratio, t c / t h , and thermal gradient ratio, Δ T h ¯ , and a fixed maximum temperature, T max = 1100 ∘ ... More
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Interaction diagrams showing the effect of maximum temperature,  T  max , a...
Published Online: July 26, 2022
Fig. 8 Interaction diagrams showing the effect of maximum temperature, T max , and creep dwell time, t dwell , on the CP, CR, and C regimes induced by creep (material models B and C): ( a ) Maximum temperature, T max = 1000 ∘ C and fixed creep dwell time, t dwell =... More