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Peter C. Amadio - One of the best experts on this subject based on the ideXlab platform.

  • does Loading Velocity affect failure strength after tendon repair
    Journal of Biomechanics, 2012
    Co-Authors: Manoj Parimi, Chunfeng Zhao, Andrew R. Thoreson, Peter C. Amadio
    Abstract:

    Tensile testing of repaired tendons has been used to assess the efficacy of repair techniques. However, individuals flex and extend fingers at rates higher than those typically used for testing. This study characterized the effect of Loading rate on the failure strength of repaired canine flexor tendons. Thirty-six canine flexor digitorum profundus tendons were lacerated, repaired, and tested at three displacement rates: 0.33 mm/s; 84 mm/s; and 590 mm/s. Peak force and stiffness of the repairs were evaluated. Peak force was significantly greater (p<0.05) for tendons distracted at 590 mm/s than at 0.33 mm/s. Crosshead stiffness was significantly greater for tendons distracted at 590 mm/s than at either 84 mm/s or 0.33 mm/s. The predominant failure mode was core suture knot untying. Distracting tendons at slow Loading rates provides a conservative assessment of tendon repair strength. Additionally, an estimate of the failure load of this repair for different clinical events has been identified.

  • Does Loading Velocity affect failure strength after tendon repair
    Journal of biomechanics, 2012
    Co-Authors: Manoj Parimi, Chunfeng Zhao, Andrew R. Thoreson, Peter C. Amadio
    Abstract:

    Tensile testing of repaired tendons has been used to assess the efficacy of repair techniques. However, individuals flex and extend fingers at rates higher than those typically used for testing. This study characterized the effect of Loading rate on the failure strength of repaired canine flexor tendons. Thirty-six canine flexor digitorum profundus tendons were lacerated, repaired, and tested at three displacement rates: 0.33 mm/s; 84 mm/s; and 590 mm/s. Peak force and stiffness of the repairs were evaluated. Peak force was significantly greater (p

Manoj Parimi - One of the best experts on this subject based on the ideXlab platform.

  • does Loading Velocity affect failure strength after tendon repair
    Journal of Biomechanics, 2012
    Co-Authors: Manoj Parimi, Chunfeng Zhao, Andrew R. Thoreson, Peter C. Amadio
    Abstract:

    Tensile testing of repaired tendons has been used to assess the efficacy of repair techniques. However, individuals flex and extend fingers at rates higher than those typically used for testing. This study characterized the effect of Loading rate on the failure strength of repaired canine flexor tendons. Thirty-six canine flexor digitorum profundus tendons were lacerated, repaired, and tested at three displacement rates: 0.33 mm/s; 84 mm/s; and 590 mm/s. Peak force and stiffness of the repairs were evaluated. Peak force was significantly greater (p<0.05) for tendons distracted at 590 mm/s than at 0.33 mm/s. Crosshead stiffness was significantly greater for tendons distracted at 590 mm/s than at either 84 mm/s or 0.33 mm/s. The predominant failure mode was core suture knot untying. Distracting tendons at slow Loading rates provides a conservative assessment of tendon repair strength. Additionally, an estimate of the failure load of this repair for different clinical events has been identified.

  • Does Loading Velocity affect failure strength after tendon repair
    Journal of biomechanics, 2012
    Co-Authors: Manoj Parimi, Chunfeng Zhao, Andrew R. Thoreson, Peter C. Amadio
    Abstract:

    Tensile testing of repaired tendons has been used to assess the efficacy of repair techniques. However, individuals flex and extend fingers at rates higher than those typically used for testing. This study characterized the effect of Loading rate on the failure strength of repaired canine flexor tendons. Thirty-six canine flexor digitorum profundus tendons were lacerated, repaired, and tested at three displacement rates: 0.33 mm/s; 84 mm/s; and 590 mm/s. Peak force and stiffness of the repairs were evaluated. Peak force was significantly greater (p

Lei Wang - One of the best experts on this subject based on the ideXlab platform.

  • Fracture Behavior of a Shape Memory Alloy at High Loading Velocity and High Temperature
    Materials Science Forum, 2005
    Co-Authors: Lei Wang, Toshiro Kobayashi, Y. Harada, Koichi Tsuchiya
    Abstract:

    The fracture behavior under high-Loading Velocity and at high temperature was investigated using tensile testing system for a shape memory alloy. Both SEM and X-Ray were used to examined the testing sample before and after tensile testing. It was found that the fracture behavior shows some similar tendency between at high-Loading Velocity and high-temperature. Based on the results, it can be confirmed that the shape memory alloy can be used to develop high performance intelligent material with high-impact resistance.

  • High-Loading Velocity tensile properties and fracture behavior of SiCp/AC4CH composite
    MATERIALS TRANSACTIONS, 2004
    Co-Authors: Lei Wang, Toshiro Kobayashi, Chunming M. Liu, Tomokazu Masuda
    Abstract:

    This study conducted a high-Loading Velocity tensile test for a SiCp/AC4CH composite and an AC4CH alloy (Al-6.7%Si-0.3%Mg alloy). Microstructures of both materials before and after tensile testing were carefully examined with an optical microscope and SEM. Experimental results demonstrate that the ultimate tensile strength (UTS) of the SiCp/AC4CH composite increased with increasing Loading Velocity up to 10 m.s 1 . Compared to the AC4CH alloy, the fracture elongation of the SiCp/AC4CH composite is more sensitive to the strain rate. The AC4CH alloy yield strength (YS) shows more sensitivity than that of UTS with increasing strain rate, especially in the range of Loading Velocity higher than I m.s - 1 . The composite failed by coalescence of microcracking/microvoiding The ratio of broken SiC particles increases with increasing Loading Velocity.

  • Tensile Properties and Fracture Behavior of SiCp/AC4CH Composite at Loading Velocities of up to 10m/s
    Materials Science Forum, 2004
    Co-Authors: Lei Wang, Toshiro Kobayashi, Chunming M. Liu
    Abstract:

    Tensile test at Loading velocities up to 10 m·s-1 (strain rate up to 3.2x102 s-1) was carried out forr SiCp/AC4CH composite and AC4CH alloy. The microstructure of the composite before and after tensile deformation was carefully examined with both optical microscope and SEM. The experimental results demonstrated that the ultimate tensile strength (UTS) and yield strength (YS) increase with increasing Loading Velocity up to 10 m·s-1. Comparing with AC4CH alloy, the fracture elongation of the composite is sensitivity with the increasing strain rate. The YS of both the composite and AC4CH alloy shows more sensitive than that of the UTS with the increasing strain rate, especially in the range of strain rate higher than 102 s-1.

  • Effect of Loading Velocity and testing temperature on the fracture toughness of a SiCw/6061Al alloy composite
    Materials Science and Engineering: A, 2000
    Co-Authors: Lei Wang, Toshiro Kobayashi, Hiroyuki Toda, Motozo Hayakawa
    Abstract:

    Abstract The effects of Loading Velocity and testing temperature on the fracture toughness of a SiC whisker reinforced 6061 aluminum alloy composite were investigated. A precracked three-point bend specimen configuration was selected for fracture toughness measurement, with tests being conducted at Loading velocities of 10 −2 –10 m s −1 , and from room temperature to 473 K. The results showed that the fracture toughness increases with increasing Loading Velocity, but, the difference with respect to room temperature is small, because the fracture toughness decreases slowly with the increase of testing temperature. The composite material failed mainly by whisker pull-out and whisker breaking.

Chunfeng Zhao - One of the best experts on this subject based on the ideXlab platform.

  • does Loading Velocity affect failure strength after tendon repair
    Journal of Biomechanics, 2012
    Co-Authors: Manoj Parimi, Chunfeng Zhao, Andrew R. Thoreson, Peter C. Amadio
    Abstract:

    Tensile testing of repaired tendons has been used to assess the efficacy of repair techniques. However, individuals flex and extend fingers at rates higher than those typically used for testing. This study characterized the effect of Loading rate on the failure strength of repaired canine flexor tendons. Thirty-six canine flexor digitorum profundus tendons were lacerated, repaired, and tested at three displacement rates: 0.33 mm/s; 84 mm/s; and 590 mm/s. Peak force and stiffness of the repairs were evaluated. Peak force was significantly greater (p<0.05) for tendons distracted at 590 mm/s than at 0.33 mm/s. Crosshead stiffness was significantly greater for tendons distracted at 590 mm/s than at either 84 mm/s or 0.33 mm/s. The predominant failure mode was core suture knot untying. Distracting tendons at slow Loading rates provides a conservative assessment of tendon repair strength. Additionally, an estimate of the failure load of this repair for different clinical events has been identified.

  • Does Loading Velocity affect failure strength after tendon repair
    Journal of biomechanics, 2012
    Co-Authors: Manoj Parimi, Chunfeng Zhao, Andrew R. Thoreson, Peter C. Amadio
    Abstract:

    Tensile testing of repaired tendons has been used to assess the efficacy of repair techniques. However, individuals flex and extend fingers at rates higher than those typically used for testing. This study characterized the effect of Loading rate on the failure strength of repaired canine flexor tendons. Thirty-six canine flexor digitorum profundus tendons were lacerated, repaired, and tested at three displacement rates: 0.33 mm/s; 84 mm/s; and 590 mm/s. Peak force and stiffness of the repairs were evaluated. Peak force was significantly greater (p

Andrew R. Thoreson - One of the best experts on this subject based on the ideXlab platform.

  • does Loading Velocity affect failure strength after tendon repair
    Journal of Biomechanics, 2012
    Co-Authors: Manoj Parimi, Chunfeng Zhao, Andrew R. Thoreson, Peter C. Amadio
    Abstract:

    Tensile testing of repaired tendons has been used to assess the efficacy of repair techniques. However, individuals flex and extend fingers at rates higher than those typically used for testing. This study characterized the effect of Loading rate on the failure strength of repaired canine flexor tendons. Thirty-six canine flexor digitorum profundus tendons were lacerated, repaired, and tested at three displacement rates: 0.33 mm/s; 84 mm/s; and 590 mm/s. Peak force and stiffness of the repairs were evaluated. Peak force was significantly greater (p<0.05) for tendons distracted at 590 mm/s than at 0.33 mm/s. Crosshead stiffness was significantly greater for tendons distracted at 590 mm/s than at either 84 mm/s or 0.33 mm/s. The predominant failure mode was core suture knot untying. Distracting tendons at slow Loading rates provides a conservative assessment of tendon repair strength. Additionally, an estimate of the failure load of this repair for different clinical events has been identified.

  • Does Loading Velocity affect failure strength after tendon repair
    Journal of biomechanics, 2012
    Co-Authors: Manoj Parimi, Chunfeng Zhao, Andrew R. Thoreson, Peter C. Amadio
    Abstract:

    Tensile testing of repaired tendons has been used to assess the efficacy of repair techniques. However, individuals flex and extend fingers at rates higher than those typically used for testing. This study characterized the effect of Loading rate on the failure strength of repaired canine flexor tendons. Thirty-six canine flexor digitorum profundus tendons were lacerated, repaired, and tested at three displacement rates: 0.33 mm/s; 84 mm/s; and 590 mm/s. Peak force and stiffness of the repairs were evaluated. Peak force was significantly greater (p