Forensic biomechanics gradually has become a significant component of forensic science.Forensic biomechanics is evidence-based science that applies biomechanical principles and methods to forensic practice,which has c...Forensic biomechanics gradually has become a significant component of forensic science.Forensic biomechanics is evidence-based science that applies biomechanical principles and methods to forensic practice,which has constituted one of the most potential research areas.in this review,we introduce how finite element techniques can be used to simulate forensic cases,how injury criteria and injury scales can be used to describe injury severity,and how tests of postmortem human subjects and dummy can be used to provide essential validation data.This review also describes research progress and new applications of forensic biomechanics in China.展开更多
Characterization of structure-related variation in corneal biomechanical properties is important for the design of corneal implants with a controllable degradation.In the current study,we conducted an in-vitro inflati...Characterization of structure-related variation in corneal biomechanical properties is important for the design of corneal implants with a controllable degradation.In the current study,we conducted an in-vitro inflation experiment on contact and structural-damaged porcine corneas and mapped the strain distribution during using digital image correlation(DIC)algorithm.The inflation experiment was performed with a pressure loading device,a steady-state pressure transducer and DIC system.Corneal samples with uniformly-distributed paint particles were fixed on the loading device,and then were subjected increasing pressure load through injection with a constant velocity(0.134 ml/min).Three-dimensional(3D)DIC algorithm was performed to present a map of the full-field strain distribution on the corneal surface.The results showed a significant difference in the strain distribution between the intact and damaged corneas.The time-strain history also exhibited differently when the two types of cornea samples were subjected to inflation.It indicated that the DIC technology is validated to characterize structure-related variation in corneal biomechanical properties.展开更多
基金The study was financially supported by grants from the National Key Research and Development Plan[grant number 2016YFC0800702]Council of National Science Foundation of China[grant numbers 81701863,81722027]+3 种基金Shanghai Key Laboratory of Forensic Medicine[grant number 17DZ2273200]Shanghai Forensic Service Platform[grant number 19DZ2290900]Central Research Institute Public Project[grant numbers GY2020G4,GY2019Z2]Opening Project of Shanghai Key Laboratory of Crime Scene Evidence[grant number 2019XCWZK03].
文摘Forensic biomechanics gradually has become a significant component of forensic science.Forensic biomechanics is evidence-based science that applies biomechanical principles and methods to forensic practice,which has constituted one of the most potential research areas.in this review,we introduce how finite element techniques can be used to simulate forensic cases,how injury criteria and injury scales can be used to describe injury severity,and how tests of postmortem human subjects and dummy can be used to provide essential validation data.This review also describes research progress and new applications of forensic biomechanics in China.
基金This work was supported by the Key R&D Program of China[grant number 2016YFC1103202]the National Natural Science Foundation of China[grant number 11972066].
文摘Characterization of structure-related variation in corneal biomechanical properties is important for the design of corneal implants with a controllable degradation.In the current study,we conducted an in-vitro inflation experiment on contact and structural-damaged porcine corneas and mapped the strain distribution during using digital image correlation(DIC)algorithm.The inflation experiment was performed with a pressure loading device,a steady-state pressure transducer and DIC system.Corneal samples with uniformly-distributed paint particles were fixed on the loading device,and then were subjected increasing pressure load through injection with a constant velocity(0.134 ml/min).Three-dimensional(3D)DIC algorithm was performed to present a map of the full-field strain distribution on the corneal surface.The results showed a significant difference in the strain distribution between the intact and damaged corneas.The time-strain history also exhibited differently when the two types of cornea samples were subjected to inflation.It indicated that the DIC technology is validated to characterize structure-related variation in corneal biomechanical properties.
