Results 81 to 90 of about 3,979 (211)
In this paper, microstructure evolution and mechanic properties of metastable near β Ti-5553 alloy were investigated. SHPB, SHTB and light gas gun were employed to carry out the dynamic loadings.
Wang Lin +4 more
doaj +1 more source
This study addresses the challenge of simultaneously controlling rock fragmentation and vibration during underwater rock blasting in complex environments. The Wuzhou Siliang River underwater blasting project was adopted as a case study. This research integrated field tests with LS‐DYNA numerical simulations based on the fluid–structure interaction (FSI)
Hou Yaning +5 more
wiley +1 more source
Fractured rocks containing infill materials are frequently encountered in engineering applications, and an understanding of dynamic characteristics is crucial for assessing stability and preventing disasters in rock engineering projects. The novel feature of this paper is that a dynamic constitutive model of fractured rocks with fillings is proposed to
Liang Han +5 more
wiley +1 more source
Numerical simulations of SHPB tests using 921A steel pure shear hat-shaped specimens
A series of numerical simulations of SHPB tests using 921A steel pure shear hat-shaped specimens are conducted with ANSYS/LS-DYNA and validated by the SHPB tests in the present paper. Integrated with the theory of stress wave propagation in a SHPB system,
J. C. Li +4 more
core +1 more source
The hydrogen‐bond‐enhanced CNC/WPU nanocomposites, fabricated via solution casting, exhibited a 59.6% increase in elastic modulus (5.57 ± 0.46 GPa), 29.9% higher energy absorption (165.2 ± 6.7 MJ·m−3), and a 36.21% improvement in maximum engineering stress (545.5 ± 17.5 MPa) at 0.5 wt.% CNC.
Mingping Zhou +8 more
wiley +1 more source
Characterisation of dynamic behaviour of alumina ceramics: evaluation of stress uniformity
Accurate characterisation of dynamic behaviour of ceramics requires the reliable split-Hopkinson pressure bar (SHPB) technique and the condition of uniaxial homogeneous specimen deformation.
Zhiyong Wang, Peifeng Li
doaj +1 more source
Prediction of maximum strain and strain rate in SHPB specimens based on energy analysis [PDF]
The split Hopkinson pressure bar (SHPB) technique developed by H. Kolsky has been widely used to determine stress-strain curves of materials at strain rates from 102 to 104 s'.
Nurizzatul Atikha, Rahmat
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Numerical Analysis on Usability of SHPB to Characterize Dynamic Stress–Strain Relation of Metal Foam
Split Hopkinson pressure bar (SHPB) technique is the most important test method to characterize dynamic stress–strain relations of various materials at different strain rates, and this technique requires uniform deformation of specimen during the ...
Zejia Liu +4 more
core +1 more source
Dynamic mechanical response and failure patterns of ore rocks with varying grades
This study investigates the dynamic mechanical response and energy dissipation mechanism of ore rock with different grades from the Baiyun Ebo West Mine under impact loading.
DU Wenxiu +7 more
doaj +1 more source
一、历史的回顾一般认为,J.Hopkinson与B.Hopkinson父子是利用长杆中应力波传播技术研究材料在高应变率下力学性质的奠基人。B.Hopkinson利用压力传感器测量了沿杆传播的应力脉冲,奠定了SHPB的技术基础。但实际上,在二次世界大战前后 ...
段祝平
core

