Results 21 to 30 of about 4,530 (208)

On the Development of Material Constitutive Model for 45CrNiMoVA Ultra-High-Strength Steel

Metals, 2019
For the implementation of simulations for large plastic deformation processes such as cutting and impact, the development of the constitutive models for describing accurately the dynamic plasticity and damage behaviors of materials plays a crucial role ...
Xin Hu, Lijing Xie, Feinong Gao, Junfeng Xiang   +3 more
doaj   +1 more source

METHODOLOGY FOR COMPARISON OF HYDROCODE MODELLING WITH EXPERIMENT FOR SPLIT HOPKINSON PRESSURE BAR (SHPB) TESTING OF SOFT MATERIALS

Engineering Transactions, 2011
Summary: The objective of this work is to develop a technique for reliable comparison of simulations with SHPB data in order to validate material models for ``soft'' materials such as polymers. Comparison with an output stress-strain curve is not sufficient since there are many assumptions built into this analysis.
P. CHURCH, R. PEREIRA, P. GOULD, I. LEWTAS   +3 more
openaire   +3 more sources

A Numerical Investigation of Deformed Region in Plate Specimen of Split-Hopkinson Tensile Bar [PDF]

한국정밀공학회지
In Hopkinson bar theory, stress, strain, and strain rate can be determined by analyzing the dimensions of the specimen. When conducting Split-Hopkinson Pressure Bar (SHPB) experiments, the stress-strain curve is obtained by considering the entire length ...
Byeongjin Park, Yeon-Bok Kim, Jeong Kim
doaj   +1 more source

X-ray microtomographic characterization and quantification of the strain rate dependent failure mechanism in cenosphere epoxy syntactic foams [PDF]

, 2016
This work investigates the failure mechanism in cenosphere epoxy syntactic foams at the quasi-static and dynamic strain rates. Split-Hopkinson pressure bar experiments are controlled to stop dynamic deformation of the foams at various strain stages.
Adrien, Ahmadi, Awaja, Das, Dou, Gu, Huang, Huang, Kim, Kishore, Klaus, Labella, Li, Li, Li, Li, Maire, Orbulov, Pellegrino, Peroni, Song, Veseniak, Viot, Wang, Woldesenbet, Woldesenbet, Wouterson   +26 more
core   +1 more source

Indigenous Design and Development of Split Hopkinson Pressure Bar (SHPB) test setup for characterization of materials at high strain rates

IOP Conference Series: Materials Science and Engineering, 2020
Abstract This paper presents design and development of split Hopkinson pressure bar (SHPB) indigenously for testing of different materials at high deformation rate. SHPB is capable to measure the deformation rate 100s-1 to 2,000s-1, by maintaining the uniform and uni-axial stress in the samples.
M Bilal Nutkani, Muhammad Abid, Riffat Asim Pasha, Uzair Ahmed Dar   +3 more
openaire   +1 more source

Intermediate strain rate behavior of cancellous bone: From the lower to the higher strain rate [PDF]

, 2014
Not ...
CLOETE, Trevor John, LAPORTE, Sébastien, PROT, Marianne, SALETTI, Dominique   +3 more
core   +5 more sources

Design of a split Hopkinson pressure bar with partial lateral confinement [PDF]

, 2016
This paper presents the design of a modified split Hopkinson pressure bar (SHPB) where partial lateral con- finement of the specimen is provided by the inertia of a fluid annulus contained in a long steel reservoir.
Andrew D Barr, Andrew Tyas, Barr A D, Clarke S D, Frew D J, Gray G TIII ed Medlin D, Hallquist J O, James A Warren, Lu H, Pierce S J, Sam D Clarke, Sam E Rigby, Tyas A   +12 more
core   +1 more source

Characterization of compressive damage behavior of steel and aluminum [PDF]

, 2011
Compressive deformation is imposed on aluminum cast 195-76 and ferritic stainless steel 18-8specimens at high strain rateusing perforation split Hopkinson pressure bar (P-SHPB).The energy levels and the compressive dynamic failure behavior of the ...
Allazadeh, Mohammad R., Itani, Maher K., Wosu, Sylvanus N.   +2 more
core   +1 more source

Effect of structurally-induced lateral confinement on split Hopkinson pressure bar test specimens of concrete-like materials

EPJ Web of Conferences, 2015
In dynamic testing of concrete-like materials, there is a need in distinguishing structural effects from genuine strain-rate effects. In this paper, this generic problem is studied by numerical simulations based on a phenomenological material model ...
Flores-Johnson E.A., Li Q.M.
doaj   +1 more source

Dynamic compression characteristics of layered rock mass of significant strength changes in adjacent layers

Journal of Rock Mechanics and Geotechnical Engineering, 2020
Layered rock mass of significant strength changes for adjacent layers is frequently observed in underground excavation, and dynamic loading is a prevalent scenario generated during excavation.
Sen Wen, Chunshun Zhang, Yulin Chang, Ping Hu   +3 more
doaj   +1 more source