Quasi-static and dynamic splitting of high-strength concretes – tensile stress–strain response and effects of strain rate

Guo, Yang; Gao, Guangfa; Jing, Lin; Shim, V.P.W.

doi:10.1016/j.ijimpeng.2018.11.012

Cited by 63 publications

(26 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This method can solve the problem that the actual structure sometimes is too large or too heavy that exceeds the loading capacity of the test equipment. Since the hybrid test technology was put forward in 1992 (Guo et al 2019b), it has been widely used in the research of the seismic performance of building structures, and then gradually used in the research of the seismic performance of bridge structures. Yuan et al (2019a) carried out pseudo-dynamic tests on the scaled model of concrete-filled steel tubular lattice column piers of the Ganhaizi super large bridge and studied the seismic performance of such structures under different intensity earthquakes and main aftershocks.…”

Section: Hybrid Testingmentioning

confidence: 99%

See 1 more Smart Citation

Review of annual progress of bridge engineering in 2019

Zhao

Yuan

Wei

et al. 2020

ABEN

View full text Add to dashboard Cite

Bridge construction is one of the cores of traffic infrastructure construction. To better develop relevant bridge science, this paper introduces the main research progress in China and abroad in 2019 from 13 aspects, including concrete bridges and the high-performance materials, the latest research on steel-concrete composite girders, advances in box girder and cable-supported bridge analysis theories, advance in steel bridges, the theory of bridge evaluation and reinforcement, bridge model tests and new testing techniques, steel bridge fatigue, wind resistance of bridges, vehicle-bridge interactions, progress in seismic design of bridges, bridge hydrodynamics, bridge informatization and intelligent bridge and prefabricated concrete bridge structures.

show abstract

Section: Hybrid Testingmentioning

confidence: 99%

“…In addition, digital image correlation technology can also be applied to strain testing. Guo et al (2019b) used the technology of strain measurement and digital image correlation (DIC) to determine the deformation of samples when testing the tensile properties of high-strength concrete with different compressive strength.…”

Section: New Testing Technologymentioning

confidence: 99%

Review of annual progress of bridge engineering in 2019

Zhao

Yuan

Wei

et al. 2020

ABEN

View full text Add to dashboard Cite

show abstract

“…For quasi‐brittle materials, the static indirect tensile failure is caused by a tensile main crack in the interior of the specimen along the diametral direction. Therefore, the indirect tension specimen splits into two major portions with small fragments in static experimental tests …”

Section: Resultsmentioning

confidence: 99%

“…Due to high compressive resistance, most research pays more attention to dynamic compressive mechanical performance of ceramic material under impact loading compared to its dynamic tensile response. In recent years, some studies employ the SHPB system to realize the indirect tensile experimental tests of brittle materials, such as rock, concrete, glass, and glass ceramic . Results show that the dynamic tensile strengths and fracture modes of brittle materials depend strongly on the loading rate.…”

Section: Introductionmentioning

confidence: 99%

Dynamic tensile mechanical properties and failure mode of zirconium diboride‐silicon carbide ceramic composites

Liu

Zhang³

2020

Int J Applied Ceramic Tech

View full text Add to dashboard Cite

Dynamic indirect tension experiments were performed on zirconium diboridesilicon carbide (ZrB 2 −20%SiC) ceramic. Flattened Brazilian disc specimens of ZrB 2 −20%SiC were prepared to conduct dynamic tensile tests using the modified Split Hopkinson pressure bar system. The tensile experiments were completed at the range of loading rates from 7.53 to 74.71 GP s −1 . The tensile experimental results revealed that the zirconium diboride-silicon carbide ceramic composite is rate-sensitive in terms of the tensile strength and failure mode. The dynamic tensile strength increases linearly with the loading rate and changes from 195 MPa at 7.53 GP s −1 to 654 MPa at 74.71 GP s −1 . Moreover, the dynamic tensile strength decreases with the increase in critical fracture time, which conforms to Tuler and Butcher's fracture criterion. In dynamic experiments, a high-speed camera was used to examine the tensile failure process, and fragments were collected to analyze the dynamic tensile failure mechanism. The tensile fracture mode of ZrB 2 −20%SiC obviously showed the sensitivity of the loading rate. The fragment size of ZrB 2 −20%SiC ceramic decreased but the quantity of fragments increased as the loading rate increased. K E Y W O R D S critical fracture time, dynamic loading, dynamic tensile strength, failure mode How to cite this article: Liu J, Hu Z, Zhang Y. Dynamic tensile mechanical properties and failure mode of zirconium diboride-silicon carbide ceramic composites. Int J Appl Ceram Technol. 2020;17:886-892. https ://doi.

show abstract

“…The intermediate strain rate uniaxial compressive tests were performed using an improved split Hopkinson pressure bar (SHPB for short) system, as sketched in Figure 2 . The whole set-up mainly consists of a traditional SHPB device and a DIC (Digital Image Correlation) measurement system [ 17 , 18 , 19 , 20 , 21 ]. All bars and strikers are made of high-yield steel and have the same diameter of 14.5 mm.…”

Section: Methodsmentioning

confidence: 99%

Strain Rate and Porosity Effect on Mechanical Characteristics and Depolarization of Porous Poled PZT95/5 Ceramics

2020

View full text Add to dashboard Cite

Shock wave compression of poled PZT95/5 ceramics results in rapid depoling and a release of bound charge. Porous PZT95/5 ceramics are superior to dense ceramics in high-voltage breakdown resistance under shock-wave loading. In this article, the mechanical and electrical responses of porous poled PZT95/5 ceramics under uniaxial stresses at different strain rates were investigated using the servo-hydraulic MTS810 universal test machine and the improved split Hopkinson pressure bar system. The engineering stress vs. axial and radial engineering strain curves of porous poled PZT95/5 ceramics under different strain rates exhibit anomalous nonlinear behavior. The nonlinear behavior and depolarization mechanism of porous poled PZT95/5 were attributed to the domain switching and phase transformation. By comparing the stress–strain curves of the porosity porous poled PZT95/5 ceramics at different strain rates, an obvious strain rate sensitivity of mechanical behavior can be found, and the strain rate sensitivity decreases with the increase of porosity. The critical stress of domain switching and phase transformation and the strength increased with increasing strain rate. In addition, their normalized values showed a logarithmic relationship with the strain rate. Finally, we suggest that the maximum polarization released is nearly independent of stress state and strain rate, and it only depends on the porosity.

show abstract

Quasi-static and dynamic splitting of high-strength concretes – tensile stress–strain response and effects of strain rate

Cited by 63 publications

References 27 publications

Review of annual progress of bridge engineering in 2019

Review of annual progress of bridge engineering in 2019

Dynamic tensile mechanical properties and failure mode of zirconium diboride‐silicon carbide ceramic composites

Strain Rate and Porosity Effect on Mechanical Characteristics and Depolarization of Porous Poled PZT95/5 Ceramics

Contact Info

Product

Resources

About