Study on Crack Propagation Velocity of Mortar/Granite Specimens by Impact Test

Tamano, Tomio; Kanaoka, Masanobu; Takehara, Kosei; Mizutani, Natsuki; Oshima, Koichiro; Eto, Takeharu

doi:10.2472/jsms.57.8

Cited by 3 publications

(2 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…They have also shown that the shockfailure behavior of a mortar specimen significantly changes with the magnitude of the impulse. Recently, Tamano et al [3] visualized the shock crack propagation in a mortar specimen by using the above-mentioned high-speed video camera. Their results indicate that the crack propagation velocity increases as the impulse force increases at relatively low impulse, but the crack propagation velocity reaches an upper bound value with the large impulse.…”

Section: Introductionmentioning

confidence: 99%

Visualization and PIV analysis of shock-failure behavior of brittle bodies

et al. 2008

View full text Add to dashboard Cite

The authors applied an ultra-high-speed video camera to visualize crack propagation in brittle bodies, such as mortar specimens, under the impact splitting test. Strain of the brittle bodies in impact splitting tests was analyzed by means of PIV (Particle Image Velocimtery), which is usually used for measurements of flow fields with tracer particles.The results show that, when the applied impulse on the mortar specimens is increased, the crack propagation velocity reaches an upper bound. The upper bound of the crack propagation velocity was 2.6 km/sec. The horizontal tensile strain around the crack tip was estimated to be 370 µ by PIV measurement with the ultra-high-speed camera, and 270 -375 µ by strain gages, respectively. Those results showed a good agreement with each other.

show abstract

Section: Introductionmentioning

confidence: 99%

Visualization and PIV analysis of shock-failure behavior of brittle bodies

et al. 2008

View full text Add to dashboard Cite

show abstract

“…Engineering methods to perceive the mechanical state of stone bridges include configuration measurements and strain measurements (Tamano et al, 2009). As for the safety management of arch-type stone bridges by deformation measurements, there is a limit to perceiving the distinct mechanical tendencies, because the deformation is extremely small.…”

Section: Strain Measurementsmentioning

confidence: 99%

Mechanical behaviors of the arch-type stone bridge

Tamano

Kanaoka

Nishikawa

et al. 2016

JGS Special Publication

Self Cite

View full text Add to dashboard Cite

This paper presents the structure of the arch-type stone bridge and its mechanical behavior verified by strain measurements taken during the construction. The arch-type stone bridge was constructed by combining an archstone structure and a socket structure without the introduction of a reaction structure. The arch-type stone bridge, fitted with a socket structure on the upper part of its arch-stone structure, is created by suppressing the deformation of the arch stones. As a result of the strain measurements of the arch stones during the construction, the compressive strain levels of the arch direction were 198-244 and the temperature-strain coefficients were 5.1-10.8/ºC. These types of mechanical behavior verify that the arch-type stone bridge is in a stable mechanical state.

show abstract

Development and Preliminary Testing of a Crack Detection Sensor for Crack Velocity Measurement of an Edge-Notched Disk

Hsieh

Wang

2009

Journal of Testing and Evaluation

View full text Add to dashboard Cite

In the present study, a crack velocity measuring system is developed based on the electrical method. The proposed crack velocity measuring system and an available crack gage system were attached on opposite sides of an edge-notched granite disk specimen to measure the velocity of crack propagation on each side of the surface crack. Three sensing materials were assessed for their applicability in crack detection. It was found that the sensing materials have a strong effect on the measurement of the crack velocity. Several observations on crack propagation and some aspects of the proposed measuring technique are discussed in this study.

show abstract

Study on Crack Propagation Velocity of Mortar/Granite Specimens by Impact Test

Cited by 3 publications

References 3 publications

Visualization and PIV analysis of shock-failure behavior of brittle bodies

Visualization and PIV analysis of shock-failure behavior of brittle bodies

Mechanical behaviors of the arch-type stone bridge

Development and Preliminary Testing of a Crack Detection Sensor for Crack Velocity Measurement of an Edge-Notched Disk

Contact Info

Product

Resources

About