PREDICTION OF TOPOGRAPHIC CHANGES ON INAGE COAST CONSIDERING EFFECT OF WINDBLOWN SAND

The windblown sand-induced degradation of glass panels influences the serviceability and safety of these panels. In this study, the degradation of glass panels subject to windblown sand with different impact velocities and impact angles was studied based on a sandblasting test simulating a sandstorm. After the glass panels were degraded by windblown sand, the surface morphology of the damaged glass panels was observed using scanning electron microscopy, and three damage modes were found: a cutting mode, smash mode, and plastic deformation mode. The mass loss, visible light transmittance, and effective area ratio values of the glass samples were then measured to evaluate the effects of the windblown sand on the panels. The results indicate that, at high abrasive feed rates, the relative mass loss of the glass samples decreases initially and then remains steady with increases in impact time, whereas it increases first and then decreases with an increase in impact angle such as that for ductile materials. Both visible light transmittance and effective area ratio decrease with increases in the impact time and velocities. There exists a positive linear relationship between the visible light transmittance and effective area ratio.

Download Full-text

Experimental study on laminated glass responses of high-speed trains subject to windblown sand particles loading

Construction and Building Materials ◽

10.1016/j.conbuildmat.2021.124332 ◽

2021 ◽

Vol 300 ◽

pp. 124332

Author(s):

Gongxun Deng ◽

Wen Ma ◽

Yong Peng ◽

Shiming Wang ◽

Song Yao ◽

...

Keyword(s):

Experimental Study ◽

High Speed ◽

Laminated Glass ◽

Windblown Sand ◽

High Speed Trains ◽

Sand Particles

Download Full-text

TOPOGRAPHIC CHANGES AROUND FENCE FOR PREVENTING WINDBLOWN SAND AND ITS PREDICTION USING CELLULAR AUTOMATON METHOD

Journal of Japan Society of Civil Engineers Ser B3 (Ocean Engineering) ◽

10.2208/jscejoe.74.i_749 ◽

2018 ◽

Vol 74 (2) ◽

pp. I_749-I_754

Author(s):

Takuya YOKOTA ◽

Akio KOBAYASHI ◽

Takaaki UDA ◽

Atsunari KATSUKI ◽

Yasuhito NOSHI

Keyword(s):

Cellular Automaton ◽

Windblown Sand ◽

Cellular Automaton Method

Download Full-text

The effects of windblown sand on the deterioration of mural paintings in cave 285, in Mogao caves, Dunhuang

Journal of Building Physics ◽

10.1177/1744259118782540 ◽

2018 ◽

Vol 42 (5) ◽

pp. 652-671 ◽

Cited By ~ 3

Author(s):

Akane Mikayama ◽

Shuichi Hokoi ◽

Daisuke Ogura ◽

Ken Okada ◽

Bomin Su

Keyword(s):

Solar Radiation ◽

Environmental Effects ◽

The Other ◽

World Heritage Site ◽

Unesco World Heritage ◽

Desert Region ◽

Mural Paintings ◽

Heritage Site ◽

Unesco World Heritage Site ◽

Windblown Sand

The Mogao caves in Dunhuang are a UNESCO World Heritage Site located in the inland desert region of China. Within this site, cave 285 is one of the most important caves. Because a great deal of deterioration has taken place within this cave, a large amount of research has been carried out on the environmental effects of these changes. Results show that the east wall has been least affected by moisture, solar radiation, and daylight compared to the other walls and ceiling. However, the effects of deterioration, including scratches, detachment, and discoloration, are nevertheless seen on the east wall. In this study, we investigated the effects of adhesion and the collision of windblown sand as factors contributing to the deterioration of the east wall. We conclude that sand blown by high-velocity wind has led to detachment, flaking, and losses to the east wall including fading of the paintings.

Download Full-text