X-RAY CT APPLICATIONS

Transcription

1 MONASH ENGINEERING X-RAY CT APPLICATIONS DR ASADUL HAQUE DEPARTMENT OF CIVIL ENGINEERING

2 CONTENTS DESCRIPTION PAGE 1 XMFIG FACILITY PITTING CORROSION IN STEEL 5 3 FIBRE REINFORCED SOIL 6 4 PROPPANT SUPPORTED FRACKING 7 5 A SAND PARTICLE UNDER 1D COMPRESSION 8 6 FIBRE REINFORCED PIPE GFRP AND CFRP BARS CEMENT TREATED SANDS SOIL MIXED COLUMN EFFECT OF LIME-GGBS ADDITIVES ON CLAY STRUCTURE MICROSTRUCTURE OF COFFEE ROASTER ZEBRA FISH SKELETON AND MUSCLE MICROSTRUCTURE OF MILK GRANULES CONCRETE EXPOSED TO HEATING AND COOLING ROCK SUBJECTED TO HEATING AND COOLING ADDITIVELY MANUFACTUED LATTICE STRUCTURE AND METAL PART DEFECTS IN BOTTLE CAPS REFERENCES AND CONTACT 26 2

3 X-RAY MICROSCOPY FACILITY FOR IMAGING GEO-MATERIALS XMFIG is an ARC-LIEF funded facility (LE ) Organisations involved: Dr Asadul Haque, Facility Manager & Chief Investigator, Department of Civil Engineering, Monash University XMFIG Capabilities Feb 2018, Monash University. All images captured, processed & analysed by Dr Haque. 3

4 Triax-S (1.5MPa) Triax-R (20MPa) 1D-compression (90MPa) CT5000-Unconfined (5kN) AN OVERVIEW OF X-RAY MICROSCOPY FACILITY AT MONASH X-ray source (160kV, 10W) VersaXRM-520 Lenses (0.4x, 4x, 20x, 40x) Xradia 520versa-slaes Key features: High spatial resolutions (0.7m) Sample size < 100mm & Mass < 15kg In situ imaging capability Unconfined, onedimensional and triaxial loading rigs Loading rigs D=10mm, L=20mm D=35mm, L=70mm D=8mm, L=4mm D=30mm, L=15mm 4

5 PITTING CORROSION IN STEEL Initial pit 3D-PIT GROWTH PIT 30-day pit RESULTS Exposure (days) Feret breadth 3D (m) Feret length 3D (m) Volume 3D (m 3 ) x x XZ VIEW

6 COCONUT FIBRE REINFORCED SOIL Fibre distributions Fibre orientations-xz 6

7 PROPPANT SUPPORTED FRACKING PROPPANT IN FRACTURED ROCK LABELLED FRACTURE 7

8 A SAND PARTICLE UNDER UNIAXIAL LOADING POINT A POINT O POINT B POINT O INITIAL-PEAK STATES LOAD-DISP. PLOT DISP. FIELDS-XDVC INITIAL IMAGE 8

9 SANDS FIBRE CRACK DEFECTS IN FRP PIPES RENDERED VOLUME SECTIONS XY-XZ-YZ PLAN VIEW SECTIONAL VIEW-YZ 9

10 DEFECTS IN FRP PIPES Grey Image Voids-labelled Resin-labelled Segmented Fibre & Sand-labelled ROI-3D view 10

11 BASALT FIBRE REINFORCED POLYMER (BFRP) BAR SEGMENTED FIBRE FIBRE ANALYSIS-XFIBER 11 3D FIBRE ORIENTATION

12 CARBON FIBRE REINFORCED POLYMER (CFRP) BAR GREY IMAGE SEGMENTED FIBRE FIBRE ANALYSIS-XFIBER 3D FIBRE ORIENTATION 12

13 CEMENT TREATED SAND UNDER UNIAXIAL LOADING SAND-CEMENT-VOID (initial image) SAND-CEMENT-VOID (peak-load) CRACK GREY IMAGE SECTIONAL VIEW 13

14 7-days curing (cement vol.=10.8%) 14-days curing (cement vol.=11.1%) 30-days curing (cement vol.=14%) MICROSTRUCTURAL EVOLUTION IN CEMENT TREATED SAND VOID CEMENT SAND 14

15 SOIL MIXED COLUMN (SMC) NO LOAD SMC INITIAL STATE CLAY SMC AT PEAK LOAD DEFORMED STATE Soil-SMC-failure plane SMC-Failure plane 15

16 ACID SULPHATE SOIL STABILISED WITH LIME-GGBS 15L15S-1day 15L10S-1day 0L0S-1day 16

17 Slice number MICROSTRUCTURE OF COFFEE ROASTER Pore network EqDiameter distributions (% particles) Coffee grounds Particle size (microns) Voids Porosity distributions Top Greyscale image Porosity (%) Bottom 17

18 ZEBRA FISH FOR BIOMEDICAL SCIENCE RESEARCH GREY IMAGE SKELETON MUSCLE-FIN SKELETON-MUSCLE ROI 18

19 MICROSTRUCTURE OF MILK GRANULES NEIGHBOURHOOD ROI XY-VIEW 19

20 EFFECT OF COOLING ON HEATED CONCRETE QUICK (100-pores) GREY QUICK (Porosity=4.4%) Largest 100-pores QUICK COOLING SLOW COOLING SLOW (Porosity=3.5%) SLOW (100-pores) 20

21 DURABILITY OF CONCRETE 21

22 SILTSTONE ROCK SUBJECTED TO COOLING POROSITY VARIATION SLOW SLOW COOLING QUENCHING GREY-SLOW GREY+VOIDS XY-VOIDS 22

23 Separated 3D PRINTED LATTICE STRUCTURE Grey image Labelled volumes Labelled Joint Grey 23

24 100-Large voids ADDITIVE MANUFACTURED METAL PART Porosity distribution Voids-labelled Grey image Metal 1 Metal 2 Pore XY-Grey XY-Voids 24

25 DEFECTS IN BOTTLE CAP Metal cap Plastic cap Thin resin Good resin BOTTLE CAP Bad porous resin 25

26 REFERENCES & CONTACT DETAILS ARC-LIEF (2013). X-ray Microscopy Facility for Imaging Geomaterials (XMFIG). AVIZO v (2017). Image processing software with XFIBER and XDVC add-ins. XMFIG datasets ( ): Select datasets of samples imaged at XMFIG. Monash University, Australia. Contact details: Dr Asadul Haque, Department of Civil Engineering, 23 College Walk, Monash University PH: (03) ; E: www: XMFIG 26