Toughness-dominated near-surface hydraulic fracture experiments

Physics & Astronomy

• toughness 100%
• hydraulics 98%
• fracturing 17%
• radii 16%
• fluid injection 11%
• injection 9%
• Bouguer law 9%
• fluid pressure 8%
• transparence 8%
• internal pressure 8%
• electromagnetic absorption 6%
• confining 6%
• examination 5%
• scaling 4%
• propagation 3%

Engineering & Materials Science

• Toughness 88%
• Hydraulics 72%
• Experiments 33%
• Light absorption 10%
• Daylighting 9%
• Fluids 8%
• Remediation 8%
• Hazardous materials spills 8%
• Hydraulic fracturing 8%
• Data structures 5%

Earth & Environmental Sciences

• hydraulic fracturing 91%
• daylight 22%
• fluid injection 12%
• caving 11%
• fluid pressure 10%
• modeling 7%
• remediation 7%
• test 7%
• material 3%
• rate 3%
• effect 2%