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Compression behavior of loose wet granular materials: experiment and discrete numerical simulation

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Thesis Than VinhDu pdf ❯◆■❱❊❘❙■❚➱ )❆❘■❙✲❊❙❚ ➱❈❖▲❊ ❉❖❈❚❖❘❆▲❊ ❙❈■❊◆❈❊ ■◆●➱◆■❊❘■❊ ❊❚ ❊◆❱■❘❖◆◆❊▼❊◆❚ ❚❍➮❙❊ ♣567❡♥ 6❡ ♣♦✉5 ❧✬♦❜ ❡♥ ✐♦♥ ❞✉ ❞✐♣❧B♠❡ ❞♦❝ ❡✉5 ❞❡ ▲✬❯◆■❱❊❘❙■❚➱ +❆❘■❙✲❊❙❚ ❙♣6❝✐❛❧✐ 6✿ ●!♦#❡❝❤♥✐)✉❡ ♣[.]

❯◆■❱❊❘❙■❚➱ )❆❘■❙✲❊❙❚ ➱❈❖▲❊ ❉❖❈❚❖❘❆▲❊ ❙❈■❊◆❈❊ ■◆●➱◆■❊❘■❊ ❊❚ ❊◆❱■❘❖◆◆❊▼❊◆❚ ❚❍➮❙❊ ♣567❡♥:6❡ ♣♦✉5 ❧✬♦❜:❡♥:✐♦♥ ❞✉ ❞✐♣❧B♠❡ ❞♦❝:❡✉5 ❞❡ ▲✬❯◆■❱❊❘❙■❚➱ +❆❘■❙✲❊❙❚ ❙♣6❝✐❛❧✐:6✿ ●!♦#❡❝❤♥✐)✉❡ ♣❛5 ❱✐♥❤ ❉✉ ❚❍❆◆ ❙✉❥❡: ❞❡ ❧❛ :❤I7❡ ✿ ❈♦♠♣$❡&&✐♦♥ ❜❡❤❛✈✐♦$ ♦❢ ❧♦♦&❡ ✇❡0 ❣$❛♥✉❧❛$ ♠❛0❡$✐❛❧&✿ ❡①♣❡$✐♠❡♥0 ❛♥❞ ❞✐&❝$❡0❡ ♥✉♠❡$✐❝❛❧ &✐♠✉❧❛0✐♦♥ ❚❤I7❡ 7♦✉:❡♥✉❡ ❧❡ ✷✻ ❛✈5✐❧ ✷✵✶✼ ❞❡✈❛♥: ❧❡ ❥✉5② ❝♦♠♣♦76 ❞❡ ✿ ●❛6❧ ❈❖▼❇❊ ❏❡❛♥✲❨✈❡@ ❉❊▲❊◆◆❊ ❇❡ABA❛♥❞ ❋❘❆◆➬❖■❙ ❏❡❛♥✲◆♦6❧ ❘❖❯❳ ❏❡❛♥✲▼✐❝❤❡❧ +❊❘❊■❘❆ ❆♥❤ ▼✐♥❤ ❚❆◆● )5♦❢❡77❡✉5✱ ❯♥✐✈❡57✐:6 ●5❡♥♦❜❧❡ ❆❧♣❡7 ❉✐5❡❝:❡✉5 ❞❡ 5❡❝❤❡5❝❤❡✱ ■◆❘❆ )5♦❢❡77❡✉5✱ ❯♥✐✈❡57✐:6 ▲✐❜5❡ ❞❡ ❇5✉①❡❧❧❡7 ❈❤❡5❝❤❡✉5✱ ■❋❙❚❚❆❘ ❈❤❡5❝❤❡✉5✱ ➱❝♦❧❡ ❞❡7 )♦♥:7 )❛5✐7❚❡❝❤ ❈❤❡5❝❤❡✉5✱ ➱❝♦❧❡ ❞❡7 )♦♥:7 )❛5✐7❚❡❝❤ )567✐❞❡♥: ❘❛♣♣♦5:❡✉5 ❘❛♣♣♦5:❡✉5 ❊①❛♠✐♥❛:❡✉5 ❊①❛♠✐♥❛:❡✉5 ❉✐5❡❝:❡✉5 ❞❡ :❤I7❡ ❆❝❦♥♦✇❧❡❞❣♠❡♥+ ❈❡ "#❛✈❛✐❧ ❞❡ "❤*+❡ ♥✬❛✉#❛✐" /"#❡ ♣♦++✐❜❧❡ +❛♥+ ❛♣♣✉✐ ❞❡ ❜❡❛✉❝♦✉♣ ❞❡ ❣❡♥+✳ ❏❡ "✐❡♥+ #❡♠❡#❝✐❡# ❞❛♥+ ❝❡""❡ ♣❛❣❡ ✉♥ ❝❡#"❛✐♥ ♥♦♠❜#❡ ❞❡ ♣❡#♦♥♥❡+ 9✉✐ ♠✬♦♥" ❛✐❞: ♠❡♥❡# ❜✐❡♥ ❝❡ "#❛✈❛✐❧✳ ❏❡ "✐❡♥+ "♦✉" ❞✬❛❜♦#❞ #❡♠❡#❝✐❡# ▼♦♥+✐❡✉# ●❛=❧ ❈♦♠❜❡✱ 9✉✐ ♠✬❛ ❢❛✐" ❧✬❤♦♥♥❡✉# ❞❡ ♣#:+✐❞❡# ❧❡ ❥✉#② ❞❡ ♠❛ +♦✉"❡♥❛♥❝❡ ❞❡ "❤*+❡ ❛✐♥+✐ 9✉✬❛ ❡①❛♠✐♥: ♠♦♥ "#❛✈❛✐❧✳ ❙❡+ #❡♠❛#9✉❡+ ❡" 9✉❡+"✐♦♥+ +♦♥" "#*+ ✐♥":#❡++❛♥"❡+ ❡" ❝♦♥+"#✉❝"✐✈❡+✳ ❏❡ ✈♦✉❞#❛✐+ #❡♠❡#❝✐❡# ✈✐✈❡♠❡♥" ▼❡++✐❡✉#+ ❏❡❛♥✲❨✈❡+ ❉❡❧❡♥♥❡ ❡" ❇❡#"#❛♥❞ ❋#❛♥I♦✐+ 9✉✐ ♦♥" ❛❝❝❡♣": ❧❛ ❧♦♥❣✉❡ ❡" ❧♦✉#❞❡ "J❝❤❡ ❞✬/"#❡ #❛♣♣♦#"❡✉#+ ❞❡ ♠❛ "❤*+❡✳ ▲❡✉#+ #❡♠❛#9✉❡+ ❢#✉❝"✉❡✉+❡+ ❡" ♣#:+✐❡✉+❡+ ♠✬♦♥" ❛✐❞: ❛♠:❧✐♦#❡# ❧❡ ♥✐✈❡❛✉ +❝✐❡♥"✐✜9✉❡ ❞❡ ❝❡ "#❛✈❛✐❧✳ ❏❡ +♦✉❤❛✐"❡ ❡①♣#✐♠❡# ♠❛ ♣#♦❢♦♥❞❡ ❣#❛"✐"✉❞❡ ♠❡+ "#♦✐+ ❞✐#❡❝"❡✉#+ ❞❡ "❤*+❡ ❆♥❤ ▼✐♥❤ ❚❛♥❣✱ ❏❡❛♥✲◆♦=❧ ❘♦✉① ❡" ❏❡❛♥✲▼✐❝❤❡❧ Q❡#❡✐#❛ ♣♦✉# ❧❡✉# ❝♦♥✜❛♥❝❡✱ ❧❡✉# +✉✐✈✐ ❡" ❧❡✉# ❣❡♥"✐❧❡++❡✳ ▼❡#❝✐ ❏❡❛♥✲▼✐❝❤❡❧ ♣♦✉# "❡+ ❝♦♥+❡✐❧+ ♣#:❝✐❡✉① ❡" "♦♥ ❛✐❞❡✳ ▼❡#❝✐ +✐♥❝*#❡♠❡♥" ❏❡❛♥✲◆♦=❧ ♣♦✉# "♦♥ ♠♦❞*❧❡ ❞❡ ❧❛ +✐♠✉❧❛"✐♦♥✱ "❡+ ❝♦♥+❡✐❧+ ♣#:❝✐❡✉①✱ "❡+ ❡♥❝♦✉#❛❣❡♠❡♥"+ ❛✐♥+✐ 9✉❡ "❛ ♣❛"✐❡♥❝❡ ❞❛♥+ ❧❡+ ♠♦♠❡♥"+ 9✉❡ ❥❡ ♥✬❛✐ ♣❛+ ♣✉ ❜✐❡♥ ❝♦♠♣#❡♥❞#❡ "♦♥ ♠♦❞*❧❡✳ ❙✐ ❝❡ "#❛✈❛✐❧ ❡+" ✉♥❡ #:✉++✐"❡✱ ❝✬❡+" ✉♥❡ "#*+ ❣#❛♥❞❡ ♣❛#"✐❡ ❣#J❝❡ "♦✐✳ ❯♥ ❣#❛♥❞ ♠❡#❝✐ ▼✐♥❤ ♣♦✉# ❛✈♦✐# ❛❝❝❡♣": ♠❛ ❞❡♠❛♥❞❡ ❢❛✐#❡ ♠❛ "❤*+❡ ❧✬➱❝♦❧❡ ❞❡+ Q♦♥"+ Q❛#✐+❚❡❝❤✳ ❈✬❡+" ✉♥ ❣#❛♥❞ ❤♦♥♥❡✉# ♣♦✉# ♠♦✐✳ ❚✉ ♠✬❛+ ❜❡❛✉❝♦✉♣ ❛✐❞:✱ "✉ ♠✬❛+ ❣✉✐❞: ❡" ❛❝❝♦♠♣❛❣♥: "♦✉" ❧❡ ❧♦♥❣ ❞❡ ❧✬:❧❛❜♦#❛"✐♦♥ ❞❡ ❝❡ "#❛✈❛✐❧✳ ❚❡+ +♦✉"✐❡♥+ ❡" ❡♥❝♦✉#❛❣❡♠❡♥"+ ♠✬♦♥" ♣❡#♠✐+ ♠❡♥❡# ❜✐❡♥ ❝❡ "#❛✈❛✐❧✳ ❏❡ ✈♦✉❞#❛✐+ :❣❛❧❡♠❡♥" ❛❞#❡++❡# ♠❡+ #❡♠❡#❝✐❡♠❡♥"+ ❛✉① ▼❡++✐❡✉#+ ▼✐❝❤❡❧ ❇♦#♥❡#" ❡" Q❛"#✐❝❦ ❆✐♠❡❞✐❡✉ ❞❡ ❧✬:9✉✐♣❡ ♠✉❧"✐✲:❝❤❡❧❧❡+✱ 9✉✐ ♠✬♦♥" ❛✐❞: ❞❡ ❢❛✐#❡ ❞❡+ ❡++❛✐+ ❞❡ ♠✐❝#♦✲ "♦♠♦❣#❛♣❤✐❡ ❛✉① #❛②♦♥+ ❳✳ ▲❡✉#+ ❝♦♥+❡✐❧+ +♦♥" "#*+ ✉"✐❧❡+ ♣♦✉# ❧❛ ♣❛#"✐❡ ❞✉ "#❛✐"❡♠❡♥" ❞✬✐♠❛❣❡#✐❡✳ ❏❡ "✐❡♥+ ❛✉++✐ #❡♠❡#❝✐❡# ❧✬:9✉✐♣❡ "❡❝❤♥✐9✉❡ ❞✉ ❈❊❘▼❊❙✿ ❊♠♠❛♥✉❡❧✱ ❍♦❝✐♥❡✱ ❳❛✈✐❡#✱ ❇❛♣"✐+"❡✱ ▼❛#✐♥❡ ♣♦✉# ❧❡✉#+ ❛✐❞❡+ ❢❛✐#❡ ❞❡+ ❡++❛✐+ ❡♥ ❧❛❜♦#❛"♦✐#❡✳ ❏❡ ♥✬♦✉❜❧✐❡ ♣❛+✱ ♥♦♥ ♣❧✉+✱ ❞❡ #❡♠❡#❝✐❡# ❧❡ ▼✐♥✐+"*#❡ ❞❡ ❧✬➱❞✉❝❛"✐♦♥ ❡" ❧❛ ❋♦#♠❛"✐♦♥ ❞✉ ❱✐❡"♥❛♠ ♣♦✉# ❛✈♦✐# ✜♥❛♥❝: ❝❡""❡ "❤*+❡ ❛✐♥+✐ 9✉❡ ❧❡+ +♦✉"✐❡♥+ ❞❡ ♠❡+ ❝♦❧❧*❣✉❡+ ❞❛♥+ ❧❡ ❞:♣❛#"❡♠❡♥" ❞❡ ❣:♥✐❡ ❝✐✈✐❧❡ ❞❡ ❧✬■♥+"✐"✉" ❯♥✐✈❡#+✐"❛✐#❡ ❞❡ ❚❡❝❤♥♦❧♦❣✐❡ ❞❡ ❧✬❯♥✐✈❡#+✐": ❞❡ ❉❛♥❛♥❣✳ ❏✬❛✐♠❡#❛✐+ #❡♠❡#❝✐❡# "♦✉+ ❧❡+ ❝❤❡#❝❤❡✉#+ ❡" ❧❡+ ❛♠✐+ ❞❛♥+ ❧✬:9✉✐♣❡ ❈❊❘▼❊❙ ♣♦✉# ✐ ❆❝❦♥♦✇❧❡❞❣♠❡♥+ ✐✐ ❧✬❛♠❜✐❛♥❝❡ ❞❡ *+❛✈❛✐❧ ❡* ❧❡- *+.- ❜♦♥- ♠♦♠❡♥*- 0✉✬♦♥ ❛ ❡✉ ❡♥-❡♠❜❧❡✳ ▼❡- +❡♠❡+❝✐❡♠❡♥*✈♦♥* ❡♥-✉✐*❡ ♠❡- ❛♠✐- ✈✐❡*♥❛♠✐❡♥- ❛✈❡❝ 0✉✐ ❥✬❛✐ ♣❛+*❛❣8 ❞❡- ♠♦♠❡♥*- ✐♥♦✉❜❧✐❛❜❧❡- ❞❛♥❧❛ ✈✐❡ 0✉♦*✐❞✐❡♥♥❡✳ ❏✬❛✉+❛✐- ✉♥❡ ❣+❛♥❞❡ +❡❝♦♥♥❛✐ ❛♥❝❡ ♠❡- ♣❛+❡♥*-✱ ♠❡- ❣+❛♥❞- ❢+.+❡-✱ ♠❛ ❣+❛♥❞❡ -

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