Specific soil material properties supported by CivilFEM are described hereafter:
Specific Properties
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KPLA
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Behavior type:
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0
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Elastic
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1
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Drucker-Prager
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γd
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Dry specific weight
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γs
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Solid specific weight:
γs = γd /(1-n)
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γsat
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Saturated specific weight:
γsat = (γs + γw *e) / (1+e) = γs *(1-n)+ γw *n
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γsub
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Submerged specific weight:
γsub = γsat - γw
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γap
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Apparent specific weight:
γap = γd *(1+W)
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γw
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Water specific weight
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ρd
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Dry density
ρd = γd /g
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ρs
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Solid density
ρs = γs /g
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ρsat
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Saturated density
ρsat = γsat /g
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ρsub
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Submerged density
ρsub = γsub /g
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ρap
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Apparent density
ρap = γap /g
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ρrel
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Relative density (by default 0.5)
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n
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Porosity (1 > n ≥ 0)
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e
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Void ratio
e = n/(1-n)
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W
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Moisture content.
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Sw
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Saturation degree
Sw = W* γs / (e* γw) = W* γd / (n* γw)
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PHIDPeff
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Angle of effective internal friction for Drucker-Prager.
90º > PHIDPeff ≥ 0º
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cDPeff
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Effective Cohesion for Drucker-Prager. cDPeff ≥ 0
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