Abaqus Volume II: I–Z Manual de usuario descargar pdf (Pagina 514)

SURFACE BEHAVIOR

Repeat this data line in ascend ing order of overclosure value as often as necessary to deﬁne

the overclosure as a function of pressure. A minimum of two data lines are required. The

pressure-overclosure relationship is extrapolated beyond the last overclosure point by continuing the

same slope (see Figure 18.47–3).

Exponential pressure-overclosure relationship

Figure 18.47–1 Exponential pressure-overclosure relationship.

= segment number

= default stiffness

= element length

= initial scale factor

= geometric scale factor

= overclosure factor

= r L = overclosure measur

Figure 18.47–2 Scale factor pressure-overclosure relationship.

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Abaqus Volume II: I–Z Manual de usuario Pagina 514