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Download LS-DYNA Structured User's Manual Version 960
Transcript
Material/Part Definitions Columns Quantity Format 51-60 r-rotational constraint for local coordinate system EQ.0.0: Coordinate ID rotates about r axis with nodes. EQ.1.0: Rotation is constrained about the r-axis E10.0 61-70 s-rotational constraint for local coordinate system EQ.0.0: Coordinate ID rotates about s axis with nodes. EQ.1.0: Rotation is constrained about the s-axis E10.0 71-80 t-rotational constraint for local coordinate system EQ.0.0: Coordinate ID rotates about t axis with nodes. EQ.1.0: Rotation is constrained about the t-axis E10.0 Negative values for the cable offset will make the cable slack in its initial configuration. Positive values will induce a tensile force when the calculation begins. Negative offset values that exceed the length of the cable will reset internally to the cable length. Nodal masses are calculated from the volume and density of the element. The local coordinate system rotates as the nodal points that define the beam rotate. In some cases this may lead to unexpected results if the nodes undergo significant rotation. Shell Element Section Card (IARB=1) 1 of 2 (4E10.0,I5) Define for Shell and Membrane Elements Columns Quantity Format 1-10 Shear factor (default = 1.0) E10.0 11-20 Number of through shell thickness integration points, NIP EQ.1.0: 1 point (membrane) EQ.2.0: 2 point EQ.3.0: 3 point EQ.4.0: 4 point EQ.5.0: 5 point GT.5.0: trapezoidal or user defined rule E10.0 21-30 Printout option EQ.1.0: average resultants and fiber lengths EQ.2.0: resultants at plan points and fiber lengths EQ.3.0: resultants, stresses at all points, fiber lengths E10.0 31-40 Quadrature rule LT.0.0: absolute value is specified rule number EQ.0.0: Gauss (up to five points are permitted) EQ.1.0: trapezoidal E10.0 3.44 LS-DYNA Version 960
