VM-NR1677-01-5

VM-NR1677-01-5
NUREG/CR-1677: Volume 1, Benchmark Problem No. 5

Overview

Reference:P.Bezler, M. Hartzman & M. Reich, Dynamic Analysis of Uniform Support Motion Response Spectrum Method, (NUREG/CR-1677), Brookhaven National Laboratory, August 1980, Problem 1, Pages 218-262.
Analysis Type(s):
Modal analysis (ANTYPE = 2)
Spectral analysis (ANTYPE = 8)
Element Type(s):
3D 3-Node pipe (PIPE289)
3D 3-Node elbow (ELBOW290)
Spring-Damper Element (COMBIN14)
Mass element (MASS21)
Input Listing:

Test Case

For test case description, problem sketch, material properties, geometry properties and loadings refer to

VM-NR1677-01-5-a

Results Comparison

Table 107: Frequencies Obtained from Modal Solution

ModeFrequency
14.374
25.335
310.525
412.112
517.056
619.626
723.188
827.248
931.833
1040.841
1143.669

Table 108: Maximum Displacements and Rotations Obtained from Spectrum Solve

Result_NodeValue
UX at node540.404
UY at node837.887e-02
UZ at node810.187
ROTX at node20 6.508e-04
ROTY at node84.695e-03
ROTZ at node102.426e-04

Table 109: Element Forces and Moments obtained from Spectrum Solve

ResultMAPDL
Element 20
PX(I)2476.8
VY(I)377.71
VZ(I)520.84
TX(I)20244.0
MY(I)36322.0
MZ(I)13030.0
  
PX(J) 68.889
VY(J) 4.8473
VZ(J) 0.513
TX(J) 0.423
MY(J) 6.751
MZ(J)97.662
Element 50
PX(I) 2531.8
VY(I) 326.97
VZ(I) 519.29
TX(I) 20648.0
MY(I) 31772.0
MZ(I) 10390.0
  
PX(J) 2124.0
VY(J) 1419.0
VZ(J) 520.0
TX(J) 23581.0
MY(J) 29556.0
MZ(J)11987/0

Note:  PX (I) and PX (J) = Section axial force at node I and J

VY (I) and VY (J) = Section shear forces along Y direction at node I and J

VZ (I) and VZ (J) = Section shear forces along Z direction at node I and J

TX (I) and TX (J) = Section torsional moment at node I and J

MY (I) and MY (J) = Section bending moments along Y direction at node I and J

MZ (I) and MZ (J) = Section bending moments along Z direction at node I and J