3.5 STRESS PARAMETER FILE Z88I3.TXT

Mind the following format: [Long] = 4 bytes or 8 bytes integer number

File only consists of only one line:
1st value: For isoparametric elements No. 1, 7, 8, 10, 11, 12, 14, 15, 16, 17, 18, 19, 20:

Value of the integration order INTORD [Long]

Valid is:
0 = Calculation of stresses into the corner nodes, reduced stress calculation not possible.

For isoparametric elements No.1, 7, 8, 10, 11, 12, 19, 20:
1, 2, 3 or 4 (i.e. N*N) = Calculation of stresses into the Gauss points. Reduced stress calculation is possible. A good value is 3 (= 3*3 Gauss points). For element type No.1 and No.20 a value of 2 could be fine. For type No.19, a value of 4 (= 4*4 Gauss points) is recommended.

For isoparametric elements No.14, 15, 18:
3, 7 or 13 (i.e. N) = Calculation of stresses into the Gauss points. Reduced stress calculation is possible. A good value is 7 (= 7 Gauss points). For type No.18, a value of 3, i.e. 3 Gauss points, will do.

For isoparametric elements No.16, 17:
1, 4 or 5 (i.e. N) = Calculation of stresses into the Gauss points. Reduced stress calculation is possible. A good value is 5 (= 5 Gauss points). For element type No.17 a value of 1 could be fine.

This 1st value has no meaning for element types No.2, 3, 4, 5, 6, 9 and 13. However, please enter a value of 1 to satisfy the filechecker Z88V.
2nd value: For the plane stress elements No.3, 7, 11 and 14: KFLAG [Long]
0 = standard stress calculation
1 = additional calculation of the radial and tangential stresses

3rd value: Choice of the reduced stress hypothesis: ISFLAG [Long]
0 = no calculation of the reduced stresses
1 = von Mises stresses

2 = principal or Rankine stresses

3 = Tresca stresses

Example 1: The stress processor Z88D is supposed to calculate for a structure of Plane Stress Elements No.7 the stresses for every finite element into 3*3 Gauss points: INTORD = 3. In addition to this calculation of standard-stresses a calculation of radial and tangential stresses is supposed to be run, KFLAG = 1. Furthermore compute von Mises stresses: ISFLAG = 1. Thus : 3 1 1

Example 2: The stress processor Z88D is supposed to compute only the stresses of the corner nodes for every f inite element No.7 . Only standard-stress calculation, thus KFLAG = 0. Do not compute von Mises stresses, thus ISFLAG = 0. Thus : 0 0 0