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压力循环载荷怎么加?

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发表于 2016-5-21 10:44 | 显示全部楼层 |阅读模式

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我对导管施加压力循环载荷,怎么施加?
这是属于低周疲劳分析吧!abaqus里如何设置?求指教!

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发表于 2016-5-21 11:10 | 显示全部楼层
 楼主| 发表于 2016-5-31 09:34 | 显示全部楼层
发表于 2016-5-31 11:05 | 显示全部楼层
  1. **
  2. **
  3. ** ASSEMBLY
  4. **
  5. *Assembly, name=Assembly
  6. **
  7. *Instance, name=Beam-1, part=Beam
  8. *End Instance
  9. **
  10. *Nset, nset=_PickedSet4, internal, instance=Beam-1
  11. 1, 13
  12. *Nset, nset=_PickedSet17, internal, instance=Beam-1
  13. 2,
  14. *Nset, nset=_PickedSet18, internal, instance=Beam-1
  15. 3,
  16. *Nset, nset=_PickedSet19, internal, instance=Beam-1
  17. 4,
  18. *Nset, nset=_PickedSet20, internal, instance=Beam-1
  19. 5,
  20. *Nset, nset=_PickedSet21, internal, instance=Beam-1
  21. 6,
  22. *Nset, nset=_PickedSet22, internal, instance=Beam-1
  23. 7,
  24. *Nset, nset=_PickedSet23, internal, instance=Beam-1
  25. 8,
  26. *Nset, nset=_PickedSet24, internal, instance=Beam-1
  27. 9,
  28. *Nset, nset=_PickedSet25, internal, instance=Beam-1
  29. 10,
  30. *Nset, nset=_PickedSet26, internal, instance=Beam-1
  31. 11,
  32. *Nset, nset=_PickedSet27, internal, instance=Beam-1
  33. 12,
  34. *Nset, nset=_PickedSet28, internal, instance=Beam-1, generate
  35. 1, 121, 1
  36. *Elset, elset=_PickedSet28, internal, instance=Beam-1, generate
  37. 1, 120, 1
  38. *End Assembly
  39. *Amplitude, name=Amp-004
  40. 0., 0., 0.04, 1.
  41. *Amplitude, name=Amp-Dead+CDgk
  42. 0., 0., 10., 1.
  43. **
  44. ** MATERIALS
  45. **
  46. *Material, name=Q345
  47. *Density
  48. 8e-09,
  49. *Elastic
  50. 200000., 0.3
  51. **
  52. ** BOUNDARY CONDITIONS
  53. **
  54. ** Name: Fix Type: 位移/转角
  55. *Boundary
  56. _PickedSet4, 1, 1
  57. _PickedSet4, 2, 2
  58. ** ----------------------------------------------------------------
  59. **
  60. ** STEP: Step-Dead+CDgk
  61. **
  62. *Step, name=Step-Dead+CDgk
  63. *Static
  64. 1., 1., 1e-05, 1.
  65. **
  66. ** LOADS
  67. **
  68. ** Name: Load-CDgk Type: Line load
  69. *Dload
  70. _PickedSet28, PY, -21.
  71. ** Name: Load-Dead Type: Gravity
  72. *Dload
  73. , GRAV, 9800., 0., -1.
  74. **
  75. ** OUTPUT REQUESTS
  76. **
  77. *Restart, write, frequency=0
  78. **
  79. ** FIELD OUTPUT: F-Output-1
  80. **
  81. *Output, field, frequency=10
  82. *Node Output
  83. CF, RF, U
  84. *Element Output, directions=YES
  85. LE, PE, PEEQ, PEMAG, S, SF
  86. *Contact Output
  87. CDISP, CSTRESS
  88. **
  89. ** HISTORY OUTPUT: H-Output-1
  90. **
  91. *Output, history, variable=PRESELECT, frequency=10
  92. *End Step
  93. ** ----------------------------------------------------------------
  94. **
  95. ** STEP: Step-1m
  96. **
  97. *Step, name=Step-1m, amplitude=RAMP
  98. *Dynamic
  99. 0.04,0.04,4e-07
  100. **
  101. ** LOADS
  102. **
  103. ** Name: Load-1m Type: Concentrated force
  104. *Cload
  105. _PickedSet17, 2, -416000.
  106. **
  107. ** OUTPUT REQUESTS
  108. **
  109. *Restart, write, frequency=0
  110. **
  111. ** FIELD OUTPUT: F-Output-1
  112. **
  113. *Output, field
  114. *Node Output
  115. CF, RF, U
  116. *Element Output, directions=YES
  117. LE, PE, PEEQ, PEMAG, S, SF
  118. *Contact Output
  119. CDISP, CSTRESS
  120. **
  121. ** HISTORY OUTPUT: H-Output-1
  122. **
  123. *Output, history, variable=PRESELECT
  124. *End Step
  125. ** ----------------------------------------------------------------
  126. **
  127. ** STEP: Step-2m
  128. **
  129. *Step, name=Step-2m, amplitude=RAMP
  130. *Dynamic
  131. 0.04,0.04,4e-07
  132. **
  133. ** LOADS
  134. **
  135. ** Name: Load-1m Type: Concentrated force
  136. *Cload, op=NEW
  137. ** Name: Load-2m Type: Concentrated force
  138. *Cload, op=NEW
  139. _PickedSet18, 2, -416000.
  140. **
  141. ** OUTPUT REQUESTS
  142. **
  143. *Restart, write, frequency=0
  144. **
  145. ** FIELD OUTPUT: F-Output-1
  146. **
  147. *Output, field
  148. *Node Output
  149. CF, RF, U
  150. *Element Output, directions=YES
  151. LE, PE, PEEQ, PEMAG, S, SF
  152. *Contact Output
  153. CDISP, CSTRESS
  154. **
  155. ** HISTORY OUTPUT: H-Output-1
  156. **
  157. *Output, history, variable=PRESELECT
  158. *End Step
  159. ** ----------------------------------------------------------------
  160. **
  161. ** STEP: Step-3m
  162. **
  163. *Step, name=Step-3m, amplitude=RAMP
  164. *Dynamic
  165. 0.04,0.04,4e-07
  166. **
  167. ** LOADS
  168. **
  169. ** Name: Load-2m Type: Concentrated force
  170. *Cload, op=NEW
  171. ** Name: Load-3m Type: Concentrated force
  172. *Cload, op=NEW
  173. _PickedSet19, 2, -416000.
  174. **
  175. ** OUTPUT REQUESTS
  176. **
  177. *Restart, write, frequency=0
  178. **
  179. ** FIELD OUTPUT: F-Output-1
  180. **
  181. *Output, field
  182. *Node Output
  183. CF, RF, U
  184. *Element Output, directions=YES
  185. LE, PE, PEEQ, PEMAG, S, SF
  186. *Contact Output
  187. CDISP, CSTRESS
  188. **
  189. ** HISTORY OUTPUT: H-Output-1
  190. **
  191. *Output, history, variable=PRESELECT
  192. *End Step
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参考一下,希望对你有帮助!
发表于 2018-10-6 16:02 | 显示全部楼层
Jillian 发表于 2016-5-21 11:10
参考:http://forum.vibunion.com/thread-71714-1-1.html

谢谢分享,,
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