再毕业设计做模型中要应用到SHELL181单元，那么这个单元有什么好处谁能具体的告诉我下，我有英文但是有的地方翻译不通。或者谁能帮我翻译一下~谢谢~SHELL181issuitableforanalyzingth...

再毕业设计做模型中要应用到SHELL181单元，那么这个单元有什么好处谁能具体的告诉我下，我有英文但是有的地方翻译不通。或者谁能帮我翻译一下~谢谢~

SHELL181 is suitable for analyzing thin to moderately-thick shell structures. It is a 4-node element with six degrees of freedom at each node: translations in the x, y, and z directions, and rotations about the x, y, and z-axes. (If the membrane option is used, the element has translational degrees of freedom only). The degenerate triangular option should only be used as filler elements in mesh generation.

SHELL181 is well-suited for linear, large rotation, and/or large strain nonlinear applications. Change in shell thickness is accounted for in nonlinear analyses. In the element domain, both full and reduced integration schemes are supported. SHELL181 accounts for follower (load stiffness) effects of distributed pressures.

SHELL181 may be used for layered applications for modeling laminated composite shells or sandwich construction. The accuracy in modeling composite shells is governed by the first order shear deformation theory (usually referred to as Mindlin-Reissner shell theory).

SHELL181 can be used instead of SHELL43 for many problems that have convergence difficulty with SHELL43. See SHELL181 in the ANSYS, Inc. Theory Reference for more details about this element.

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