Characterization of Nonsymmetric Forms of Fully Orthotropic Laminates
Characterization of Nonsymmetric Forms of Fully Orthotropic Laminates
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全正交各向异性层压板非对称形式的表征
DOI：
10.2514/1.32938
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发表时间：
2009
影响因子：
2.2
通讯作者：
C. York
中科院分区：
文献类型：
--
作者：
C. York
DOI: 10.2514/1.32938堆叠序列列表以缩略形式呈现，用于具有多达21层的完全正交各向异性角层压层压板，其特征在于角度和交叉层压子序列对称。这一节略的序列集来自于一个新的确定列表，取代了以前公布的列表。层叠序列与无量纲参数一起提出，由此可以方便地计算拉伸和弯曲刚度项，并可以对角度和交叉层叠序列进行弯曲刚度效率的评估。还给出了将无量纲参数与众所周知的分层参数相关联的表达式，以及确定列表中包含的所有子序列对称性的可行域的图形表示。扩展各向同性和全各向同性层压板的可行域也被认为是全正交各向同性层压板的重要子集。最后，给出了由确定表相容序列导出的具有完全正交各向异性的锥形层压板的例子。
DOI: 10.2514/1.32938 Stacking-sequence listings are presented in abridged form for fully orthotropic angle-ply laminates with up to 21 plies, which are characterized in terms of angle- and cross-ply subsequence symmetries. The abridged set of sequences is derived from a new definitive list that supersedes previously published listings. Laminate stacking sequences are presented together with dimensionless parameters from which the extensional and bending stiffness termsarereadilycalculatedandanassessmentofthebendingstiffnessefficiencycanbemadeforangle-andcross-ply subsequences. Expressionsrelating the dimensionless parameters to the well-known lamination parameters are also given, together with graphical representations of feasible domains for all subsequence symmetries contained in the definitive list. Feasible domains for extensionally isotropic and fully isotropic laminates are also presented as important subsets of fully orthotropic laminates. Finally, examples are given for tapered laminates with fully orthotropic properties, derived from compatible sequences in the definitive list.