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Structural performance envelopes in load space
The Aeronautical Journal ( IF 1.4 ) Pub Date : 2020-11-17 , DOI: 10.1017/aer.2020.94
A. Dharmasaroja , C.G. Armstrong , A. Murphy , T.T. Robinson , N.L. Iorga , J.R. Barron

Visualising the loads that a structure can tolerate provides a key insight into the structural design process, especially for materials and structures that are governed by complex failure criteria. This paper proposes a general method for efficient construction of performance envelopes in load space, and demonstrates the approach with two examples. The performance envelope identifies all possible failure modes, all the redundant and non-redundant structural constraints, and the limiting failure mode in a particular direction in load space. Once the envelope has been constructed, the structural reserve factors can be calculated extremely quickly. In design such envelopes are most useful for structural analysis processes which involve a very large number of load cases, and where the cost of constructing an envelope for a given feature is relatively modest.

中文翻译:

负载空间中的结构性能包络

可视化结构可以承受的载荷提供了对结构设计过程的关键洞察,特别是对于受复杂失效标准控制的材料和结构。本文提出了一种在负载空间中有效构建性能包络的通用方法,并通过两个示例演示了该方法。性能包络识别所有可能的故障模式、所有冗余和非冗余结构约束,以及负载空间中特定方向的限制故障模式。一旦围护结构建成,结构储备系数可以非常快速地计算出来。在设计中,此类包络对于涉及大量载荷工况的结构分析过程最有用,
更新日期:2020-11-17
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