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2011

CAD-integrated analysis of 3-D beams: a surface-integration approach

9 years 3 months ago
CAD-integrated analysis of 3-D beams: a surface-integration approach
1 Most engineering artifacts are designed and analyzed2 today within a 3-D computer aided design (CAD)3 environment. However, slender objects such as beams are4 designed in a 3-D environment, but analyzed using a 1-D5 beam element, since their 3-D analysis exhibits locking6 and/or is computationally inefficient. This process is7 tedious and error-prone.8 Here, we propose a dual-representation strategy for9 designing and analyzing 3-D beams, directly from within a10 3-D CAD environment. The proposed method exploits11 classic 1-D beam physics, but is implemented within a 3-D12 CAD environment by appealing to the divergence theorem.13 Consequently, the proposed method is numerically and14 computationally equivalent to classic 1-D beam analysis15 for uniform cross-section beams. But, more importantly, it16 matches the accuracy of a full-blown 3-D finite element17 analysis for non-uniform beams.18
Wa'el Abdel Samad, Krishnan Suresh
Added 28 Aug 2011
Updated 28 Aug 2011
Type Journal
Year 2011
Where EWC
Authors Wa'el Abdel Samad, Krishnan Suresh
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