Thin-walled cylinders are sensitive to imperfections

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Thin-walled cylindersDecreased buckling loads and geometrical imperfections are closely related for thin-walled cylinders. Geometrical imperfections have been demonstrated to have clearly the highest influence on the buckling load when compared to, for example, the effect of thickness variations, stress variations, and boundary stiffness. The real imperfections are often unknown, but in the design process the influence of the imperfections has to be taken into account properly to achieve a safe structure. Read more...

Meet Componeering at JEC Europe 2015

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JEC 2015JEC Europe Composites Show, Paris, March 10-11-12, 2015

  • Throughout the show, drop by our stand for a look at ESAComp in action with our engineers.
  • Join us for our daily Technical Briefing, each day at 11:00-11:20, where we will talk through examples of ESAComp enhanced capabilities for the design and analysis of composites structures.
  • See how ESAComp interfaces with ComposicaD filament winding simulation software to provide design and analysis of composite overwrapped pressure vessels (COPV).
  • For HyperWorks users, check out the interface enabling ESAComp assisted post-processing.

We're an active member of Altair Partner Alliance, find us together with Altair Engineering in Hall 7.3 on Stand S18. See Floor Plan...

Quick and clean technology for composite cylinder stability analysis

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Cylinder stabilityA set of thin-walled cylindrical shells (radius-to-thickness ratio of 160-500) under different loading conditions have been studied for structural stability with ESAComp using different mesh densities. Comparison has been made to results from literature references. Based on this study, guidelines for the selection of the element mesh density have been set. Read more...

Preliminary design of a wing spar bonded joint

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Wing sparFast tools such as the ESAComp module for bonded joints can be very efficient in the preliminary design of various joint configurations. In this example we consider a tip loaded wing of a small aircraft or wind turbine blade. The wing spar carries a constant in-plane shear (Nxy), which needs to be transferred from the joint laminates to the shear web. Read more...

Join webinar on ComposicaD-ESAComp solution for composite pressure vessel simulation

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ComposicaD-ESACompDecember 16, 2014 at 14:00 UTC / 15:00 CET / 9:00 am EST - An analysis module for composite overwrapped pressure vessels (COPV) is one of the recent additions in ESAComp software. In this webinar Michael Skinner (Seifert and Skinner & Associates) will demonstrate how to build a pressure vessel in ComposicaD, from the preliminary design to the construction of the laminate and the export to ESAComp. The subsequent simulation work-flow in ESAComp is illustrated by Harri Katajisto (Componeering), including material data definition, analysis settings and post processing. A design modification is introduced and the process is re-run to demonstrate the responsiveness of the tool set. View webinar recording!

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