Drop Test Analysis of a Honeycomb Structure Using Ansys: ASTM Standards

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Discussion Overview

The discussion focuses on conducting a Drop Test Analysis of a honeycomb structure using Ansys, specifically addressing the feasibility of simulation, required modules, and relevant ASTM standards for such tests.

Discussion Character

  • Technical explanation
  • Debate/contested

Main Points Raised

  • One participant inquires about simulating a drop test from a height of 20ft in Ansys, questioning the need for specific modules.
  • Another participant suggests that Ansys has a special module for dynamic analysis that accommodates unsteady effects, while noting their access is limited to static analysis.
  • A different participant confirms that Ansys can perform transient dynamic analyses and mentions that this capability is typically available in most professional versions of the software.
  • There is a reference to ASTM standard E436, which may be applicable, although it is noted that it is not directly for composites but could be relevant in an applied sense.
  • Another participant emphasizes that the ability to conduct a drop test simulation in Ansys depends on the specific parts of Ansys that the user currently possesses, highlighting that drop tests involve contact and impact problems that basic versions may not handle.

Areas of Agreement / Disagreement

Participants express varying levels of certainty regarding the capabilities of Ansys for drop test simulations, with some suggesting specific modules are necessary while others indicate that certain versions may suffice. The applicability of ASTM standards also remains a point of exploration without consensus.

Contextual Notes

Participants mention limitations related to the specific versions of Ansys available to them and the nature of the drop test as a contact/impact problem, which may not be addressed by basic finite element codes.

kashoo
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I want to do a Drop Test Analysis of my structure(Honeycomb like a box) from a height of 20ft...with free fall gravity...can i simulate this analysis in Ansys...will i have to purchase some specific module of this analysis in ansys...what is ASTM standard for this particular test?
 
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kashoo said:
I want to do a Drop Test Analysis of my structure(Honeycomb like a box) from a height of 20ft...with free fall gravity...can i simulate this analysis in Ansys...will i have to purchase some specific module of this analysis in ansys...what is ASTM standard for this particular test?

I think Ansys has an special module of Dynamic analysis, where unsteady effects are allowed. I only have the Static one.
 
Yeah, you can run the analysis in Ansys, it can perform transient dynamic analyses. I believe it is available in most Ansys releases, at least the pro, structural, multiphysics ones.

The ASTM standard E436 on drop-weight tear test might be usable, not directly for composites but in applied sense. You can search the ASTM site for closer references, they have lots of standards suited for specific purposes like drop tests for different sort of containers etc., perhaps some of those would be directly applicable.
 
kashoo said:
I want to do a Drop Test...can i simulate this analysis in Ansys...will i have to purchase some specific module of this analysis in ansys

It depends what parts of Ansys you already have. The drop test is a contact/impact problem, which the basic versions of many FE codes can't address.
 

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