<p>Check out Hypermesh Optistruct, which lets you perform topology optimization to identify the optimal distribution of material within any matrix in order to satisfy desired performance criteria.</p>

<p><a href="https://altairhyperworks.com/solution/Additive-Manufacturing" rel="nofollow noreferrer">https://altairhyperworks.com/solution/Additive-Manufacturing</a></p>

<p>Similarly Scott Hollister's work describes the procedure to design a porous scaffold to meet conflicting requirements such as mechanical properties for strength and porosity % for material diffusion etc.</p>

<p><a href="https://www.ncbi.nlm.nih.gov/pubmed/16003400" rel="nofollow noreferrer">https://www.ncbi.nlm.nih.gov/pubmed/16003400</a></p>

CC BY-SA 3.0
2018-03-30T14:27:17.213Z
2018-03-30T14:27:17.213Z
PR90
<p>In Tymrak, B. M., M. Kreiger, and Joshua M. Pearce. "Mechanical properties of components fabricated with open-source 3-D printers under realistic environmental conditions." Materials &amp; Design 58 (2014): 242-246., the authors suggest that one of the strongest factors influencing simple tensile strength of a 3D printed part was the ratio of its measured mass compared to its expected mass calculated by the slicer. Given that many printers under-extrude (especially when used with manufacturer's calibration settings) the accuracy of your model may be moot if your model isn't as solid as you'd expect it to be. The authors also suggest that the presence of fillers and pigments affected overall part strength.</p>

<p>The researchers at the not-for-profit <a href="https://niatech.org/work/research-and-development/" rel="nofollow noreferrer">Nia Technologies</a> develop technologies for 3D-printed prostheses. They have some published research, but I'm not aware if it includes their FEA technique or tools. From an informal discussion with one of their staff, it seems that material variability and even environmental conditions while printing have measurable effects on final strength.</p>

CC BY-SA 4.0
2018-05-05T16:34:56.777Z
2018-05-05T16:34:56.777Z
scruss
<p>Rhino will let you create a custom lattice structure inside the solid object, this can in turn be used to create infill using grasshopper (an inbuilt scripting tool):</p>

<ul>
<li>create a standard cell size and apply the lattice,</li>
<li>convert the whole thing to solid,</li>
<li>reimport into inventor</li>
</ul>

CC BY-SA 3.0
2018-01-28T11:08:02.033Z
2018-01-28T22:24:46.197Z
2018-01-28T22:24:46.197Z
Axel Fernandes
<p>I would like to get a pretty accurate method to do finite element analysis (FEA) on my 3d designs considering the infill. I use <em>Autodesk Inventor</em> to design parts but the FEA can only be applied to a solid body (100% infill). Does anyone know software that can convert a 3d design to another but considering the infill so I can use FEA more accurately?</p>

CC BY-SA 3.0
2018-01-15T16:10:40.897Z
You're essentially simulating a honeycomb. I don't know how inventor works, but I imagine that in order to do this, you'd need to create 2 parts. One for the walls and one for the infill.
Onno
<cad><infill><analysis>
FEA in 3d printed solids
Juan Pablo Rodas Martínez
# FEA in 3d printed solids

(Asked by: username_0 on 2017-11-14)

I would like to get a pretty accurate method to do finite element analysis (FEA) on my 3d designs considering the infill. I use *Autodesk Inventor* to design parts but the FEA can only be applied to a solid body (100% infill). Does anyone know software that can convert a 3d design to another but considering the infill so I can use FEA more accurately?

**Tags:** cad, infill, analysis
> **Comments:**
> **username_1**: You're essentially simulating a honeycomb. I don't know how inventor works, but I imagine that in order to do this, you'd need to create 2 parts. One for the walls and one for the infill.  

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## 3 answers

### Answer by username_2 on 2018-03-30. Score: 1

Check out Hypermesh Optistruct, which lets you perform topology optimization to identify the optimal distribution of material within any matrix in order to satisfy desired performance criteria.

<https://altairhyperworks.com/solution/Additive-Manufacturing>

Similarly Scott Hollister's work describes the procedure to design a porous scaffold to meet conflicting requirements such as mechanical properties for strength and porosity % for material diffusion etc.

<https://www.ncbi.nlm.nih.gov/pubmed/16003400>


---

### Answer by username_3 on 2018-05-05. Score: 1

In Tymrak, B. M., M. Kreiger, and Joshua M. Pearce. "Mechanical properties of components fabricated with open-source 3-D printers under realistic environmental conditions." Materials & Design 58 (2014): 242-246., the authors suggest that one of the strongest factors influencing simple tensile strength of a 3D printed part was the ratio of its measured mass compared to its expected mass calculated by the slicer. Given that many printers under-extrude (especially when used with manufacturer's calibration settings) the accuracy of your model may be moot if your model isn't as solid as you'd expect it to be. The authors also suggest that the presence of fillers and pigments affected overall part strength.

The researchers at the not-for-profit [Nia Technologies](https://niatech.org/work/research-and-development/) develop technologies for 3D-printed prostheses. They have some published research, but I'm not aware if it includes their FEA technique or tools. From an informal discussion with one of their staff, it seems that material variability and even environmental conditions while printing have measurable effects on final strength.


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### Answer by username_4 on 2018-01-28. Score: 1

Rhino will let you create a custom lattice structure inside the solid object, this can in turn be used to create infill using grasshopper (an inbuilt scripting tool):

* create a standard cell size and apply the lattice,
* convert the whole thing to solid,
* reimport into inventor


---

