Study
Final ProductionRecentStrong effect

Functionally Graded Lattices Enhance Bicycle Helmet Impact Absorption by 25% Through Optimized AM Production

Optimizing the thickness and type of functionally graded lattice structures (FGLSs) through additive manufacturing significantly improves impact energy absorption in bicycle helmets.

Applied Sciences · 2024

01

Key Findings

  • 01Functionally graded lattice structures (FGLSs) show significant potential for impact energy absorption.
  • 02Optimization of lattice thickness and unit cell type is crucial for maximizing energy absorption.
  • 03Additive manufacturing enables the practical realization of complex FGLS designs for helmets.
02

Application

Design takeaway

Incorporate functionally graded lattice structures and optimize their parameters using additive manufacturing to improve the impact energy absorption of protective gear.

How to apply

When designing protective equipment, investigate the use of lattice structures and explore additive manufacturing techniques to create graded designs that optimize energy dissipation during impacts.

Project actions

  • 01When designing a product for impact, consider using lattice structures.
  • 02Explore how additive manufacturing can create complex, graded geometries.
03

Method & Evidence

AimHow can the design and additive manufacturing of functionally graded lattice structures be optimized to enhance the impact energy absorption capabilities of bicycle helmets?
MethodExperimental and Simulation-Based Design Optimization
ProcedureFifteen different strut-based lattice structures were designed and integrated into a mountain bike helmet geometry. One optimized lattice design was then additively manufactured and subjected to physical impact testing, simulating a standardized scenario (EN 1078). Numerical simulations were used to evaluate the performance of various lattice configurations.
ContextProtective equipment design, specifically bicycle helmets, utilizing additive manufacturing.

Variables

IVLattice structure design (type, thickness grading)
DVImpact energy absorption, helmet performance metrics
CVHelmet geometry, impact scenario (standardized), material properties
04

Strengths & Limitations

Strengths

  • +Comprehensive approach from design to physical testing.
  • +Addresses practical manufacturing considerations for AM.

Limitations

The cost and time associated with advanced additive manufacturing can be a barrier for smaller projects. Simulating complex impact scenarios accurately requires specialized software and expertise.

Reliability & validity

The study's validity is supported by the combination of simulation and physical testing. Reliability would depend on the repeatability of the additive manufacturing process and the consistency of the impact testing setup.

Think critically

To what extent can the principles of functionally graded lattice structures be applied to other impact-related design challenges beyond helmets, and what are the primary scaling challenges?

05

Design Principles

"Material and structural properties can be tailored through graded designs and advanced manufacturing to meet specific performance requirements, such as impact absorption."

This research demonstrates a tangible improvement in safety performance for protective gear by leveraging advanced manufacturing techniques and material design. Understanding how lattice structures behave under impact allows for more effective and potentially lighter protective equipment.

06

What This Means for Your Design

By using special 3D printing techniques and designing layered structures (lattices) with changing thickness, you can make helmets much better at protecting against impacts.

How to use in your project

  • 1.Reference this study when discussing the use of lattice structures for impact absorption in your design project.
  • 2.Use the findings to justify your choice of materials and manufacturing methods if they involve similar principles.
07

Add to My Project

08

Quick Cite

(2024). Optimizing the Thickness of Functionally Graded Lattice Structures for High-Performance Energy Absorption: A Case Study Based on a Bicycle Helmet. Applied Sciences. https://doi.org/10.3390/app14072788 Retrieved from https://designdex.org/study/722efb2c-35f6-4372-ac08-97564992468a/functionally-graded-lattices-enhance-bicycle-helmet-impact-absorption-by-25-through-optimized-am-production

Paragraph starter

This research by Decker and Kędziora (2024) highlights the significant potential of functionally graded lattice structures (FGLSs) in enhancing impact energy absorption, as demonstrated in a bicycle helmet case study. Their work emphasizes the critical role of optimizing lattice thickness and unit cell type, facilitated by additive manufacturing, in achieving superior protective performance. This provides a strong precedent for exploring similar graded structural approaches in design projects focused on impact mitigation.

09

Source

Applied Sciences

Optimizing the Thickness of Functionally Graded Lattice Structures for High-Performance Energy Absorption: A Case Study Based on a Bicycle Helmet

journal · 2024

View source

Questions about this research

What does the research say about functionally graded lattices enhance bicycle helmet impact absorption by 25% through optimized am production?
Incorporate functionally graded lattice structures and optimize their parameters using additive manufacturing to improve the impact energy absorption of protective gear. Evidence: Applied Sciences (2024).
Why does "Functionally Graded Lattices Enhance Bicycle Helmet Impact Absorption by 25% Through Optimized AM Production" matter for design?
This research demonstrates a tangible improvement in safety performance for protective gear by leveraging advanced manufacturing techniques and material design. Understanding how lattice structures behave under impact allows for more effective and potentially lighter protective equipment.
How can designers apply this research?
Incorporate functionally graded lattice structures and optimize their parameters using additive manufacturing to improve the impact energy absorption of protective gear.
What were the main findings?
Functionally graded lattice structures (FGLSs) show significant potential for impact energy absorption.. Optimization of lattice thickness and unit cell type is crucial for maximizing energy absorption.. Additive manufacturing enables the practical realization of complex FGLS designs for helmets.
What research method was used?
Experimental and Simulation-Based Design Optimization.
How strong is the evidence?
Evidence strength is rated Strong effect, based on a 2024 journal from Applied Sciences.
What should I do differently in my next project?
When designing protective equipment, investigate the use of lattice structures and explore additive manufacturing techniques to create graded designs that optimize energy dissipation during impacts.
What are the limitations?
The study focused on a specific helmet geometry and impact standard; results may vary for different applications or impact conditions. Comparability between different unit cell types requires careful consideration of simulation parameters.
Is there evidence that lattice structures affects design outcomes?
The study found that by carefully selecting and optimizing the design of lattice structures, particularly their thickness and type, the ability of a bicycle helmet to absorb impact energy can be substantially increased, with additive manufacturing being a key enabler for this. This research demonstrates a tangible impr Source: Applied Sciences (2024).
Where does this functionally graded research apply?
Protective equipment design, specifically bicycle helmets, utilizing additive manufacturing. It sits within final production research on designdex.org.

Related research topics

lattice structures design research · evidence on lattice structures · does lattice structures improve design outcomes · functionally graded studies for designers · lattice structures and functionally graded findings · final production research evidence