Short answer

Incorporate a quantifiable 'ease of disassembly' assessment into the design process to prioritize repairability, reusability, and recyclability.

Field
Sustainability
Source
Lirias (KU Leuven) (2016)
Method
Quantitative assessment and index development
Evidence
Strong effect

A standardized method and metric can objectively assess the ease of disassembling electrical and electronic equipment, facilitating repair, reuse, and recycling. This sustainability research insight is drawn from a 2016 study published in Lirias (KU Leuven). Using Quantitative assessment and index development, researchers explored how this design variable affects real-world outcomes. The key design takeaway: Incorporate a quantifiable 'ease of disassembly' assessment into the design process to prioritize repairability, reusability, and recyclability.

Study
SustainabilityHigh ImpactStrong effect

Quantifiable Disassembly Index for Enhanced Product Lifecycles

A standardized method and metric can objectively assess the ease of disassembling electrical and electronic equipment, facilitating repair, reuse, and recycling.

Lirias (KU Leuven) · 2016

01

Key Findings

  • 01A structured approach to identifying and quantifying disassembly actions is feasible.
  • 02A composite index can provide a measurable score for the ease of disassembly.
  • 03The method is applicable to product design optimization for repair, reuse, and recycling.
02

Application

Design takeaway

Incorporate a quantifiable 'ease of disassembly' assessment into the design process to prioritize repairability, reusability, and recyclability.

How to apply

When designing new electronic products, define the key disassembly actions and fastener types. Assign time or effort values to each action and calculate a composite disassembly index to guide design choices towards simpler disassembly.

Project actions

  • 01When designing a product, think about how someone would take it apart later.
  • 02Try to use fewer types of screws or connectors, and make them easy to access.
03

Method & Evidence

AimTo develop a standardized, verifiable method and metric for assessing the ease of disassembly of electrical and electronic equipment.
MethodQuantitative assessment and index development
ProcedureThe study reviewed existing disassembly assessment methods, identified key disassembly actions (tool change, identification, manipulation, positioning, disconnection, removal), assigned reference values to these actions and fastener types, and proposed a novel 'ease of disassembly' index.
ContextElectrical and Electronic Equipment (EEE) product design and end-of-life management

Variables

IVType of fastener, complexity of disassembly action, product design features.
DVEase of disassembly score/index.
CVStandardized toolset, defined disassembly actions, consistent environmental conditions.
04

Strengths & Limitations

Strengths

  • +Provides a quantitative and objective measure for disassembly.
  • +Applicable to various types of EEE.
  • +Supports policy development and product design optimization.

Limitations

It can be difficult to accurately measure the time or effort for each disassembly step without a standardized toolset or consistent user skill.

Reliability & validity

Reliability could be improved by having multiple individuals perform the disassembly and averaging their times/scores. Validity is supported by the systematic breakdown of actions and the alignment with circular economy goals.

Think critically

How might the 'ease of disassembly' metric be influenced by the tools available to the end-user or recycler?

05

Design Principles

"Design for Disassembly: Products should be designed to be easily and safely taken apart to facilitate repair, component reuse, and material recovery."

Designing for disassembly is crucial for advancing the circular economy by enabling efficient end-of-life management. This approach supports product design optimization, policy compliance, and improved waste treatment processes.

06

What This Means for Your Design

This research shows how to give electronic products a score for how easy they are to take apart, which helps make them better for fixing, reusing, or recycling.

How to use in your project

  • 1.Use the concept of a disassembly index to justify design choices that prioritize ease of repair or recycling.
  • 2.Document the process of evaluating disassembly for your design, referencing the types of actions and fasteners considered.
07

Add to My Project

08

Quick Cite

Paragraph starter

The design incorporates principles of Design for Disassembly, aiming to improve the product's end-of-life management. By considering key disassembly actions such as fastener removal and component disconnection, the design seeks to facilitate easier repair, reuse, and recycling, aligning with circular economy principles.

09

Source

Lirias (KU Leuven)

Study for a method to assess the ease of disassembly of electrical and electronic equipment. Method development and application to a flat panel display case study.

journal · 2016

View source

Questions About This Research

What does the research say about quantifiable disassembly index for enhanced product lifecycles?
Incorporate a quantifiable 'ease of disassembly' assessment into the design process to prioritize repairability, reusability, and recyclability. Evidence: Lirias (KU Leuven) (2016).
Why does "Quantifiable Disassembly Index for Enhanced Product Lifecycles" matter for design?
Designing for disassembly is crucial for advancing the circular economy by enabling efficient end-of-life management. This approach supports product design optimization, policy compliance, and improved waste treatment processes.
How can designers apply this research?
Incorporate a quantifiable 'ease of disassembly' assessment into the design process to prioritize repairability, reusability, and recyclability.
What were the main findings?
A structured approach to identifying and quantifying disassembly actions is feasible.. A composite index can provide a measurable score for the ease of disassembly.. The method is applicable to product design optimization for repair, reuse, and recycling.
What research method was used?
Quantitative assessment and index development.
How strong is the evidence?
Evidence strength is rated Strong effect, based on a 2016 journal from Lirias (KU Leuven).
What should I do differently in my next project?
When designing new electronic products, define the key disassembly actions and fastener types. Assign time or effort values to each action and calculate a composite disassembly index to guide design choices towards simpler disassembly.
What are the limitations?
The reference values for disassembly actions may require further validation across a wider range of products and user expertise levels. The study focused on a specific case study (flat panel display), and generalizability to all EEE needs further testing.