A low-cost tabletop tensile tester with optical extensometer

Democratized mechanical testing offers a promising solution for decarbonization by enabling the widespread adoption of sustainable materials, such as recycled or renewably sourced feedstocks. These locally sourced materials often exhibit variable mechanical properties, which limits their large-scale use due to tight manufacturing specifications. Wider access to mechanical testing at the local level can address this challenge by collecting data on the variable properties of sustainable feedstocks, allowing for the development of appropriate, uncertainty-aware mechanics frameworks. These frameworks are essential for designing custom manufacturing approaches that accommodate variable local feedstocks while ensuring product quality and reliability through post-manufacturing testing. However, traditional mechanical testing apparatuses are too costly and complex for widespread local use by individuals or small, community-based facilities. Despite promising efforts over the past decade to develop more affordable and versatile testing hardware, significant limitations remain in their reliability, adaptability, and ease of use. Recent advances in artificial intelligence (AI) present an opportunity to overcome these limitations by reducing human intervention, enhancing instrument reliability, and facilitating data interpretation. AI can thus enable the creation of low-cost, user-friendly mechanical testing infrastructure. Future efforts to democratize mechanical testing are expected to be closely linked with advancements in manufacturing and materials mechanics. This perspective paper highlights the need to embrace AI advancements to facilitate local production from sustainable feedstocks and enhance the development of decentralized, robust supply chains.

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A low-cost tabletop tensile tester with optical extensometer

Abstract: High quality mechanical testing normally demands costly test equipment. This work presents a low cost (~$500) fully customizable tensile tester that is designed from locally sourced and readily available components...

Cited by 4 publications

References 15 publications

CRAPPY goes embedded: Including low-cost hardware in experimental setups

CRAPPY goes embedded: Including low-cost hardware in experimental setups

Analysis of the difference outcome between the simulation and the structural testing of SM 490 and SM 570 materials through the modulus elasticity test

A Perspective on Democratizing Mechanical Testing: Harnessing Artificial Intelligence to Advance Sustainable Material Adoption and Decentralized Manufacturing

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