You need to test the durability of your products. What's the best tool for the job?

If you need to test the durability of a medical device, you should consider using tools and methods that comply with relevant medical industry standards and regulations, such as ASTM, ISO and FDA guidelines. Some specialized tools for medical device durability testing include: 1. Accelerated aging chambers (temperature, humidity, and light exposure testing) 2. Mechanical testing machines (tensile, compressive, and flexural strength testing) 3. Fatigue testing systems (cyclical loading and unloading testing) 4. Package testing equipment (simulating transportation and storage conditions) 5. Sterilization validation equipment ( ensuring durability through sterilization cycles)

In my experience, I would suggest you to scale down the model for a cost effective testing. If critical dependancy on functionality is higher then i would suggest testing the original product

Para a eficiência dos testes, primeiramente é necessário se fazer uma avalia??o das fun??es criticas, analisar o possíveis modos de falha e um FMEA. Baseado nisto é necessário estabelece o tipo de ensaio e aparatos necessários para validar os modos de falha identificados. Normalmente o objetivo dos ensaios é estabelecer os limites de falhas e opera??o do que se deseja testar. Os resultados dever?o ser expressos de forma a representar a confiabilidade do item testado, assim é necessário selecionar uma ferramenta estatista que represente o tipo de representa??o que se deseja obter. A forma mais comum de se analisar utilizada normalmente é através de uma distribui??o de Weibull.

In my experience in medical devices involving biologicals, the aging conditions applied for accelerated stability testing affect dramatically the performance of the devices. Each assay showes different sensitivity to high temperatures and that makes difficult the extrapolation of shelf life of the medical device from the accelerated stability studies. In this setting, the accelerated studies are very useful to compare materials and formulations, but are not informative regarding the durability of the device. For that reason, real time stability and on-going stability studies should always be performed to test shelf life of an in vitro diagnostics medical device.

HALT/HASS would be a good starting for product designers to gain a quick baseline understanding of their product failure modes, upper and lower operating and destruct limits. Plotting damage boundary curves could also help designers understand product fragility limits. When the final product has been ruggedised, there are many international standards out there that can be used to benchmark its reliability / durability performance. However, oftentimes, the international standard does not explain the acceleration factors behind specifications.

We can’t mimic nature 100% hence we can’t predict completely under original environment hence we use controlled conditions such as chambers. They have to start R&D in natural conditions where the product will work in long time. For a short span accelerated testing it is fine but consider long time deeds also

En especias y mezclas de estas con aditivos un factor a tener en cuenta en el desarrollo de productos es su vida útil.Para esto se establecen los criterios de aceptación/rechazo y ponemos en marcha ensayos que los pongan en compromiso. 1.Someter al producto a estrés a diferentes temperaturas y exposición a la luz y verificar cómo afecta a nivel visual, organoléptico y de oxidación de componentes que le confieran sus propiedades. 2.Someter el producto a ambientes húmedos y testear microbiología. 3. En condiciones de almacenaje óptimas comprobar si se produce algún tipo de reacción entre los componentes. 4. Probar la funcionalidad del producto sobre la matriz para la que ha sido dise?ado en condiciones estándar y en las más desfavorables.

Subject your product to extreme temperatures, humidity levels, and even altitude variations. These chambers mimic real-world conditions, helping you identify potential weaknesses before they cause real-world problems. Consider factors like temperature range, control accuracy, and chamber size when choosing.

Exert physical forces like tension, compression, and torsion on your product. These testers measure its breaking point, fatigue resistance, and overall mechanical integrity. Options range from simple force gauges to complex multi-axis testing machines. Match the tester's capabilities to the specific forces your product will encounter.

Mechanical testers are necessary to approximate the durability of a product, further each component may have a different life span. Durability depends upon the use case of a component, which recommends the specific test for the particular component. A component involved in bending and torsion should be tested for bending, torsion, and compression strengths. Creep, fatigue, tensile, and comprehensive strength tests are recommended for a load bearing component. Shafts and bearings should be tested with torsion, hardness, and thermal expansion. The outer body parts of the product should be mechanically hard and impact resistant. In a similar way, the use case defines the mechanical tests for a particular component/part of the product.

In my experience in the field of construction, I have seen several mechanical testers that is crucial in building structures. All types of testing methods are being applied to members of the structure especially to pre-cast concrete structures where tension and compression are the two main factors to ensure durability. Elasticity is one factor that ensures resistance to loads. All such testing are necessary for recording and approval prior to installation of every structural member. I have seen some failures to the testing and structural members getting rejected. Some mechanical testers are small testing only product samples, but there are also mechanical testers that are huge. It's just a great experience to have encountered such machines.

Una cuarta opción para las pruebas de durabilidad es la implementación de un sistema instrumentado. Este sistema combina sensores, dispositivos de adquisición de datos y software, permitiendo monitorear y registrar los parámetros físicos y el rendimiento de los productos durante las pruebas. Con él, puede medir diversos aspectos como temperatura, presión, deformación, desplazamiento, vibración, ruido, y propiedades eléctricas, ópticas o químicas. Los sistemas instrumentados posibilitan la evaluación detallada y en tiempo real de la durabilidad de los productos, facilitando análisis y optimización de dise?o y funcionalidad.

I would suggest ANSYS , Simscale for battery pack durability testing via software, but it is better to perform a physical experiment if you are going to take it to higher level, quality can’t be compromised in a large scale

Recomendo incialmente se escolher um framework que oriente todo o processo de qualifica??o demandado. Alguns setores já disp?e de framework próprios. Os testes deve sempre ser orientados para a aplica??o final que se deseja, assim, aspectos como funcionalidades, ambiente e criticidade devem ser sempre analisados. O objetivo sempre estará relacionado a demonstrar desempenho, seguran?a e confiabilidade.

To choose the best tool for testing R&D product durability, consider factors like product type, anticipated stress levels, and testing environment. Options include mechanical testers for strength, environmental chambers for temperature/humidity tests, and vibration testers for ruggedness. Prioritize accuracy, repeatability, and relevance to real-world conditions. Conduct thorough research, consult experts, and perform pilot tests to validate the chosen tool's suitability.

Procure identificar um framework que seja representativo as características da sua demanda. Vários setores possuem framework padr?es para este tipo de atividade. Sempre identifique os modos de falha, um Fmea sempre será útil. Sempre tenha em mente quais s?o as fun??es críticas da sua aplica??o.

Bonus Tip: Explore combined approaches! Combining different testing methods can provide a more comprehensive understanding of your product's durability. Remember, the best durability testing tool is the one that helps you achieve your specific testing goals effectively and efficiently. By carefully considering your product's needs, available resources, and industry standards, you can choose the right tool to ensure your product's long-lasting performance and success in the market.

Depending on the product the method and tools for durability testing may vary. We cannot generalize it. We may use the following testing methodologies 1- Simulation of durability test in any suitable software (ensure proper validation and correlation with field data) 2- Product testing in indoor testing machinery, for instance, the endurance of automotive tires in a rotating drum under specified conditions. 3- If the product is ready a quick product test in the actual atmosphere. 4- Extended test of the product till the end of its life in the field.