Materials

Comportamiento al Impacto de vigas de hormigón

Existe una creciente demand para ensayar vitas de hormigón en una configuración de flexión de 3 puntos de impacto. Recomendamos una 9450 o 9440 para este ensayo dependiendo de la energía máxima requerida. Desarrollamos unos accessorios personalizados con útil de 300mm de anchura, un indentador especial y utilizamos el DAS para la adquisición de datos y el software Bluehill Impact.

Las muestras fueron de 400 x 100 x 100 mm y se ensayaron hasta 4.65 m/seg. La velocidad puede aumentarse si es necesario. Las pruebas mostraron los modos de rotura y fueron diseñadas para simular el ensayo sobre estructuras más grandes que requerirían mucha más energía de ensayo que la que puede lograrse en un laboratorio. Los tipos de resultados estudiados fueron la energía total absorbida, máxima carga, energía a la rotura y desplazamiento a rotura.

La 9450 es ideal para ayudar a los clientes a determinar las características de rendimiento de mus materiales cuando se someten a impacto. La información recopilada de un ensayo de impacto instrumentado puede utilizarse para proporcionar al cliente una base de datos mediante el cual puede determinar cómo los cambios realizados en la mezcla de materias primas se comportarán en situaciones de la vida real. Una gama más amplia de pruebas podría lograrse con la inclusión de una cámara de medio ambiente para estudiar las características de impacto a diferentes temperaturas así como el uso de accesorios diferentes e insertos para simular impactos en probetas de dimensiones no compatibles y situaciones de impacto.

View Accessories Catalog

Literatura

9400 Series Drop Tower Brochure

Instron Drop Towers are used to develop, fine tune, and validate material models. Testing materials under real impact conditions is a crucial step prior of product design. Using the characterization data obtained with the Instron 9400, coupled with customer supplied high-speed video, you can have confidence in your results and deliver new materials to your customers faster. Our Drop Tower impact systems, fixtures, and tups are designed to meet a wide range of applications and testing standards including: ISO, ASTM, ANSI, Airbus, Boeing, BSI, DIN, EN, FDA, Ford, GM, JIS, NASA, GOST, and more.

Productos
02/05/2020
763.1 KB

9400 Series Dashboard Brochure

Bluehill® Impact is built from the ground up for touch interaction. The Operator Dashboard features large touchpoints to make the user experience simpler and smarter. Easy-to-understand icons and workflows make it easy to train new or experienced users, simplify operator training, and allow you to start testing even faster than ever before

Productos
08/01/2019
2.35 MB

Materials

Impact Performance of Composite Decking

The backyard deck has taken on an ever increasing role in our lives becoming an extension of a homes interior living space. Traditionally decks have been built from pressure treated lumber, however, cost, life cycle, appearance, construction time, maintenance and environmental concerns are all factors contributing to the huge growth in the use of wood–plastic composites, also known as composite decking.

Made from a wide ranging mixture of wood and plastic, composite decking has certain advantages like durability, color retention and reduced maintenance costs over pressure treated wood. With a material cost 20 to 30 percent more than pressure treated pine, impact performance can be critical. Decks are routinely subjected to a wide range of everyday impact events, dropped tools, patio furniture, ladders and paint cans to name a few, and the types and quantities of the various materials used in the manufacturing of the decking can affect their resistance to impacts.

When approached by a manufacturer of composite decking we recommended a Instron 9450 with optional High energy system, instrumented with a 22.2kN tup, ½” hemispherical tup insert, 1” spherical tup insert, Data Acquisition System and Bluehill Impact software. By varying the tup insert and test velocity we were able to create a range of impact profiles and energies that allowed the customer to simulate a wide variety of impacts that their product might be subjected to.

The 9450 is well suited for helping customers determine the performance characteristics of their materials when subjected to an impact event. The information gathered by doing instrumented impact testing can be used to provide the customer with a data baseline whereby they can determine how changes made in the mix of raw materials will perform in real life situations. A broader range of testing could be accomplished with the inclusion of an environmental chamber to study impact characteristics at different temperatures as well as using different fixtures and inserts to simulate other unsupported spans and impact events.

View Accessories Catalog

Literature

9400 Series Drop Tower Brochure

Productos
02/05/2020
763.1 KB

9400 Series Dashboard Brochure

Productos
08/01/2019
2.35 MB

Materials

Drop Tower Impact Testing of Rocks and Stones

We have recently been in contact with a customer interested in a non-standard, but extremely interesting, way to perform impact tests. This company is specialized in the development of systems for selective fragmentation of various solids, especially in the mining and geosciences circuits. In these environments, improved methods for mineral comminution are continually being sought, pursuing the goal of achieving the required size reduction at a lower energy consumption level than conventional technology allows. Comminution is probably the largest energy consumer in most mine sites, with major implications for costs as well as environmental pollution. Applying different working conditions with their units they are able to pre-weak the rock or the stone to be comminuted. To understand how much their process is affecting the raw material, we suggest them a basic impact test by a means of a drop tower.

To help them to completely characterize the process, we have offer a 9450 drop tower equipped with a special support and a dedicated tup plus insert. The pre-weakened rock/stone will be placed for the test on the dedicated flat support. This support is connected to a reinforced adjustable height stand, which allows the proper positioning of the specimen for the impact. A dedicated tup, including a special reinforced flat insert, is used in combination with a reinforced tup-holder to impact the stone to be pulverized. Just selecting a specific mass and some basic test conditions (like the impact velocity or a drop height), it is possible to deliver on the specimen a well known amount of energy. The antirebound system is able to catch the tup preventing a second impact on the specimen. The weakened specimen will absorb a part of the impact energy fragmenting in many small pieces. The special box that is covering the impact area will allow to contain all pieces generated during the test, in order to perform further analysis and checks on the tested specimen.

To improve the understanding of the fragmenting process, is also possible to exchange the un-instrumented tup with a special one including a force sensor. The sensor, used in combination with a DAS and its related Bluehill software, will allow acquire the whole impact event and to perform more deeper analysis and studies.

View Accessories Catalog

Literature

9400 Series Drop Tower Brochure

Productos
02/05/2020
763.1 KB

9400 Series Dashboard Brochure

Productos
08/01/2019
2.35 MB