FRACTURABILITY/BRITTLENESS is the tendency of a material to fracture, crumble, crack, shatter or fail upon the application of a relatively small amount of force or impact. It is usually displayed by a product of high degree of hardness and low degree of cohesiveness and is commonly the textural property possessed by baked goods, snacks and generally 'dry' products.
Fracturability encompasses crumbliness, crispiness, crunchiness and brittleness. A material is brittle if it is liable to fracture when subjected to stress. That is, it has little tendency to deform (or strain) before fracture and usually makes a snapping sound.
The Acoustic Envelope Detector can by employed for any material which produces an audible noise when tested as it captures another dimension (i.e. sound) during the test which can also be analysed and used as a measured product feature. This is usually for brittle materials and the acoustic signal is as a result of a crack, break, snap or failure of some type.
Typical properties that can be obtained from a texture analysis graph:
Rupture point, crispness, fracturability, crunchiness, brittleness, fracture strength, fracture distance, work of failure, breaking strength
The above are only typical examples of fracturability/brittleness measurement. We can, of course, design and manufacture probes or fixtures that are bespoke to your sample and its specific measurement.
Once your measurement is performed, our expertise in its graphical interpretation is unparalleled – no-one understands texture analysis like we do. Not only can we develop the most suitable and accurate method for the testing of your sample, but we can prepare analysis procedures that obtain the desired parameters from your curve and drop them into a spreadsheet or report designed around your requirements.
Typical Texture Analyser graph with annotated properties
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