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Marshmallow

An App for Rheologists. Non-Newtonian Flow Models. Shear Thinning. Yield Stress. Cross. Carreau. Bingham. Herschel Bulkley. Arrhenius. WLF. TTS. Activation Energy. Pressure effect. D3.

Key Features:

Store Material Data:
Save the flow parameters of your material according to their flow behavior into a local database.

Supported Flow Models:
Newtonian, Power Law, Cross, Carreau, Carreau Yasuda, Bingham, Herschel Bulkley, Casson, Newtonian Arrhenius, Newtonian WLF, Cross WLF, Carreau Yasuda WLF, Cross WLF Thermoplastic, Cross Arrhenius Thermoplastic.

Plot Viscosity Curves:
Plot Rheological Curves using the saved material data: Viscosity Curves (viscosity vs. shear rate) Flow Curves (shear stress vs. shear rate) and Temperature Curves (shear rate vs. temperature).

Viscosity Calculator:
Calculate viscosity at different conditions of shear rate, temperature and pressure using the saved material data.

Rheological Curve Fitting:
Fit experimental data of viscosity and shear stress to different rheological models:
* Viscosity Curve Fitting: Cross, Carreau, Carreau Yasuda.
* Flow Curve Fittting: Power Law, Bingham, Herschel Bulkley, Casson.
* Temperature Curve Fitting: Arrhenius, WLF.

Time Temperature Superposition:
Create Mastercurves from experimental viscosity, stress relaxation and DMA data. Fit to Arrhenius and WLF models. Determine the Arrhenius Activation Energy and WLF c1/c2 parameters.

Rheometry Toolbox:
Calculate Shear Rate, Shear Stress, Viscosity from Rheometer raw data, such as Flow Rate, Pressure Difference, RPM, Torque. Supported geometries: Capillary Die, Slit Die, Parallel Plate, Cone and Plate, Cup and Bob.

Rheology App

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