MacroCrack
MacroCrack predicts crack propagation in viscoelastic media. It has been used successfully for looking compacted materials where the inclusions are air voids, and for filled materials like tablet film coatings.
Click on an image to view a larger version.
English
Supported Technologies
Windows 95/98/ME,
Windows XP/2000/NT
Click on a technology to view similar products within this category.
Pricing
Users (# of seats)
1500
sales@oxmat.co.uk
+44 1642 343411
Sold and supported direct from the UK
Additional Product Information
MacroCrack is a PC-based simulation package which lets you try 'what if' effects on cracking, by making changes to polymer properties and to the inclusions in the material., You input information about the particles - up to four different types can be treated. This information includes their size, size distribution, and the weight or volume fraction of each. Then, input information about the matrix - Young's modulus, yield stress, density and critical stress intensity factor., MacroCrack uses a simple algorithm developed by K B Broberg (International Journal of Fracture, 1990) to predict crack growth. In the models, holes are opened when the stress reaches a critical value, which depends on the size of the inclusions. Holes coalesce when the distance between them - or between the hole and the main crack - falls below a certain critical value. Hole opening and growth reduces the stress in the neighbourhood of the crack., You can predict whether or not a system will crack, and calculate the crack velocity. Integrated visualization allows you to see what the crack will look like - these visualizations compare favourably with electron micrographs., The method has been proven by Professor R C Rowe for compacted aspirin tablets, microcrystalline cellulose, and pigmented tablet film coatings.