A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
In work under another contract, we had studied the initiation of mode I tensile cracks (not delamination cracks) that tunnel down individual plies in brittle matrix laminates or woven textiles and then turn into plane cracks spreading across many plies en route to part failure. Under this contract, we unified this modeling with our models of cracks bridged by creeping fibers. In the absence of fiber creep, the plane strain phase of crack propagation often (and desirably) ends in crack arrest, because the plane strain crack grows into a lengthening bridging zone as the crack traverses plies. However, fiber creep relaxes the bridging and allows crack growth to resume, which leads to failure at undesirable low stresses. We developed comprehensive solutions to this mode of crack growth.
In work under another contract, we had studied the initiation of mode I tensile cracks (not delamination cracks) that tunnel down individual plies in brittle matrix laminates or woven textiles and then turn into plane cracks spreading across many plies en route to part failure. Under this contract, we unified this modeling with our models of cracks bridged by creeping fibers. In the absence of fiber creep, the plane strain phase of crack propagation often (and desirably) ends in crack arrest, because the plane strain crack grows into a lengthening bridging zone as the crack traverses plies. However, fiber creep relaxes the bridging and allows crack growth to resume, which leads to failure at undesirable low stresses. We developed comprehensive solutions to this mode of crack growth.
Rate Dependent Cohesive Zones
B. N. Cox (author)
1997
105 pages
Report
No indication
English
A loading rate dependent cohesive model for concrete fracture
| British Library Online Contents | 2012
A loading rate dependent cohesive model for concrete fracture
| British Library Online Contents | 2012
Analysis of a rate-dependent cohesive model for dynamic crack propagation
| British Library Online Contents | 2002
Triaxiality dependent cohesive zone model
| British Library Online Contents | 2009
An efficient mixed-mode rate-dependent cohesive fracture model using sigmoidal functions
| British Library Online Contents | 2018