... on the damage in the sclera when subjected to large and repetitive deformations. Hence, the aim of this study is to quantify the extent of microstructural damage of the posterior and anterior sclera under loadings beyond the physiological range, through mechanical testing and model fitting. We performed...

... contains critical regions, such as revolute joints-ball bearings-journal bearings, that are prone to damage initiation and growth. If not detected early, damage in critical local regions leads to premature failure. The overall complexity of an integrated system limits developed classical methods from...

... Abstract Nondestructive acoustic imaging experiments and three dimensional finite element analyses were performed to study the crack-damage interaction phenomenon of a particle reinforced polymeric composite. Effects of damage size and degree of damage on the mode I stress intensity factor...

... level efficiently while maintaining the same accuracy. The structure level model heritages the characteristic of the transportation model at the material level model and correlates the material degradation with structure-level mechanical loading such as fatigue damage. The model is validated by UV...

... and the health of a structure in real-time. This will allow a structure to be operated at its maximum performance and efficiency while minimizing the fatigue damage. To achieve this on a large structure, a new highly distributed sensor concept is discussed in which piezoceramic fibers and microelectronic...

... for the simulation of composite degradation under loading. Damage initiation, growth, accumulation, and propagation to fracture are included in the simulation. Design implications with regard to defect and damage tolerance of integrally stiffened composite structures are examined. A procedure is outlined regarding...

... by the authors to generate a residual, deterioration-induced damage variable field, (ii) implement the residual damage field as the initiation of a continuum damage model (CDM) at structure length scale, and (iii) recreate one 3D façade plate of the SFMOMA and perform parametric damage analysis. fiber...

... conditions acting on to the structure, (ii) to detect the damages while in-service under dynamic loads, and finally, (iii) to monitor the pre-existing damages in the structure so that their severity can be ascertained to avoid eventual catastrophic or premature failures. The PFCS are generally an ideal...

... segments of swine intestine. Measurement data acquired determined parameters which generated the greatest amount of holding force while minimizing tissue damage. Vacuum pressures from 64 kPa–85 kPa were applied to suction tips. The measured force increased from 1.62 Newton (6 oz) to 3.89 Newton (14 oz...

... Creep damage viscoelasticity-viscoplasticity Electronic Speckle Pattern Interferometry The analysis of the long-term behaviour of polymer matrix composites has to be performed for their stiffness evolution and for their strength changes. Long fiber reinforced polymer matrix composites...

... NDE acoustics nonlinear frequency spectrum retrofit FRP concrete damage Many recent studies have indicated that externally bonded Fiber Reinforced Plastic (FRP) composite sheets can be used effectively to strengthen concrete structures. Composite action suggests that the individual...

... 23 05 2008 The paper presents a generalized mixed isotropic-kinematic hardening plastic model coupled with anisotropic damage for sheet metal forming. A nonlinear anisotropic kinematic hardening is developed. For the predication of limit strains at localized necking in stamping under...

... 23 05 2008 A damage coupling viscoplastic model is developed to predict fatigue life of solder alloy 63Sn-37Pb under stress control. The viscoplastic flow rule chosen employs a hyperbolic sine function. A damage evolution equation is formulated based on three distinct material...

...: Kinematic Hardening; Isotropic Hardening; y; Finite Element Method; Damage. ODUCTION opic hardening and/or kinematic hardening are ly used concepts to describe the plastic behavior of the materials (metal-like behavior) under complex loading ns. Regarding the translation of the yield surface tic hardening...