Effect of fiber reinforcement on dynamic crack growth in brittle matrix composites
Article Abstract:
The dynamic fracture behavior of fiber reinforced polyestercomposites is investigated. Experiments are conducted wherein the dynamic physical properties of several polyester specimens are studied through photoelastic techniques. The crack velocity is then determined by analyzing thephotographs of the structures isochromatic fringe patterns. Results show that the fiber reinforcment helps in the reduction of the crack velocity and dynamicstress intensity factor.
Publication Name: Journal of Engineering Materials and Technology
Subject: Science and technology
ISSN: 0094-4289
Year: 1993
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Residual stress measurement in spot welds and the effect of fatigue loading on redistribution of stresses using high sensitivity moire interferometry
Article Abstract:
Spot welding, or resistance spot welding, involves the joining of two or more pieces of sheet metal in localized areas or spots where melting and coalescence of a small volume of material occurs from heating caused by resistance to the passage of an electric current. Moire interferometry in conjunction with hole drilling is a viable technique for determining residual stresses in spot welded joints.
Publication Name: Journal of Engineering Materials and Technology
Subject: Science and technology
ISSN: 0094-4289
Year: 2001
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Numerical simulation of residual stresses in a spot welded joint
Article Abstract:
An incremental and thermal-electro-mechanical coupled finite element model is presented for predicting residual stresses distribution and the spot nugget size in a spot-welded steel joint. The study concluded that in the spot nugget, a highest tensile residual stress occurs at the center of the nugget and the residual stress decreases significantly at the edge of the nugget.
Publication Name: Journal of Engineering Materials and Technology
Subject: Science and technology
ISSN: 0094-4289
Year: 2003
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- Abstracts: Tailoring the microstructure of a metal-reinforced ceramic matrix composite
- Abstracts: Transient creep strain of a fiber-reinforced metal-matrix commposite under transverse loading. Identification of material constants of composite laminates using measured strains
- Abstracts: Application of EDM hole-drilling method to the measurement of residual stress in tool and carbon steels. Stress relaxation behavior at high-tension bolted connections of stainless-steel plates
- Abstracts: A closure model to crack growth under large-scale yielding and through residual stress fields. Simulation of multipass welding with simultaneous computation of material properties