The strength is determined by the observation of bending radius of curvature at fracture. The measurement of the radius of curvature causes errors in the strength evaluations. In addition, this manner ignores compressive strain induced by the applied force. This study proposes use of a theoretical ...
In seismically active areas along the San Andreas fault system, the effective stress (defined as the static frictional stress minus the sliding frictional stress) and the fracture strength (defined as the static frictional stress minus the initial stress) will be very small near the Earth's ...
The theoretical model for estimation of brittle strength of particle composites is proposed based on rigorous analytical solution of elasticity boundary-value problem for multi-particle model. The essence of method is the representation of displacement vector by series on partial vectorial solutions of ...
The precise prediction of defects (e.g. fracture and springback) using sheet metal forming simulations relies on the accuracy of the yield function, the constitutive model, and its parameters (i.e. material model which should reproduce the actual plastic deformation behavior). The material model ...
equilibrium at the same time, the residual effects will not be uniform and will be more pronounced at locations where defects and stress concentrators are... Sih,GC,Tang,... - 《Theoretical & Applied Fracture Mechanics》 被引量: 22发表: 2005年 Association of Crohn's disease-associated NOD2...
theoretical contradiction, since at threshold loading the plastic zones should be very small. In order to clarify the situation, results from three approaches were compared: (i) linear-elastic fracture mechanics, (ii) nonlinear Hutchinson-Rice-Rosengren (HRR) stress field and (iii) elastic-plastic...
Theoretical study of the influence of the molecular weight on the maximum tensile strength of polymer fibers A stochastic Monte Carlo approach, based on the kinetic theory of fracture, has been used to study the axial maximum tensile strength of polymer fibers. Th... Y Termonia,P Meakin,P ...
strengthmodulicross-sectional area of polymer chainsstress concentrationthermal fluctuationBased on the kinetic theory of fracture, the equation was used to calculate the theoretical strength, 蟽th, of polymers using the crystal lattice modulus, Ec, the activation energy of thermal degradation, U, and...
Considerable research has been undertaken in recent years on the brittle fracture modeling of underground mine pillars. To date, however, the characterization of pillars has largely focused on the production of discrete fracture mapping by conventional pillar mapping and the development of empirical pilla...
Luca Susmel,David Taylor.Engineering Fracture Mechanics . 2009 (3)Susmel, L. and Taylor, D., The Theory of Critical Distances to Estimate the Static Strength of Notched Samples of Al6082 Loaded in Combined Tension and Torsion. Part II: Multiaxial Static Assessment, Eng. Fract. Mech. , 2010...