Engineering topics
Publications and source records attributed to Chou, P. C..
This study examines the yield criteria for anisotropic laminated media. It will be shown that for laminated media with isotropic layers, the criterion of Tsai and Wu is a direct extension of Von Mises'. Also presented here is a set of equations governing the relative positions of the yield ellipses. Furthermore, a general expression for the yield condition of a laminated medium composed of generally anisotropic layers is obtained.
Consideration of coupled stress waves generated by an impulsive load applied at one end of a semiinfinite plate. For the field equations governing the one-dimensional coupled waves a hyperbolic system of equations is obtained in which a strong coupling in the second derivatives exists. The method of characteristics described by Chou and Mortimer (1967) is extended to cover the case of strong coupling, and a study is made of the transient stress waves in a semiinfinite plate subjected to an initial step input. Coupled discontinuity fronts are found to propagate at different velocities. The normal plate stress and the bending moment at different time regimes are illustrated by graphs.
The transient response due to longitudinal impact of three aluminum cylindrical shells of different thickness-to-radius ratios is studied both analytically and experimentally. The analyses were obtained from method of characteristics' solutions of two sets of equations: one which includes the transverse shear, radial inertia, and rotary inertial effects; and the other set is from a modified membrane theory. Experimentally, longitudinal and circumferential strains are monitored along the length of each of the shells; the velocity of the impacter ring is also measured. The experimental results of this study indicate that the wave front, after traveling three diameters from the impacted end, propagates at essentially the plate velocity, in agreement with the theory. In addition, the longitudinal and circumferential strain calculated from the two theories are in good agreement with the experimental results.
Fracture of bumper protected fuel tanks subjected to hypervelocity meteoroid impact, applying method of characteristics to stress wave propagation in tank walls
Shell impact response and wave propagation in cylindrical and conical shells by experimental and analytical methods
Von Karman equations in dimensionless and finite difference forms for deflections of elastic circular plate with central hole under load solved by iteration
Fracture of bumper protected fuel tanks subjected to hypervelocity meteoroid impact, applying method of characteristics to stress wave propagation in tank walls
Classification of second order quasi-linear partial differential equations with two independent variables in structural dynamics with emphasis on elastic structures
Structural transient response calculated using characteristic method
Elastic wave problems involving one space variable solved by hyperbolic partial differential equations
Shock waves in water and stress waves in tank walls of water-filled fuel tanks impacted by hypervelocity particles
Characteristic method analysis of linear system of dynamic cylindrical equation for axisymmetric motion, including rotary inertia and shear correction factor
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One-dimensional elastic wave problems treated by hyperbolic partial differential equations and analyzed by method of characteristics
Unified approach to propagation of plane, cylindrical and spherical dilation waves in elastic media, using method of characteristics
Unified approach to one-dimensional elastic waves by method of characteristics
Numerical integration used for investigating flexural wave propagation in circular plate due to impulsive loads
Unified approach to propagation of plane, cylindrical and spherical dilation waves in elastic media, using method of characteristics