Through the polishing experiments of potassium dihydrogen phosphate (KDP) crystals based on deliquescent action, the effect of several major factors, including crystal's initial surface state, polishing time, and revolution of polishing plate, on material removal was researched. Under certain experimental conditions, the rules of material removal were reached, and experimental results are discu...

is much more complicated and leads to slowly convergent or even divergent expressions for the stress resultants. 2 The circular support's action on the plate is equivalent to a line load, and so the discontinuity in the elastic constants certainly make the deflection function singular at r = a. This is reflected in the fact that two different expressions are needed to describe the deflection fu...

the effect of a distributed patch mass on the natural frequency of vibration of a laminated rectangular plate with simply supported boundaries is investigated. the third order displacement field of a composite laminated rectangular plate is defined using the two variable refined plate theory. equations of motion of the plate are obtained with the help of calculus of variation. parametric study ...

in shallow foundations, the third bearing capacity factor, n, has been found to show a decreasing tendency with increasing the foundation size. it is supported by experimental observations and related mainly to stress level dependent nature of the soil. on the other hand, the bearing capacity is often obtained theoretically without consideration of the foundation vertical displacements. in thi...

In this paper, the response to moving concentrated masses of highly prestressed orthotropic rectangular plate resting on two parameter elastic sub-grades is investigated. equation governing motion under action travelling masses, it observed that a small multiplies highest order operator which peculiar singular perturbation problems. From literatures, problems in derivatives differential do not ...