YOUNGS MODULUS CALCULATIONS FOR SYSTEMS WITH PERIODICALLY DISTRIBUTEDIDENTICAL SPHEROIDAL PORES OF VARIOUS SIZE, ORIENTATION, AND SHAPE ANISOTROPY

In the presented paper the Young's modulus for samples with periodical ly distributed spheroidal pores is calculated. The dependence of Young 's modulus on the total porosity, size, orientation, and shape anisotr opy of pores is investigated. It is shown that presence of pores flatt ened in the loading direction significantly reduces the Young's modulu s value already at low porosity. The Young's modulus as a function of porosity is also calculated for the system with the pore flattening de pendent on the value of total porosity. The theoretical curve is compa red with the experimental one for ceramics Dy2O3.