プラスチック板の曲げ弾性係数について

概要

論文の詳細を見る
There have been many papers and publications affirming that the moduli of elasticity of plastics vary according to the type of loading-uniaxial tension, uniaxial compression or simple bending. The main purpose of the present study is to clarify whether or not such inconsistencies have been brought about by the intrinsic character of the mechanical behavior of plastics. In the first place, the moduli of elasticity in bending E_b and in tension E_t have been measured in a common but more precise manner, and their comparative studies have been performed. In the second place, whether or not there is any difference between E_t and the moduli of elasticity in compression E_c has been examined by bending the composed beam of plastics and metal. The following results have been obtained for various kinds of plastics sheets as conclusion. The differences among E_t, E_c and E_b as shown in many publications have been caused not by the intrinsic characteristic of the mechanical behavior of plastics but by some other factors. In determing E_b, care should be taken that the measurement should be carried out by the use of specimens with suita-ble width.
社団法人日本材料学会の論文
1966-11-15